Please select the most similar patent number from A, B, C and D. Which number is?
Disclosed are a surgical guide plate and a preparation method therefor. The preparation method comprises the following steps: a) bonding a radiation-blocking material onto an oral mucosa, and putting on an occlusal rim; b) carrying out CBCT photographing to acquire CBCT data carrying information of the radiation-blocking material; c) acquiring STL data of an oral cavity surface; d) matching the CBCT data with the STL data; e) loading occlusal rim data; f) carrying out intelligent tooth arrangement; and g) designing an implant, and generating a surgical guide plate. By means of the preparation method, the level of comfort of a patient can be increased, preparatory processes are reduced, a radiation guide plate does not need to be made, the number of return visits is reduced, the clinical medical cost is reduced, the precision of a surgical guide plate is increased, the software design time is reduced, and the treatment experience is improved.
A: A guide plate body (100, 401) of a surgical guide plate is provided with at least one bone binding surface (101), and the surgical guide plate further comprises a navigation tracing surface (200, 403), wherein the navigation tracing surface (200, 403) is arranged on the surface of the guide plate body (100, 401) or is arranged on a navigation tracing carrier (402); and the navigation tracing carrier (402) is arranged on the guide plate body (100, 401). A construction method and manufacturing method for a three-dimensional model of the surgical guide plate, and a corresponding computer device and storage medium are further disclosed. The construction method comprises: firstly acquiring image data of a bone to be operated on for three-dimensional reconstruction of the bone so as to obtain a three-dimensional model of the bone; then designing a surgical guide plate model according to the three-dimensional model of the bone; and printing the surgical guide plate by means of a 3D printing technique. The bone binding surface (101) of the surgical guide plate completely matches a bone structure surface (302) to be operated on, such that the surgical guide plate and the navigation tracing surface (200, 403) of the surgical guide plate can be stably fixed to a complex bone structure, and a navigation tracer and the 3D printing surgical guide plate are combined into a whole, thereby meeting the high-efficiency, accuracy and personalization requirements for the treatment.
B: The present disclosure provides a guide plate design method for a total hip replacement and a related device, the method comprising: determining a corresponding three-dimensional image on the basis of medical image data of a target part, and selecting a fitting prosthesis model from a prestored total hip joint prosthesis database; generating a simulation guide plate that fits the prosthesis model, and obtaining guide plate design data; and using the guide plate design data for the processing and fabrication of a total hip joint prosthesis. The guide plate design method for a total hip joint replacement provided in the present disclosure reduces the design difficulty of an artificial total hip joint guide plate, shortens the design period of the guide plate, significantly improves the production efficiency of guide plates used in artificial total hip replacement surgery, assists surgeons to more precisely and more efficiently complete an operation, and further improves clinical effects.
C: Disclosed is a digital intraoral impression system, comprising: an intraoral impression scanner (5) and an intraoral scanning guide plate, wherein the intraoral scanning guide plate comprises a fixing device (3) and a rigid guide plate (1), the rigid guide plate (1) is provided with a scanning guide face, and the scanning guide face is provided with a guide mark; and the fixing device (3) is provided with a connector connected to the internal structure of an oral cavity and used for fixing the rigid guide plate (1) inside the oral cavity. Further disclosed is a method for acquiring a digital intraoral impression by using the digital intraoral impression system, so that intraoral impression data without accumulated measurement error can be acquired, satisfying the requirements of subsequent design and processing, and improving the precision of the digital intraoral impression.
D: Provided are a tooth occlusion control handpiece guide plate and a manufacturing method therefor, the guide plate comprising an upper base (1) which is controlled by upper teeth, upper alveolar bones or mucosas, and a lower base (2) which is controlled by lower teeth, lower alveolar bones or mucosas, wherein a supporting body (3) is arranged between the upper base (1) and the lower base (2), and the supporting body (3), the upper base (1) or the lower base (2) is provided with a control mechanism for positioning and guiding an implantation handpiece; when in use, the guide plate is placed between upper teeth and lower teeth of a patient, and is subjected to occlusion fixation respectively with the upper base and the lower base through the upper teeth and the lower teeth; and then the handpiece is placed in the control mechanism which is set according to implantation data, enabling the handpiece to move in the direction of the control mechanism to the alveolar bones during implantation drilling. The guide plate performs guiding and positioning on the handpiece, improving the precision of positioning and guiding, the guide plate is prevented from directly contacting a drill bit rotating at a high speed, the heating value of the drill bit will not be increased in addition. The guide plate can be fixed simply by occlusion of a patient, thereby without the need for multiple people operating, reducing the difficulty of a tooth implantation operation.
Answer: D