Patent Publication Number: US-10327719-B2

Title: Sensor holding apparatus for facilitating dental imaging

Description:
PRIORITY NOTICE 
     This present application is a continuation-in-part of, and claims the benefit under 35 U.S.C. § 120 to, U.S. Non-provisional patent application Ser. No. 14/151,734, filed on Jan. 9, 2014, the disclosure of which is incorporated herein by reference in its entirety. 
    
    
     TECHNICAL FIELD OF THE INVENTION 
     The present invention relates generally to a sensor holding apparatus for dental imaging and more specifically to an apparatus for holding a sensor, which may be placed inside a patient&#39;s oral cavity for use in dental imaging. The apparatus comprises a removable sensor holder that implements a specialized shaft to circumvent the need for commonly used biteplates, thereby increasing the working space available to the dental practitioner performing a procedure in the oral cavity. 
     COPYRIGHT AND TRADEMARK NOTICE 
     A portion of the disclosure of this patent application may contain material that is subject to copyright protection. The owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyrights whatsoever. 
     Certain marks referenced herein may be common law or registered trademarks of third parties affiliated or unaffiliated with the applicant or the assignee. Use of these marks is by way of example and should not be construed as descriptive or to limit the scope of this invention to material associated only with such marks. 
     BACKGROUND OF THE INVENTION 
     Dental radiographs are x-rays used by medical professionals to ascertain detailed images of a patient&#39;s mouth so as to better identify dental disease. These radiographs are taken utilizing x-ray units, which include an x-ray tube or cone adjacent to an x-ray sensing device, and which is parallel to the area of interest in the oral cavity. The x-ray is directed perpendicular to the area and to the sensing device. X-ray sensing devices typically include x-ray film, digital sensors, phosphor plates and other related technologies that would be known by a person of ordinary skill in the art. These sensing devices are in a flat and commonly rectangular or elongated configuration, and can be placed into the oral cavity. 
     The x-ray sensing devices may be placed in the oral cavity in different ways to view various perspectives, orientations, and locations. For instance, a periapical placement displays the anterior or posterior tooth or teeth; included in the image is the tip of the root. Alternatively, a bitewing placement displays the central area around which the top and bottom set of teeth make contact with one another, additionally showing the crown of the imaged tooth. These placements can then be subdivided into right and left as well as maxillary and mandibular. Additionally, sensors may be placed such that images are taken in a vertical or horizontal direction depending on the desired depth or width of the desired field of view. 
     Recently, advancements in dentistry have shifted the focus from using x-ray film to digital sensors due in part to a decrease in the amount of x-rays (i.e. radiation) these sensors require the patient to be exposed to, as well as their convenient compatibility with electronic devices such as computers. The emergence of digital sensor devices has prompted creation of a respective field known as digital dental radiography. 
     Traditional holding mechanisms for x-ray film could be designed to clamp or pinch the thin x-ray film to keep it in place. However, this method cannot be utilized in digital sensors, which are thicker due to their imbedded technology. Moreover, digital sensors are more fragile and expensive and therefore must be handled very carefully. Makers of sensor holders adjusted for this change in a number of different ways. Many methods utilize a large biteplate as well as a ring and rod mechanism, wherein the rod is inserted perpendicular to the sensor holder and a ring slides through the holder, whereby the x-ray cone is properly aligned. Let biteplate be construed as part of a phosphor plate, film or digital x-ray sensor holder or sensor wherein a patient bites down on it in order to properly orient the plate, film, or sensor. While this design may be utilized when taking x-rays for routine examination, it is cumbersome to use during root canal procedures or other procedures involving obstructions within or surrounding the oral cavity. 
     In such cases, a device that employs a typical biteplate is not useful in such circumstances because the patient is not able to bite down on the biteplate due to the extreme pain in the tooth or due to the obstructions necessitated by many procedures, some of which include dental clamps, rubber dams, or files. This problem is further compounded by the ongoing concern that the operating field may become contaminated. 
     A rubber dam comprises a flexible sheet of latex or silicone and is a mandatory component of many procedures including root canals. The rubber dam creates a sterile environment within the tooth being treated by preventing bacteria and other contaminants from entering the patient&#39;s tooth from within the oral cavity. It also protects the oral cavity and the patient&#39;s airway by preventing medicaments as well as other materials used during the procedure from entering. A rubber dam is secured in a proper position around the tooth by placing it over a clamp and around the tooth. During root canal procedures, it is necessary to manipulate the rubber dam to take multiple radiographs to acquire appropriate measurements of the width and depth of the infected or aggravated areas which need cleaning and reshaping. To accomplish this, the sensor or film device has to be placed between the oral cavity and the underside of the rubber dam adjacent to the tooth being treated. When traditional sensor holders are utilized to achieve this, the rubber dam and adjacent parts need to be removed. Removal of the rubber dam allows for the introduction of foreign material, for instance bacteria, to enter the patient&#39;s tooth, potentially causing leakage and contamination of the field. In addition, it is quite difficult to fit the entire sensor holder on the underside of the rubber dam. 
     The biteplate portion of a typical sensor holder compounds the difficulties of properly placing the holder in the correct orientation and location because the clamp as well as the files rest in the occlusal field, also referred to as the biting surface of the tooth, which prevents the patient from biting down. Furthermore, the biteplate itself is a hindrance to acquiring useful radiographs because it prevents the patient from pushing the sensor into the vestibule to obtain a deep root image. Once the holder is finally placed under the dam, the alignment ring portion still needs to be slid into place for use by the x-ray cone. This has the adverse effect of agitating patients with the number and size of items in their mouth. Subjects commonly gag, have tongue thrusts, and misalign the imaging system, or compromise the operating field. 
     To prevent the issues discussed above, there is a need in the art for a sensor holding apparatus that can operate without a biteplate and which allows for compact, convenient sensor placement in the oral cavity with a variety of sensor shapes and dimensions so as to mitigate the problems associated with taking radiographs during dental surgeries. It is to these ends that the present invention has been developed. 
     SUMMARY OF THE INVENTION 
     To minimize the limitations in the prior art, and to minimize other limitations that will be apparent upon reading and understanding the present specification, the present disclosure describes an apparatus for holding a sensor, which may be placed inside a patient&#39;s oral cavity for use in dental imaging. 
     A sensor holding apparatus for facilitating dental imaging, in accordance with an exemplary embodiment of the present invention, comprises a handle an elongated shaft, longitudinally coupled to a distal end of the handle; and a sensor holder comprising a coupling component configured to removably attach to a portal end of the elongated shaft. 
     A sensor holder for dental imaging, in accordance with an exemplary embodiment of the present invention, comprises: a substantially flat body adapted to receive a sensor for capturing dental images; and a coupling component for removably attaching the sensor holder to a shaft or to an adapter configured to receive the sensor holder. 
     A sensor holding apparatus for facilitating dental imaging, in accordance with another exemplary embodiment of the present invention, comprises: a handle; an elongated shaft, longitudinally coupled to a distal end of the handle; and a sensor holder comprising a coupling component configured to removably attach to a portal end of the elongated shaft; wherein: the shaft comprises a cross-section adapted to receive a user&#39;s bite, the cross-section having a substantially polygonal perimeter; the sensor holder further comprises a substantially flat body having a substantially flat surface adapted for removably attaching a sensor to the sensor holder; and the coupling component is situated at a distal end of the substantially flat body of the sensor holder. 
     Furthermore, the substantially flat surface of the body of the sensor holder may comprise of one or more connectors for removably attaching the sensor to the sensor holder, or the sensor holder may be configured to receive an adhesive for removably attaching the sensor to the sensor holder. 
     Additionally, the apparatus may further comprise an adapter for coupling the sensor holder to the elongated shaft in a manner so that the sensor holder may be positioned in a substantially periapical placement or in a substantially bitewing placement. 
     It is an objective of the present invention to facilitate taking dental images, for example, digital dental radiographs. 
     It is another objective of the present invention to eliminate the need for a patient to have to bite down on a biteplate to take accurate dental images. 
     It is yet another objective of the present invention to be able to orient a sensor and sensor holder in a plurality of ways so as to facilitate accurate imaging for all dental image types, for instance periapical and bitewing images. 
     It is yet another objective of the present invention to provide a less invasive and disruptive means to take digital dental radiographs during dental surgeries, such as root canals. 
     It is yet another objective of the present invention to utilize a handle with a specialized shaft to eliminate the use of common biteplates, thereby increasing the working space available to the dental practitioner performing a procedure in the oral cavity. 
     These and other advantages and features of the present invention are described herein with specificity so as to make the present invention understandable to one of ordinary skill in the art. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
       Elements in the figures have not necessarily been drawn to scale in order to enhance their clarity and improve understanding of these various elements and embodiments of the sensor holding apparatus. Furthermore, elements that are known to be common and well understood to those in the industry are not depicted in order to provide a clear view of the various embodiments of the present invention. 
         FIG. 1( a )  is a close-up view of a patient&#39;s mouth fitted with a rubber dam, in preparation for a root canal procedure. The rubber dam partially covers the patient&#39;s mouth, exposing only the tooth or teeth on which, in the illustrated case, endodontic work will be performed. 
         FIG. 1( b )  is a close-up view of the root canal procedure of  FIG. 1( a )  as would be seen by a dental professional performing the procedure, wherein a sensor and sensor holding device in accordance with the present invention may be utilized to facilitate the procedure. 
         FIG. 2  depicts a sensor holding apparatus, in accordance with an exemplary embodiment of the present invention, comprising a sensor holder for attaching a radiograph sensor. 
         FIG. 3( a )  depicts a sensor holding apparatus, in accordance with another exemplary embodiment of the present invention, wherein the sensor holder is shown coupled to a handle portion of the apparatus, via a shaft that comprises a coupling member. 
         FIG. 3( b )  shows the sensor holding apparatus of  FIG. 3( a ) , which has been retrofitted with an adapter for coupling a sensor holder at an alternative angle. 
         FIG. 3( c )  is a close-up view of the adapter shown in  FIG. 3( b ) . 
         FIG. 3( d )  depicts various alternative cross-sections of a shaft, in accordance with different embodiments of the present invention. 
         FIG. 4( a )  depicts a sensor holding apparatus, in accordance with one embodiment of the present invention, wherein the sensor holder forms an integral part of the apparatus, and more specifically, wherein the sensor holder is permanently attached to the shaft. 
         FIG. 4( b )  depicts a sensor holding apparatus, in accordance with another exemplary embodiment of the present invention, wherein the sensor holder is shown de-coupled from the apparatus for, for example, disposing of a used sensor holder. 
         FIG. 4( c )  depicts a sensor holder and sensor holder receiving member, in accordance with an exemplary embodiment of the present invention, wherein the sensor holder comprises a coupling member for coupling with the sensor receiving member of the shaft shown in  FIG. 4( b ) . 
         FIG. 4( d )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( c ) . 
         FIG. 4( e )  depicts a sensor holder and sensor holder receiving member, in accordance with an exemplary embodiment of the present invention, wherein the sensor holder comprises a substantially flat coupling member for coupling with the sensor receiving member of the shaft shown in  FIG. 4( b ) , except the flat coupling member is positioned so that it is perpendicular to the longer side of the sensor holder. 
         FIG. 4( f )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( e ) . 
         FIG. 4( g )  depicts a sensor holder and sensor holder receiving member, in accordance with another exemplary embodiment of the present invention, wherein the sensor holder receiving member comprises a substantially flat protrusion extending from the shaft. 
         FIG. 4( h )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( g ) . 
         FIG. 4( i )  depicts a sensor holder and sensor holder receiving member, in accordance with yet another exemplary embodiment of the present invention. 
         FIG. 4( j )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( i ) . 
         FIG. 4( k )  depicts yet another embodiment of a sensor holder in accordance with the present invention, wherein the sensor holder comprises at least one connector for holding a sensor in place. 
         FIG. 4( l )  is a side-view of the sensor holder shown in  FIG. 4( k ) , wherein the sensor holder comprises at least one retention member, or connector, for holding a sensor in place. 
         FIG. 5( a )  depicts a sensor holding apparatus, in accordance with another exemplary embodiment of the present invention. In this embodiment, the sensor holder allows for quick and easy use of different orientations, and is shown in a horizontal periapical configuration. 
         FIG. 5( b )  depicts the sensor holder receiving end of a shaft, and the sensor holder shown in  FIG. 5( a ) , wherein the sensor holder comprises a coupling member for coupling with the sensor receiving end of the shaft. In this embodiment, the sensor&#39;s coupling member is adapted to couple with the sensor receiving in multiple ways. 
         FIG. 5( c )  depicts a side view of the sensor holder and sensor holder receiving end shown in  FIG. 5( b ) . 
         FIG. 5( d )  depicts the sensor holder apparatus shown in  FIG. 5( a ) , wherein the sensor holder is coupled in a manner so that it is positioned in a bitewing vertical configuration, with the aid of an adapter. 
         FIG. 5( e )  depicts the sensor holder apparatus shown in  FIG. 5( a ) , wherein the sensor holder is coupled in a manner so that it is positioned in a periapical vertical configuration, with the aid of an adapter. 
         FIG. 5( f )  depicts the sensor holder apparatus shown in  FIG. 5( a ) , wherein the sensor holder is coupled in a manner so that it is positioned in an anterior periapical configuration, with the aid of an adapter. 
         FIG. 6( a )  depicts yet another sensor holding apparatus shown in a horizontal periapical configuration, wherein the sensor holder and shaft include alternative embodiments in accordance with the present invention. 
         FIG. 6( b )  depicts a side view of the sensor holder shown in  FIG. 6( a ) . 
         FIG. 6( c )  depicts yet another sensor holding apparatus including a shaft configured to position the sensor holder in either a bitewing vertical configuration or a periapical vertical configuration. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     In the following discussion that addresses a number of embodiments and applications of the present invention, reference is made to the accompanying drawings that form a part thereof, where depictions are made, by way of illustration, of specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and changes may be made without departing from the scope of the invention. 
     An apparatus in accordance with the present invention comprises a removable sensor holder, which implements a specialized shaft to circumvent the need for commonly used biteplates, thereby increasing the working space available to the dental practitioner performing a procedure in the oral cavity. Such apparatus, and other embodiments of the present invention, are described and discussed in turn. 
     Primarily,  FIGS. 1( a ) and 1( b )  show the environment in which a dentist, specialist, endodontist, or more generally a practitioner, will be performing their work. Hence, the environment in which use of the present invention is practiced is described first.  FIG. 1( a )  is a close-up view of a patient&#39;s mouth fitted with a rubber dam, in preparation for a root canal procedure. The rubber dam partially covers the patient&#39;s mouth, preferably exposing only a tooth or teeth within the oral cavity on which endodontic work will be performed. The figure specifically depicts dam  104 , which has been placed to cover a patient&#39;s mouth, dam frame  105 , which holds dam  104  in place, clamp  103  for holding the opening that exposes a patient&#39;s tooth or teeth, and exposed tooth  101 , on which the specialist will be performing the procedure. Similarly,  FIG. 1( b )  is a close-up view of the root canal procedure depicted in  FIG. 1( a )  as would be seen by a dental professional performing the procedure, wherein a sensor and sensor holding device in accordance with the present invention may be utilized to facilitate the procedure. 
     As may be noted by both figures, there is not much room for a practitioner to work on tooth  101 ; since repeated radiographs are required during the procedure, a compact sensor holder in accordance with the present invention allows the practitioner to properly perform the procedure with greater ease than with the typically bulky sensor holding devices found in the prior art. 
     To create context for disclosing the present invention, a typical procedure such as a root canal is explained: Tooth  101  is typically a tooth that has likely become infected, especially in the nerve well below the tooth. At the top of tooth  101  is the enamel, with the crown residing just below the enamel. In treating tooth  101 , it is typical to use one or more devices, such as a file, to perform the necessary procedure or treatment. Hence, tooth  101  has file  102  projecting downward through the center of the tooth, first through the enamel, then through the crown, dentin, and pulp, in that order. File  102  is a very thin tool with a shaft much like a needle, which is drilled through the layers of the tooth until reaching the nerve. However, file  102  or any other file provides little to no visible feedback as to the depth the dental professional has drilled. Thus, dental images, for example radiographs, are required throughout the filing process to determine how far the practitioner has drilled, and subsequently how much farther he or she needs to drill to reach the nerve. 
     Tooth  101  and file  102  take up some room in and around the oral cavity. Additionally, clamp  103 , rubber dam  104 , and rubber dam frame  105  add to the already cramp space. Thus, taking a dental image, for example a digital dental x-ray, which requires the use of a sensor that is also placed inside the patient&#39;s mouth, becomes an unnecessarily cumbersome process for various reasons. 
     For example, fitting additional tools or components such as film or sensors inside the oral cavity cause discomfort and pain to the patient. Furthermore, time is spent removing and reapplying rubber dam  104 , and crowding in the oral cavity with dental tools and equipment, which makes it more difficult for the practitioner to perform their work, and may causes contamination of the operating field (such as tooth  111 ). 
     With regards to inefficiencies in the process of removing and reapplying rubber dam  104  when taking progressive radiographs, the following process for application of rubber dam  104  is presented as evidence. To place rubber dam  104 , clamp  103  is first placed on tooth  101  undergoing treatment or on the tooth behind it using forceps. Clamp  103  has a pair of jaws which are laterally opposed and are connected by a bridge. The jaws grip the tooth on the buccal (cheek) and the lingual (tongue) side of the tooth right above the gum line. A small hole is punched into rubber dam  104 , typically approximately two millimeters by two millimeters, although the hole can vary in size depending on the surgeon&#39;s preference. Rubber dam  104  is then secured in a proper position around the tooth by placing it over clamp  103  and around tooth  101  or the adjacent tooth. The hole of rubber dam  104  shrinks snugly around tooth  101  and the crown stands out from the hole in rubber dam  104 . Then, rubber dam frame  105  is placed at the outer periphery of rubber dam  104  and outside the patient&#39;s mouth, in order to keep rubber dam  104  firmly in place. 
     Rubber dam  104  is kept in place by an integrally incorporated rubber dam frame  105 , both of which are necessarily removed when using a sensor holding apparatus in the prior art. Hence, many of the steps of this process need to be repeated a plurality of times in a single root canal procedure if a sensor holding apparatus present in the prior art is utilized. By contrast, a more compact sensor holding apparatus, in accordance with the present invention does not require removal of rubber dam  104 ; this is accomplished primarily by eliminating the need of a traditional bitewing, and incorporating a special shaft or handle, which serves the same purpose as a biteplate, but without the need for the additional component typical of the prior art. 
     Biteplates are present on most holders for digital dental radiographs, including both periapicals and bitewings. These biteplates, in addition to the tendency to induce gagging, are also difficult to adjust once set in place. Doing so requires either the patient or technician to reach into the oral cavity of the patient and readjust the biteplate, frequently prompting supplementary gagging. Additionally, a biteplate has a static relationship with the sensor holder it is attached to. As such, it becomes problematic to take some dental images where the shape, size, or alignment of the jaw or teeth is abnormal or simply different than the biteplate is equipped to handle. The present invention eliminates a biteplate, instead including a handle with a specialized shaft, whereby the patient or technician need only move the handle to customize each image to the oral cavity of the patient. Furthermore, the specialized shaft circumvents the need for the commonly used biteplates, thereby increasing the working space available to the dental practitioner performing the procedure in the oral cavity. 
     It is important to note that the advantages and applications of the proposed invention are not limited to root canal procedures, or more generally, endodontic treatments, but are in fact preferential for general dental imaging such as radiographs or x-rays. This means that the present invention may be implemented in a variety of procedures outside of surgeries, for instance at dental checkups, as well. 
     Turning now to the remaining figures,  FIG. 2  depicts a sensor holding apparatus, in accordance with an exemplary embodiment of the present invention, comprising a sensor holder for attaching a sensor such as a radiograph sensor. Sensor holding apparatus  200  comprises: handle  201 , which includes cable groove  202 ; shaft  203 , which further comprises a sensor holder receiving member (or first coupling component  204 ); and sensor holder  205 , which further comprises a sensor holder coupling member (or second coupling component  206 ) for coupling with shaft  203 . 
     Handle  201  is typically roughly cylindrical in shape with cable groove  202  disrupting the cylindrical shape and forming a cavity along its length in a region roughly equivalent to the dimensions of a traditional cable line, such as one that may be found on a typical radiograph sensor. Cable groove  202  allows sensor cable  208  of sensor  207  to be held securely in place. This feature simply keeps the wire or cable that extends from such sensors, from getting in the way of a practitioner during a procedure. In one embodiment, handle  201  does not include cable groove  202 , however, cable groove  202  may be desirable as a means to keep sensor cable  208  out of a practitioner&#39;s way. In embodiments wherein cable groove  202  is a feature of handle  201 , cable groove  202  may secure a sensor cable in a number of ways. For example, and without limiting the scope of the present invention, one cable groove  202  secures sensor cable  208  through physical pressure. Alternatively, sensor cable  208  may be held in place within cable groove  202  using any other known means such as a locking mechanism. 
     Handle  201  may be constructed of a number of materials without limiting or deviating from the scope of the present invention. For example, handle  201  may be constructed of plastic, nylon, metal, wood, or any other material that may be formed or may is moldable into a shape that is easy to hold. Typically, a synthetic thermoplastic polymer can be used to form an adequate shape, however any other material may be utilized without departing from the scope of the present invention. Additionally, handle  201  may differ from the approximate cylindrical shape of the embodiment shown in  FIG. 2 , and may have any other shape that is suitable for placing a hand over handle  201  and manipulating apparatus  200 . In alternative embodiments, handle  201  may be of similar thickness and material to shaft  203 , however, in an exemplary embodiment, handle  201  comprises a plastic material ergonomically shaped to allow for easy and comfortable manipulation of apparatus  200 . Handle  201  may be used with any dental imaging, though it is particularly useful for obtaining images such as those which are defined by a periapical view of the oral cavity because of its parallel orientation to sensor holder  206 . 
     Shaft  203  is connected to handle  201  and typically extends in a straight, forward direction out of handle  201 , though other embodiments exist. For example, and without limiting or deviating from the scope of the present invention, shaft  203  may be S-shaped, L-shaped, or angled. In an exemplary embodiment however, shaft  203  is straight and extends away from one end of handle  201  in linear form so as to form a predominantly straight line—this way, less space is taken by apparatus  200 , when inserted inside a patent&#39;s mouth or oral cavity during a procedure, making it easier on the patient, and facilitating a more efficient procedure for the practitioner. 
     Shaft  203  may be constructed of the same material, or a different material as handle  201 . Hence, shaft  203  may be constructed of metal, plastic, or any other material that offers durability and stability for holding a sensor. Furthermore, shaft  203  may comprise a cross-sectional shape that is configured to allow a patient to easily bite down on shaft  203  so as to stabilize apparatus  200  during the taking of a radiograph or x-ray. The shape of such a cross-section or surface area of shaft  203  may comprise a variety of forms without deviating from the scope of the present invention, but several forms or shapes are discussed in more detail below, with reference to  FIG. 3( d ) ; for example, in an exemplary embodiment, shaft  203  has a substantially hexagonal cross-section for allowing a patient to easily bite down on apparatus  200 . 
     Shaft  203  comprises first coupling component  204 , which may be separate or integral with shaft  203 . First coupling component  204  is adapted to connect sensor holder  205  to handle  201  so that a practitioner may manipulate sensor  207  (once attached to sensor holder  205 ) during a procedure that requires radiographs or x-rays. In the pictured embodiment, first coupling component  204  is integral with shaft  203  and is located on the distal end of shaft  203 . First coupling component may be constructed of a different material or the same material as shaft  203 . As stated above, first coupling component  204  may be a separate part from shaft  203 , or may be a feature that forms an integral part of shaft  203 . For example, and without limiting the scope of the present invention, first coupling component may be a socket (see  FIG. 4( c ) ) or a protrusion (see  FIG. 4( e ) ) that extends and forms an integral part of shaft  203 . 
     Sensor holder  205  is shaped in a manner so as to accommodate a typical radiograph sensor used in taking x-rays from a patient. For example, and without limiting the scope of the present invention, sensor holder  205  has a substantially rectangular shape that is long enough and wide enough to receive the flat end of sensor  207 . However, sensor holder  205  may comprise of any shape without deviating from the scope of the present invention, so long as it has a surface area adequate enough to receive and be coupled to a typical sensor, such as sensor  207 . As with the other components of apparatus  200 , sensor holder  205  may be constructed of a variety of materials so long as sensor holder  205  is durable and strong enough to sustain the weight of sensor  207 . In an exemplary embodiment, sensor holder  205  is constructed from a material such as a plastic so that it is inexpensive, yet durable, and may be designed for disposable use. In another embodiment, sensor holder  205  is constructed so that it is resistant to sterilizing equipment, and hence sensor holder  205  may be easily sterilized in a practitioner&#39;s office or clinic. 
     Sensor holder  205  further comprise second coupling component  206 , which is configured to connect or couple with first component  204 . Second component  206  and first component  204  connect sensor holder  205  and shaft  203  in a manner so that apparatus  200  is stable and sturdy enough for a practitioner to manipulate sensor  207  into and out of a patient&#39;s oral cavity. Like first component  204 , second component  206  may comprise a separate part from sensor holder  205  or may form an integral part with sensor holder  205 . For example, and without limiting the scope of the present invention, second component  206  may comprise a substantially flat protrusion extending from a predominantly rectangular body, for example, see  FIG. 4( b ) . Alternatively, second coupling component  206  may comprise a shape that forms a socket affixed to sensor holder  205  in a manner so that it is adapted to receive a complimentary coupling component, for example, see  FIG. 4( d )  and  FIG. 4( e ) . 
     When sensor holding apparatus  200  is fully assembled, first coupling component  204  is coupled to second coupling component  206  so that apparatus  200  is sturdy. This may be accomplished with several known methods without deviating from the scope of the present invention. For example, first coupling component  204  and second coupling component  206  may couple by way of friction and pressure created among the two components when coupled together. Alternatively, first coupling component  204  and second coupling component  206  may be coupled together with magnets, adhesives, interlocking mechanisms, or any other method so long as a sturdy, reliable coupling is established. 
     Sensor holder  205  may be either disposable or sterilizable and may be removably or permanently affixed to sensor  207 . In embodiments which employ a disposable sensor holder  205 , a closed contamination sleeve may be employed then removed along with sensor holder  205  from shaft  203  and handle  201  after usage. In alternative embodiment, a protective sheath may be placed around disposable sensor holder  205  and sensor  207 . Preferably, sensor holder  205  is disposable and will comprise relatively weak materials, such as but not limited to plastic or nylon, which may be manufactured with more cost efficient means than stronger, longer lasting materials meant for repeated use and recurring sterilizations. Alternatively, as stated above, a protective sheath such as those well known in the art may be utilized when reusable materials will be implemented to construct sensor holder  205 . 
     Affixation of sensor  207  to sensor holder  205  may occur in a plurality of ways—for example, sensor holder  205  may comprise one or more adhesive materials, which affixes sensor  207  to sensor holder  205  when pressed together with sufficient force. Alternatively, sensor  207  may comprise one or more adhesive materials, which may affix sensor  207  to sensor holder  205  when pressed together with sufficient force. These and other methods for affixing, coupling or attaching a sensor to a sensor holder in accordance with the present invention, are disclosed in more detail below, particularly with reference to  FIG. 4( k )  and  FIG. 4( l ) . In an exemplary embodiment, sensor holder  205  is disposable and comprises an adhesive material used to affix sensor  207  to sensor holder  205 . Possible compositions of the adhesive material include, but are not limited to, epoxy, acrylics, cyanoacrylates, silicones, hot melt, tape, polyurethanes, pressure-sensitive adhesives, contact adhesives, or any other type of known adhesive suitable to hold a sensor securely in place, and allow for the removal of the sensor after use. 
     Turning to the next figure,  FIG. 3( a )  is a sensor holding apparatus, in accordance with another exemplary embodiment of the present invention, wherein the sensor holder is shown coupled to a handle portion of the apparatus, via a shaft that comprises a coupling member. Sensor holding apparatus  300  is similar in functionality to sensor holding apparatus  200 , with a few notable differences henceforth elaborated upon. 
     Sensor holding apparatus  300  comprises similar components as apparatus  200 , including a handle, shaft, sensor holder, and coupling components that allow the sensor holder and shaft to be coupled and de-coupled for cleaning or to replace the sensor holder. Of course, an apparatus for holding a sensor in accordance with the present invention could be constructed as a single unit, eliminating any removable part or components, without deviating from the scope of the present invention. While such embodiment could be a useful disposable embodiment, current prices and manufacturing costs of producing such disposable devices, it may be more desirable for apparatus  300  to comprise several components so that only a smaller component, for example holder  304 , is disposable and hence the remaining components reusable. 
     Apparatus  300  may also comprise of removably coupled parts or components so that apparatus  300  is adaptable to a variety of sensor holder types. For example, it may be desirable to allow for retrofitting apparatus  300  with interchangeable sensor holders configured for different angled or positioned radiographs. This interchangeable feature may be accomplished in any number of ways without limiting or deviating from the scope of the present invention. For example, shaft  303  may be configured so that it can be inserted into a portion of sensor holder  304  in a manner similar to those disclosed in reference to  FIG. 2 . 
     In one embodiment, shaft  303  comprises an end portion that is angled at 90 degrees. Alternatively, angled second or first coupling members may be implemented either to the sensor holder or the shaft, respectively. 
     In an exemplary embodiment, as shown, in  FIG. 3( b )  apparatus  300  is coupled to sensor holder  304 , via adapter  302 , which is configured to couple to both shaft  303  and sensor holder  304  by receiving both coupling components of the shaft and the sensor holder. Adapter  302  is angled at 90 degrees and comprises ends for receiving a first and a second coupling component, such as first coupling component  204  and second coupling component  205 . It should be noted that adapter  302  is just one embodiment of the present invention, and that in other embodiments, shaft  303  may be integral with or form the 90 degree angled adapter so that shaft  303  can be coupled with sensor holder  304  at the desired angle (for example, see  FIG. 6( a ) ). 
       FIG. 3( c )  is a close-up view of adapter  302  and depicts its elements. Adapter  302  is a component of a sensor holding apparatus in accordance with the present invention, which may be utilized with apparatus  300 . Adapter  302  comprises two ends that are adapted for coupling with shaft  303  and sensor holder  304 . As depicted, adapter  302  comprises a sensor holder receiving end (or end  310 ) for coupling with sensor holder  304 , and a shaft receiving end (or end  311 ) for receiving shaft  303 . Adapter  302  typically has a curved or hooked configuration that substantially forms a 90-degree angle, which as stated above, makes it useful for making bitewing-oriented digital dental radiographs. This facilitates for example, obtaining images of the lower half of the maxillary teeth and upper half of the mandibular teeth, including the crowns of those teeth. 
     As stated above, adapter  302  is a separate piece from shaft  303  and sensor holder  304 , and may be removably affixed to shaft  303  and sensor holder  304 . Nevertheless, it is to be understood that other means of achieving the same result may be implemented without deviating from the scope of the present invention. For example, in an alternative embodiment, sensor holder  304  may have a second coupling end that substantially forms a 90-degree angle. In yet another embodiment, shaft  303  has a curved first coupling member that substantially forms a 90-degree angle. Either way of providing a different angled position for accommodating different types of desired images of a patient may be implemented without limiting or deviating from the scope of the present invention. 
     Adapter  302  does not limit which digital dental radiographs may be taken if it is included as a component of the present invention. In an exemplary embodiment, adapter  302  is L-shaped, though the orientation or exact dimensionality of the L-shape is not to be limited. Adapter  302  may be of either identical or different material or dimensionality than shaft  303  and any of its components. 
     Turning to the next figure,  FIG. 3( d )  depicts various alternative cross-sections of a shaft, in accordance with different embodiments of the present invention. As mentioned above, a shaft in accordance with the present invention may be cylindrical or comprise of any other shape adapted for allowing a patient to bite down on apparatus  300  in order to help the practitioner hold the sensor still and achieving proper angulations of the sensor inside the patient&#39;s mouth. 
     In an exemplary embodiment, shaft  303  includes shaft cross section  305 , which is shaped in a hexagonal shape so as to provide a substantially cylindrical circumference that includes various flat planes that aid a patient&#39;s bite to securely hold the shaft still. This configuration may be desirable because having no flat planes or surfaces may cause shaft  303  to swivel from side to side during the taking of the dental image, hence having to require the practitioner to take and retake the desired image. Additionally, this polygonal shaped perimeter of the shaft facilitates proper angulations of the sensor. Other cross-sectional shapes may be implemented without limiting or deviating from the scope of the present invention, and a few possible configurations are shown as examples in  FIG. 3( d )  next to cross-section  305 . For example, and without limiting the scope of the present invention, shaft  303  may comprise of a cross-section adapted to receive a user&#39;s bite, wherein the cross-section forms a substantially polygonal perimeter, such as a hexagonal shape, a square shape, an octagonal shape, or any other shape that may be easily held by a patient&#39;s bite and or facilitate proper angulations of the sensor. 
     Turning now to  FIGS. 4( a )-4( l ) , other embodiments of a sensor holding apparatus are discussed, with particular focus on various possible embodiments for a sensor holder in accordance with the present invention. 
       FIG. 4( a )  depicts a sensor holding apparatus, in accordance with one embodiment of the present invention, wherein the sensor holder forms an integral part of the apparatus, and more specifically, wherein the sensor holder is permanently attached to the shaft. As shown in  FIG. 4( a ) , sensor holding apparatus  400  comprises handle  405 , which includes shaft  404 . Integral with shaft  404 , is sensor holder  401 , which includes a flat surface for receiving a digital radiograph sensor. 
     As mentioned above, a sensor holding apparatus in accordance with the present invention may comprise a single unit and need not include detachable components such as a removably coupled sensor holder. However, it is typically desirable to provide removable components, including a removable sensor holder, so that these various removable components can be constructed in a less expensive manufacturing process, including for the purposes of making said components disposable. 
       FIG. 4( b )  depicts a sensor holding apparatus, in accordance with one exemplary embodiment of the present invention, wherein the sensor holder is shown de-coupled from the apparatus for disposing of a used sensor holder. 
     Sensor holding apparatus  400  comprises similar components as those of the embodiments mentioned above, including a handle, a shaft, a coupling component for coupling a sensor holder, and a sensor holder configured to be coupled to a handle that includes a shaft. Specifically, apparatus  400  comprises sensor holder  401 , which further comprises a sensor holder coupling member  402  for coupling with shaft  404 . As other embodiments, apparatus  400  includes handle  405 , which includes shaft  404 , and coupling component  403  for coupling with sensor holder  401 . 
     Focusing now on sensor holder  401 , sensor holder  401  includes a flat surface for attaching or affixing a digital sensor. As mentioned above sensor holder  401  may be either disposable or sterilizable. In embodiments which employ a disposable sensor holder  401 , a closed contamination sleeve may be employed then removed along with sensor holder  401  from shaft  403  and handle  405  after usage. In another embodiment, a protective sheath may be placed around disposable sensor holder  401  and the sensor affixed to sensor holder  401 . In an exemplary embodiment, a disposable sensor holder  401  will comprise relatively weak materials, such as but not limited to plastic or nylon. If utilized along with a protective sheath, the material of the protective sheath would be known by a person of ordinary skill in the art. In an exemplary embodiment, sensor holder  401  is disposable and comprises an adhesive material used to affix a sensor to sensor holder  401 . Possible compositions of the adhesive material include, but are not limited to, epoxy, acrylics, cyanoacrylates, silicones, hot melt, tape, polyurethanes, pressure-sensitive adhesives, contact adhesives, or any other type of known adhesive suitable to hold a sensor securely in place, and allow for the removal of the sensor after use. 
     Furthermore, sensor holder  401  is typically removably coupled to shaft  404  by any number of coupling components, such as coupling components  402  and  403 . Typically, coupling component  402  may have a shape resembling an inverse or complementary shape as that of coupling component  403 . For example, and without limiting or deviating from the scope of the present invention, coupling component  402  could comprise the shape of a circle, triangle, parallelogram, pentagon, hexagon, or any other shape so long as it is complementary in shape to coupling component  403 —in order for the two parts to fit together securely. In the exemplary embodiment exemplified in  FIG. 4( b ) , coupling component  402  has a flat rectangular shape, and coupling component  403  has a complementary flat rectangular shape adapted to receive coupling component  402 . 
     It is understood that the configuration of the coupling components that bring together sensor holder  401  and shaft  404  are not limited to those described herein, and any other configuration possible would not deviate from the scope of the present invention. For example, as shown in  FIG. 4( b )  coupling component  402  may be inserted into coupling component  403 . Alternatively, as shown in the various examples that follow, coupling component  402  could be configured to receive coupling component  403 . 
       FIG. 4( c )  depicts a sensor holder with a coupling component  402 , and sensor holder receiving member or coupling component  403 , in accordance with an exemplary embodiment of the present invention. In this exemplary embodiment, the sensor holder comprises a substantially flat surface, and a substantially flat protrusion that extends outwardly from its surface to form coupling member  402  for coupling with the sensor receiving member (coupling member  403 ) of shaft  404  as shown in  FIG. 4( b ) . 
       FIG. 4( d )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( c ) , depicting how sensor holder  401  and the sensor receiving member of shaft  404  (coupling component  403 ) may be coupled together, in accordance with another embodiment of the present invention. In this exemplary embodiment, coupling component  402  and coupling component  403  are positioned along a longitudinal axis of the sensor holder, wherein the coupling members each comprise a substantially flat protrusion. This vertical orientation allows for an efficient use of space, as a horizontal orientation (i.e. a latitudinal configuration) may add more bulk to apparatus  400 . On the other hand, a latitudinal configuration may be desirable if, for example, a sturdier construction of sensor holder  401  may be achieved when implementing a latitudinal configuration. Such latitudinal configurations are described below as alternative embodiments of the present invention. 
     Turning first to the following figure however,  FIG. 4( e )  depicts a sensor holder and sensor holder receiving member, in accordance with an exemplary embodiment of the present invention. In the exemplary embodiment shown, sensor holder  401  comprises a substantially flat coupling member—coupling member  402 , for coupling with sensor receiving member (coupling member  403 ) of the shaft. In this embodiment, the flat coupling member is positioned so that it is perpendicular to the longer side of sensor holder  401 ; this configuration allows for taking dental radiographs at a different angle or position. 
     Similarly,  FIG. 4( f )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( e ) , depicting how the sensor holder and sensor receiving member may be coupled together, in accordance with one embodiment of the present invention, wherein the coupling member and receiving member are positioned along a longitudinal axis of the sensor holder. 
       FIG. 4( g )  depicts a sensor holder and sensor holder receiving member, in accordance with another exemplary embodiment of the present invention, wherein the sensor holder receiving member comprises a substantially flat receiving member for coupling with the sensor holder coupling member. Similarly,  FIG. 4( h )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( g ) , wherein the coupling member and receiving member are positioned along a latitudinal axis of the sensor holder, and wherein the receiving member comprises a substantially flat protrusion. 
     To expand on the various embodiments that may be implemented in accordance with the present invention,  FIG. 4( i )  depicts a sensor holder and sensor holder receiving member, in accordance with another exemplary embodiment of the present invention, wherein the sensor holder coupling member (coupling component  402 ) and sensor holder receiving member (coupling component  403 ), are positioned along a longitudinal axis of the sensor holder as in  FIG. 4( d )  and  FIG. 4( f ) , but wherein the coupling component  403  comprises a substantially flat protrusion, and coupling component  402  is adapted to receive said protrusion. 
     Similarly,  FIG. 4( j )  depicts a side view of the sensor holder and sensor holder receiving member shown in  FIG. 4( i ) . In this exemplary embodiment, coupling components  402  and  403 , once coupled, remain coupled through friction. In such an embodiment, coupling component  403  may be minutely smaller in dimension than coupling component  402  so that each component is forced through friction and pressure to remain coupled until sufficient deliberate force is applied to decouple the components. In an alternative embodiment, friction is not the primary factor keeping components  402  and  403  coupled, but instead a locking mechanism may be implemented. For example, and without limiting or deviating from the scope of the present invention, other locking mechanisms may be snapped, clicked, slid, or otherwise locked into place. Whatever mechanism is implemented, typically, reversal of the step performed to couple coupling component  402  and coupling component  403  decouples the two components, and a new usable sensor holder  401  may be coupled to shaft  404 . 
       FIG. 4( k )  depicts yet another embodiment of the sensor holding apparatus shown in  FIG. 4( b ) , wherein sensor holder  401  comprises at least one retention member, or connector, for holding a sensor in place. Sensor holder  401 , with reference to  FIG. 4( k ) , comprises coupling component  402  and at least one of connectors  406 . Connectors  406  may be desirable for securing a sensor such as sensor  207  to sensor holder  401 . In the pictured embodiment, there are four retention members or connectors  406 , with one connector roughly in each corner of sensor holder  401 . However, any number of connectors or retention members may be implemented without limiting or deviating from the scope of the present invention. For example, a retention member may comprise of multiple connectors along the edges of a surface of the sensor holder. Alternatively, a retention member may be a grooved edge at the perimeter of the surface of the sensor holder. This edge, or retention member, may be configured to receive the sensor and hold the sensor securely against the flat surface by creating a pressure. In the shown embodiment, the retention member comprises of connectors  406 . 
     Connectors  406  may be designed to hold sensors with deference to the various shapes and sizes of x-ray sensors on the market. In an exemplary embodiment, connectors  406  may be curved or angled substantially parallel to the flat surface on sensor holder  401  on which a sensor may be affixed. As shown in  FIG. 4( l )  one of connectors  406  has been positioned to allow for a sensor to be held in place by pressure exerted between the connector and the sensor. In the embodiment shown, a sensor may be slid into place parallel to the orientation of sensor holder  401  then secured by the pressure asserted by each of the connectors  406 . Furthermore, connectors may be located in any location on sensor holder  401  and many shapes or configurations may be implemented without limiting or deviating from the scope of the present invention. For example, connectors  406  may comprise additional devices to hold a sensor in place in addition to or the alternative to utilizing pressure; they may implement locking mechanisms, magnetic mechanisms, or any other type of device that may be configured for removably attaching a sensor to sensor holding apparatus  400 . As such, connectors  406  as depicted in  FIG. 4( k )  and  FIG. 4( l )  are merely illustrative and not exhaustive or required by sensor holding apparatus  400 . 
     In other embodiments, a sensor may be coupled to sensor holder  401  by utilizing edge pressure achieved by a grooved molding that is integral with the body of sensor holder  401 . In such embodiment, a retention member may comprise, not connectors, but a molding that may be shaped so as to receive a sensor and hold it against the surface of sensor holder  401  by pressure. Such moldings are well known and may be easily implemented with sensor holder  401  by one skilled in the art. 
     Turning next to  FIGS. 5( a ) through 5( f ) , another exemplary embodiment of a sensor holder apparatus is described. In this embodiment, the sensor holder may be adapted in a variety of configurations so that a practitioner may utilize a single type of sensor holder for different types of dental images.  FIG. 5( a )  depicts a sensor holding apparatus, in accordance with another exemplary embodiment of the present invention. In this embodiment, the sensor holder allows for quick and easy use of different orientations, and is shown in a horizontal periapical configuration. 
     Sensor holder apparatus  500  comprises sensor holder  501 , which is removably coupled to shaft  504  of handle  505 . Shaft  504  comprises a sensor holder receiving end, or coupling member  503 . Similar to the embodiments described above, shaft  504  has a cross section that comprises a hexagonal shape, which allows a patient to securely hold apparatus  500  in a desired position, by receiving the patient&#39;s teeth so that the shaft does not rotate but stays in a fixed position. Coupling member  503  is typically one end of shaft  504  that has been adapted to engage or mate with sensor holder  501 . 
     Sensor holder  501  comprises a body that includes flat surface  506  for placing an adhesive in order to attach a sensor. Furthermore, sensor holder  501  further comprises coupling member  502 , which in this embodiment is a protruding portion that forms an opening on two ends ( 502   a  and  502   b ) and is adapted to receive coupling member  503  from either end  502   a  or end  502   b . This allows sensor holder  501  to be dynamic, in that a practitioner may utilize sensor holder  501  in several configurations. Additionally, in various embodiments, coupling member  503  may be mated with coupling member  502  in a manner so that coupling member  503  of shaft  504  extends about mid-length of sensor holder  501  by inserting coupling member  503  through both ends  502   a  and  502   b . In this manner, the apparatus affords the practitioner greater flexibility when maneuvering the sensor inside the patient&#39;s mouth. 
       FIG. 5( b )  depicts the sensor holder receiving end of shaft  504  (i.e. coupling member  503 ) and sensor holder  501 , showing ends  502   a  and  502   b  of coupling member  502 . In another view,  FIG. 5( c )  depicts the sensor holder and sensor holder receiving end shown in  FIG. 5( b ) , illustrating how coupling member  503  may be inserted or mated with coupling member  502  by inserting it on end  502   a  of coupling member  502 . 
       FIG. 5( d )  depicts the sensor holder apparatus shown in  FIG. 5( a ) , wherein the sensor holder is coupled in a manner so that it is positioned in a bitewing vertical configuration, with the aid of adapter  508 . Similar to adapter  302 , adapter  508  is configured so that a 90-degree angle may be formed. This allows for a variety of configurations that are desirable to a practitioner. 
     In  FIG. 5( d ) , and the remaining figures, adapter  508  is shown as a male to female adapter. However, it should be noted that adapter  508  may be a male to male, a female to female, or any other type of adapter suitable for mating a shaft portion of the apparatus to the sensor holder itself.  FIG. 5( e )  depicts the sensor holder apparatus shown in  FIG. 5( a ) , wherein the sensor holder is coupled in a manner so that it is positioned in a periapical vertical configuration, with the aid of adapter  508 .  FIG. 5( f )  depicts the sensor holder apparatus shown in  FIG. 5( a ) , wherein the sensor holder is coupled in a manner so that it is positioned in an anterior periapical configuration, with the aid of adapter  508 . In each of the configurations, it should be noted that handle  505  of sensor holder apparatus  500 , may be positioned so that cable groove  507  secures the cable of a sensor for attaching to the apparatus, in a manner so that it is out of the way. 
     Turning to the final set of figures,  FIG. 6( a )  depicts yet another sensor holding apparatus shown in a horizontal periapical configuration, wherein the sensor holder and shaft include alternative embodiments in accordance with the present invention. Sensor holding apparatus  600  comprises sensor holder  601 , which is illustrated in an exploded view decoupled from shaft  604   a  of handle  605 . As with other embodiments, handle  605  includes cable groove  607  positioned along a length of handle  605 . 
     In this embodiment, sensor holder  601  includes a coupling component  602  that is positioned (similar to previously discussed embodiments) along a longitudinal edge or perimeter of sensor holder  601 . As with previous embodiments of a sensor holder in accordance with the present invention, sensor holder  601  also includes a substantially flat planar body adapted to receive a sensor for capturing dental images, the planar body defined by a first flat surface and a second flat surface on opposite sides of a single plane (i.e. flat surface  606  is one of such surfaces adapted to receive a sensor such as a radiograph sensor). 
     Coupling component  602  facilitates removably attaching sensor holder  601  to shaft  604   a , and may comprise a tubular member positioned along a longitudinal edge of the planar body of sensor holder  601 , the tubular member including two openings configured to register with the cylindrical protrusion ( 603 ) of shaft  604   a  so that the handle, the shaft, and the longitudinal edge of sensor holder  601  lie in a straight line. In alternative embodiments, where an adapter is implemented or where the shaft is angled or curved (see  FIGS. 5( d )-( f ) , and  FIG. 6( c )  respectively), the sensor holder maybe positioned in either a bitewing vertical configuration or a periapical vertical configuration. 
     As mentioned above, shaft  604   a  includes a substantially cylindrical protrusion  603 , which may have a different circumference than the remaining length of shaft  604   a . For example, and without limiting the scope of the present invention, shaft  604   a  may include an elongated body with a first portion having a first diameter and a first length that predominantly extends from handle  605 , and a second portion having a second diameter and a second length that extends from a terminal end of shaft  604   a  that is opposite of handle  605  and that includes a substantially cylindrical protrusion configured to register with a coupling component of sensor holder  601 . One benefit of this embodiment is that the different circumferences of the elongated body of shaft  604   a , may prevent sensor holder  601  from undesirably sliding too much towards handle  605 . 
     As mentioned above, sensor holder  601  is similar to other embodiments previously discussed, however sensor holder  601  includes an exemplary embodiment of a coupling member wherein a substantially tubular protrusion further includes an opening or longitudinal slit that allows improved flexibility for the component resulting in a tighter fit around the receiving portion of shaft  604   a  (or coupling component  603 ), and to facilitate removal. Spacing B on  FIG. 6( a )  illustrates this opening or slit, and is further described in turn with reference to  FIG. 6( b ) . 
       FIG. 6( b )  depicts a side view of the sensor holder shown in  FIG. 6( a ) , illustrating a view taken along line A. From this view, it can be appreciated that (as in previously discussed embodiments) sensor holder  601  includes an uninterrupted and continuous planar body  608 , having a first flat surface (e.g.  606 ) and a second flat surface (e.g.  609 ) on opposite sides of a single plane. From a terminal end, and along a longitudinal edge of the planar body  608 , coupling component  602  is formed as an elongated tubular protrusion, which extends from an edge of the planar body  608  of sensor holder  601 . In this exemplary embodiment, coupling component  602  includes an opening or slit  610  that comprises a spacing B, which disrupts an otherwise complete circumference formed by the hollow tubular protrusion that forms coupling component  602 . As mentioned above, slit  610  may facilitate removal of sensor holder  601  from protrusion  603 , and in some embodiments, the circumference of coupling component  602  is such that sensor holder  601  may fit tightly and securely around protrusion  603 . 
     Although various embodiments may include different shapes and sizes, in an exemplary embodiment, an inner surface  611  of coupling component  602  may be shaped so as to register with cylindrical protrusion  603  of shaft  604   a . As such, in exemplary embodiments, inner surface  611  may form a substantially polygonal cross-section or perimeter inside coupling component  602  that matches a polygonal cross-section of a coupling component of the shaft. As mentioned above, such polygonal cross-section may comprise a hexagonal cross-section so as to prevent the sensor holder from sliding or slipping, and to allow a patient to easily bite down on a portion of the shaft of the device. 
       FIG. 6( c )  depicts yet another sensor holding apparatus including a shaft configured to position the sensor holder in either a bitewing vertical configuration or a periapical vertical configuration. In this embodiment, rather than requiring an adapter, as disclosed above, shaft  604   b  may be implemented with apparatus  600  to include an elongated body that form a substantially 90-degree curve. Moreover, because sensor  601  may include two openings on either terminal end of coupling component  602 , the sensor may be positioned in a bitewing vertical configuration (as shown) or in a periapical vertical configuration (i.e. by flipping the sensor in the opposite direction). 
     Finally, shaft  604   b  may be constructed of the same material, or a different material as handle  605 . Hence, shaft  604   b  may be constructed of metal, plastic, or any other material that offers durability and stability for holding a sensor. Furthermore, in exemplary embodiments, shaft  604   b  may be constructed of a material that allows shaft  604   b  to be bendable or flexible so that at least a portion of shaft  604   b ; specifically, in exemplary embodiments, the terminal end including cylindrical protrusion  603  may be bendable between and outside of a 180-degree and 90-degree positions so that protrusion  603  may be positioned at a 90-degree angle, straight, or any other angled configuration with respect to handle  605 . 
     Finally, a sensor holder apparatus in accordance with the present invention may implement additional features that are commonly known in the art for purposes of compatibility with other existing components. For example, and without deviating from the scope of the invention, add-on components such as a cone alignment may be implemented, in order to configure the sensor holding apparatus for alignment with imaging apparatus. 
     A sensor holding apparatus has been described. The foregoing description of the various exemplary embodiments of the invention has been presented for the purposes of illustration and disclosure. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching without departing from the spirit of the invention. 
     DESCRIPTION OF THE REFERENCE SYMBOLS 
     
         
           101 : Tooth 
           102 : File 
           103 : Clamp 
           104 : Rubber dam 
           105 : Rubber dam frame 
           200 : Sensor holding apparatus 
           201 : Handle 
           202 : Cable groove 
           203 : Shaft 
           204 : First coupling component 
           205 : Sensor holder 
           206 : Second coupling component 
           207 : Sensor 
           208 : Sensor cable 
           300 : Sensor holding apparatus 
           301 : Handle 
           302 : Adapter 
           303 : Shaft 
           304 : Sensor Holder 
           305 : Shaft cross-section 
           310 : End 
           311 : End 
           400 : Sensor holding apparatus 
           401 : Sensor Holder 
           402 : Coupling component 
           403 : Coupling component 
           404 : Shaft 
           405 : Handle 
           406 : Connectors 
           500 : Sensor holding apparatus 
           501 : Sensor Holder 
           502 : Coupling component 
           503 : Coupling component 
           504 : Shaft 
           505 : Handle 
           506 : Flat surface 
           507 : Cable groove 
           508 : Adapter 
           600 : Sensor holding apparatus 
           601 : Sensor holder 
           602 : Coupling component 
           603 : Coupling component 
           604   a : Shaft 
           604   b : Shaft 
           605 : Handle 
           606 : Flat surface 
           607 : Cable groove 
           608 : Planar body 
           609 : Flat surface 
           610 : Slit 
           611 : Inner surface