Source: https://patents.google.com/patent/KR102039010B1/en
Timestamp: 2020-01-28 07:14:50
Document Index: 251701154

Matched Legal Cases: ['art.\n1', 'art 20', 'art 30', 'art 30', 'art 30', 'art 20', 'art 30', 'art 30', 'art 20', 'art 20', 'art 30', 'art 60', 'art 42', 'art 20', 'art 30', 'art 42', 'art 20', 'art 60', 'art 42', 'art 42', 'art 60', 'art 20', 'art 20', 'art 20', 'art 60', 'art 30', 'art 70', 'art 70', 'art 60', 'art 30', 'art 70', 'art 20', 'art 70', 'art 41', 'art 70', 'art 60', 'art 70', 'art 70', 'art 41', 'art 30', 'art 70', 'art 12', 'art 12', 'art 13', 'art 12', 'art 12', 'art 13', 'art 13', 'art 20', 'art 13', 'art 30', 'art 13', 'art 31', 'art 12', 'art 12', 'art 41', 'art 20', 'art 30', 'art 30', 'art 20', 'art 14', 'art 20', 'art 30', 'art 13', 'art 30', 'art 13', 'art 13', 'art 30', 'art 30', 'art 30', 'art 40']

KR102039010B1 - angular abutment for denture - Google Patents
angular abutment for denture Download PDF
KR102039010B1
KR102039010B1 KR1020170093298A KR20170093298A KR102039010B1 KR 102039010 B1 KR102039010 B1 KR 102039010B1 KR 1020170093298 A KR1020170093298 A KR 1020170093298A KR 20170093298 A KR20170093298 A KR 20170093298A KR 102039010 B1 KR102039010 B1 KR 102039010B1
KR1020170093298A
KR20190010974A (en
2017-07-24 Application filed by 주식회사 디오 filed Critical 주식회사 디오
2017-07-24 Priority to KR1020170093298A priority Critical patent/KR102039010B1/en
2019-02-01 Publication of KR20190010974A publication Critical patent/KR20190010974A/en
2019-10-31 Publication of KR102039010B1 publication Critical patent/KR102039010B1/en
In order to stably install the prosthesis in the oral cavity, the present invention in the inclined abutment formed with a fastening passage to connect the prosthesis and the fixture, the fastening passage is formed corresponding to the predetermined first extension direction and the first fixed A first fastening tube portion having a first opening portion into which the means is inserted, and a second extension direction inclined at a first angle preset with respect to the first extension direction, and a second fixing means to be screwed; An opening of the second fastening pipe part, the second fastening pipe part being opposed to an entry direction of the first fastening means so as to be recessed in correspondence to the insertion path of the first fastening means; It provides a sloped abutment characterized in that the clearance pocket groove portion is formed in the connection portion.
Angular abutment for denture
The present invention relates to an inclined abutment, and more particularly, to an inclined abutment for stably installing a prosthesis in the oral cavity.
Generally, dentures or prostheses refer to intraoral periodontal tissue that artificially restores appearance and function by replacing missing teeth.
In detail, when left in a state where natural teeth are lost, distortion of the teeth occurs in the adjacent teeth and the opposing teeth of the missing tooth, resulting in deformation of the facial shape, and deterioration of chewing function, which is inconvenient for everyday life. In addition, when the state of loss of natural teeth lasts for a long time, the alveolar bone surrounding the missing tooth is absorbed into the body, which makes it difficult to install artificial periodontal tissue.
At this time, the denture or prosthesis may be installed inside the oral cavity to restore the chewing function and to prevent deformation of the periodontal tissue, and may be divided into partial / complete denture and partial / complete prosthesis according to the number of missing teeth.
On the other hand, the denture is installed to be bonded to the surface of the gum by applying a dental adhesive to the inner surface side groove, the prosthesis may be installed through a fixture placed in the alveolar bone. At this time, the denture causes deformation of the gum or a large amount of foreign body as it is supported on the outer surface of the gum. Recently, the amount of prosthetics supported by the alveolar bone is increased.
In detail, a plurality of fixtures capable of supporting the prosthesis are implanted in the gum at predetermined intervals along the arch, and the abutment is coupled to the upper end. The prosthesis is provided with a fastening part fixed to the upper end of the abutment at a position corresponding to each upper end of the abutment. In this case, the fastening part may be provided as a support cylinder which is arranged to penetrate in the vertical direction corresponding to each position of the abutment, or may be formed as a fastening groove recessed in the vertical direction corresponding to the upper end profile of the abutment. That is, the prosthesis may be installed in the oral cavity as the upper end of the abutment is substantially interpolated and fixed by the fixing means.
On the other hand, the fixture corresponding to the anterior side of the gum is implanted in a vertical direction substantially corresponding to the forming direction of the fastening portion. On the other hand, a portion corresponding to the posterior side of the gum is particularly lower in the lower jaw, the lower end of the fixture is placed in the lower jaw nerve when the fixture is placed in the vertical direction as the lower jaw nerve passes on both sides of the jaw. Serious problems arise from the nerves that come in contact with the nerves.
Thus, the fixture corresponding to the posterior side of the gum is implanted inclined at a predetermined angle, whereby the fastening angle formed on the prosthesis and the fastening angle of the fixture are formed differently. Thus, a portion of the prosthetic abutment that satisfies and simultaneously mediates the placement angle of the fixture and the formation angle of the fastening portion has been disclosed.
In detail, a conventional prosthetic abutment includes a coupling protrusion coupled to an upper end of the fixture, a margin portion provided on an upper side of the coupling portion, and provided inside the soft tissue of the gum, and inclined to an upper side of the margin portion. It includes a coupling portion coupled to.
At this time, a first through hole is formed corresponding to the central axis of the coupling protrusion so that the first fastening bolt for fastening with the fixture is inserted. In addition, a second through hole corresponding to the extending direction of the coupling part is formed to be inclined at a different angle from the first through hole so that the second fastening bolt for fastening with the fastening part is inserted.
Here, the conventional prosthetic abutment has a central portion of the coupling portion as the first through hole penetrates substantially vertically in the longitudinal direction of the prosthetic abutment in order to minimize interference when the first fastening bolt is fastened. It is provided to penetrate the side portion at the same time. Therefore, as one side of the second through hole is substantially included in the first through hole, an area in which the second fastening bolt can be fixed is relatively narrowly formed.
As a result, damage or breakage may occur due to the rotational force applied during the fastening of the second fastening bolt or the chewing pressure applied during repeated chewing while the prosthesis is installed in the oral cavity. do. Due to this, the fixed state of the prosthesis is poor, which is inconvenient in daily life, especially when the second fastening bolt is separated from the second through-hole, the prosthetic subject swallows it or is inserted into the airway, causing serious personal injury. There was a problem.
Korean Patent Publication No. 10-2013-0084387
In order to solve the above problems, the present invention is to provide an inclined abutment for stably installing the prosthesis in the oral cavity.
In order to solve the above problems, the present invention in the inclined abutment formed with a fastening passage to connect the prosthesis and the fixture, the fastening passage is formed corresponding to the predetermined first extension direction and the first fixing means is inserted A first fastening pipe part having an opening to be opened, and a second opening part formed so as to correspond to a second extension direction inclined at a first angle predetermined with respect to the first extension direction, and the second fixing means being screwed to the opening; A first fastening pipe part and the first fastening part opposite to an entry direction of the first fastening means entered through the first opening so that the second fastening pipe part is recessed corresponding to the insertion path of the first fastening means; A clearance pocket groove is formed in the connection portion between the two fastening pipes, and the first fixing means has the other end of the extension portion extending from the radially extending head portion of one end portion at the upper end of the fixture. It is provided with a bolt that is fastened, the clearance pocket groove portion is an outer peripheral side of the extension portion of the first fixing means inclined to enter the first opening portion corresponds to one side adjacent to the second opening portion of the edge of the first opening portion, When the outer circumferential side of the extension portion is in contact with the other side of the edge of the first opening portion, the other end of the extension portion is set so as to be spaced apart from the inner surface of the clearance pocket groove portion so that the insertion path is inserted while being rotated toward the lower end side of the first fastening pipe portion. It provides an inclined abutment characterized in that the recess is formed to be rounded so that a free space corresponding to the rotational trajectory is formed.
Here, the other end of the extension portion when one side of the head portion of the first fixing means is in contact with one side adjacent to the second opening portion of the edge of the first opening portion and the outer peripheral side of the extension portion is in contact with the other side of the edge of the first opening portion Is preferably set to be spaced apart from the inner peripheral surface of the lower end side of the first fastening pipe.
The stepped protrusion may be formed between the clearance pocket groove portion and the lower end portion of the first fastening tube portion in a radially inward direction to lock the head portion.
On the other hand, a third fastening pipe portion corresponding to the third extending direction inclined at a second angle preset with respect to the first extension direction is formed on the opposite side of the second fastening pipe portion, and the opening of the third fastening pipe portion is Corresponding to the first opening, the end portion of the third fastening pipe is preferably corresponding to the clearance pocket groove.
In this case, the first extension direction corresponds to the longitudinal direction of the fixture, the second extension direction preferably corresponds to the extension direction of the fastening groove portion formed perpendicular to the prosthesis.
In addition, the lower end includes a coupling protrusion coupled to the upper end of the fixture, the upper end of the coupling protrusion is provided with a margin portion formed so that the upper surface is perpendicular to the second extension direction, and the coupling portion extending from the upper surface portion of the margin portion The coupling protrusion may be formed coaxially with the first extension direction, and the coupling part may be formed coaxially with the second extension direction, and the outer surface thereof is formed to correspond to the inner circumferential profile of the coupling groove part.
In addition, the second opening is preferably formed in the upper surface portion of the coupling portion, the first opening is preferably formed so as to be inclined opening toward the side of the side of the coupling portion facing the second opening.
In addition, the outer circumferential surface of the coupling protrusion is formed with hexa protrusions are formed in the hexa groove formed on the inner circumferential surface of the upper end of the fixture, the outer peripheral surface of the coupling portion at least one surface is formed with a discontinuous alignment surface portion corresponding to the outer surface of the hexa protrusion desirable.
Through the above solution, the inclined abutment according to the present invention provides the following effects.
First, an area of one side of the inner circumferential surface of the second fastening pipe part adjacent to the first opening part while being spaced apart from the opening of the second fastening pipe part formed to be inclined at a predetermined angle and penetrating therethrough is opposite to the first fastening part. Fastening stability can be remarkably improved because it extends to a sufficient area to be screwed firmly with the thread of the screw.
Second, even though the inclined first opening is penetrated at a different angle from the lower end side of the first fastening pipe part as the clearance pocket grooves are formed in the connection portions of the fastening pipe parts corresponding to the insertion direction of the first fixing means. When the insertion of the first fixing means and the fastening mechanism extending in the length of the free space can be secured to avoid interference can be significantly improved the ease of operation in the fastening process.
Third, the second fixing means is provided with a thin metric thread of which the pitch spacing of the thread is dense substantially, so that the screw contact area with the second fastening pipe portion is further increased and firmly fixed, so that even if the prosthesis is used for a long time, It can be prevented from being broken or from loosening due to loosening of the screw fastening part.
1 is an exemplary view showing a state in which the inclined abutment is installed in the fixture according to an embodiment of the present invention.
Figures 2a and 2b is a perspective view as seen from one side and the other direction of the inclined abutment according to an embodiment of the present invention.
3 is a cross-sectional view of the inclined abutment in accordance with an embodiment of the present invention.
Figures 4a and 4b is a cross-sectional view showing a state in which the first fixing means is fastened to the inclined abutment according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a state in which the inclined abutment and the prosthesis are fixed according to an embodiment of the present invention.
6 is an exemplary view showing a state in which the inclined abutment is installed in the fixture according to an embodiment of the present invention.
Hereinafter, an inclined abutment according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
On the other hand, Figure 1 is an exemplary view showing a state in which the inclined abutment is installed in the fixture according to an embodiment of the present invention.
As shown in Figure 1, the fixture (f) to the alveolar bone (1) to fix the prosthesis (300 of Figure 5) to replace the natural tooth in the oral cavity of the teeth or partial dentifrice patients most of the natural teeth are missing Is implanted and an abutment is provided to mediate the fixture (f) and the prosthesis (300 of FIG. 5).
Here, on the anterior side, the fixture (f) can be placed substantially perpendicular to the alveolar bone, but especially on the posterior side of the lower jaw, the fixation to prevent damage due to contact or pressure with the lower alveolar nerve (4). The chur f is inclined at a predetermined angle. And, the inclined abutment 100 according to the present invention is fixed to the upper end of the fixture (f) is inclined to be implanted at a predetermined angle to the alveolar bone (1).
In detail, the lower end side of the inclined abutment 100 extends corresponding to the longitudinal direction of the fixture f, and the upper end side is a fastening groove part (302a of FIG. 5) formed perpendicular to the prosthesis (300 of FIG. 5). It is formed to correspond to the extending direction of.
Therefore, even if the fixture f is inclined to the alveolar bone 1, the extension direction of the upper end of the abutment a and the inclined abutment 100 connected to the prosthesis 300 of FIG. Substantially corresponds. Through this, the fastening operation is easy when fixing the prosthesis (300 of FIG. 5) inside the oral cavity, and as a result, the functional and aesthetic satisfaction of the patient can be improved.
2A and 2B are perspective views of one side and the other side of the inclined abutment according to the exemplary embodiment of the present invention, and FIG. 3 is a cross-sectional view of the inclined abutment according to the exemplary embodiment of the present invention. 4A and 4B are cross-sectional views illustrating a state in which a first fixing means is fastened to an inclined abutment according to an embodiment of the present invention, and FIG. 5 is an inclined abutment according to an embodiment of the present invention. A cross-sectional view showing the state in which the treatment and the prosthesis are fixed.
As shown in Figures 2a to 5, the inclined abutment 100 is formed with a fastening passage for inserting or fastening the respective fixing means (40, 50) to connect the prosthesis 300 and the fixture (f) do. In this case, the fastening passage preferably includes a first fastening pipe part 20 and a second fastening pipe part 30.
Here, the first fastening pipe portion 20 is formed corresponding to the predetermined first extension direction e1 and the first opening 21 into which the first fastening means 40 is inserted is opened.
On the other hand, the first fixing means 40 is a bolt in which the other end 43 of the extension portion 42 extending from the radially extending head portion 41 of one end is fastened to the upper end of the fixture (f) It is provided with. In addition, the first fastening pipe portion 20 is formed in a hollow having an inner circumferential diameter exceeding the outer circumferential diameter of the head portion 41. At this time, the other end portion 43 of the first fixing means 40 is formed with a screw thread can be screwed to the inside of the upper end of the fixture (f). In addition, although not shown in the drawings, the head portion 41 of the first fixing means 40 has an end portion of a fastening mechanism for providing a rotational force so that the other end portion 43 is screwed to the upper end of the fixture f. Rotating grooves may be formed.
Furthermore, the first fastening means 40 is the first fastening that the other end 43 of the extension portion 42 is screwed into the upper end of the fixture (f), the head 41 is described later It is caught by the stepped protrusion 23 protruding along the inner circumferential surface of the pipe 20. In this case, the stepped protrusion 23 is formed at the longitudinal center portion of the first fastening pipe 20 so that the inclined abutment 100 and the fixture f can be restrained stably. Fixing means 40 may be extended to a length that can connect the inside of the upper end of the step projection 23 and the fixture (f).
The second fastening pipe part 30 is formed in correspondence with the second extension direction e2 inclined at a first angle d1 with respect to the first extension direction e1, and the second fixing means 50 is formed. The second opening 31 through which the end of the door enters is formed as an open through hole. Therefore, the fastening passage may be provided in a shape in which the second fastening pipe part 30 is branched and penetrated to one side of the first fastening pipe part 20.
At this time, the second fixing means 50 is provided with a head portion 51 extending radially in one end portion and a screw thread screwed to the inner circumferential surface 32 of the second fastening pipe portion 30 on the other end side ( 52) is formed. In addition, a coupling groove portion may be formed at the center portion of the head portion 51 in which an end portion of a fastening mechanism for providing a rotational force to be fastened to the second fastening tube portion 50 is fastened to the second fastening tube portion 30. The second fixing means 50 enters from an upper side of the fastening groove 302a formed in the prosthesis 300, and the screw thread 52 is formed on the inner circumferential surface 32 of the second fastening pipe part 30. As the screw is fastened to the screw groove 32a, the prosthesis 300 may be fixed to the upper side of the inclined abutment 100.
On the other hand, the first opening 21 and the second opening 31 may be formed to open in the opposite direction. At this time, the first opening 21 is secured to the inner circumferential surface 32 of the second fastening pipe part 30 so as to secure a sufficient area for screwing the thread 52 of the second fixing means 50. Preferably, the two openings 31 are spaced apart from each other at predetermined intervals. To this end, the horizontal spacing (w2) between the one side and the other side of the edge of the first opening 21 is preferably formed smaller than the inner circumferential diameter of the first fastening pipe portion (20). Therefore, the first fixing means 40 may be inserted into the first fastening pipe part 20 through the first opening 21 and may be inclined inclined.
Here, the first fastening pipe part 20 and the second fastening pipe part 30 which face the entrance direction of the first fastening means 40 to be recessed in correspondence to the insertion path of the first fastening means 40. It is preferable that the clearance pocket groove part 60 is formed in the connection part between them.
At this time, the clearance pocket groove portion 60 is inserted while the other end portion 43 of the first fixing means 40 to be inclined to the first opening 21 is rotated toward the lower end side of the first fastening pipe portion 20. It is preferably formed corresponding to the rotational track r1 of the insertion path.
In addition, referring to FIG. 4A, when the first fixing means 40 enters through the first opening 21, an outer circumferential side of the extension part 42 is formed in the second of the edges of the first opening 21. It is disposed to correspond to one side 21a adjacent to the opening 31. At this time, the clearance pocket groove portion 60 is the other end portion of the extension portion 42 in the state that the outer peripheral side of the extension portion 42 is supported in contact with the other side (21b) of the edge facing of the first opening 21 ( 43 may be set to be spaced apart from the inner surface of the clearance pocket groove 60. Therefore, the inner surface of the clearance pocket groove portion 60 may be set to more than the rotation trajectory (r1) of the other end portion 43 of the first fixing means (40).
At this time, the inner surface of the clearance pocket groove portion 60 is formed so that the other end portion 43 side of the first fixing means 40 is recessed to correspond to the above-described rotation trajectory (r1), the outer periphery of the extension portion 42 Even if the other side is rotated while being supported in contact with the other side 21b of the edge of the first opening 21, interference with the inner circumferential surfaces of the fastening passage first fastening pipe part 20 and the second fastening pipe part 30 can be avoided. .
In addition, referring to FIG. 4B, the other outer peripheral side of the extension part 42 of the first fixing means 40 is supported by the other side 21b of the edge of the first opening 21 to rotate according to the rotational track r1. While one side of the head portion 41 of the first fixing means 40 is in contact with one side 21a of the edge of the first opening 21. At this time, the inclined abutment 100 is rotated in the state in which the extension 42 of the first fixing means 40 is supported in contact with the other side 21b of the first opening 21. The end 43 may be set to be spaced apart from an inner circumferential surface of the first fastening pipe part 20 by being separated from the inner side of the clearance pocket groove part 60.
That is, the inclined abutment 100 has the other end portion 43 of the extension part 42 in the clearance pocket in a state where the first fixing means 40 is inclined through the first opening 21. The inner peripheral side of the extension part 42 is disposed inside the groove part 60 and is supported by the other edge 21b of the first opening 21 to be rotated. In this case, as the clearance pocket groove 60 is formed in the connection portion between the first fastening pipe portion 20 and the second fastening pipe portion 30 opposite to the entry direction of the first fixing means 40, The other end portion 43 of the first fixing means 40 is formed with a free space that can be rotated to the lower end side of the first fastening pipe portion 20. Accordingly, in the process of inserting the first fastening means 40 into the first fastening pipe part 20, the first fixing means 40 extending to a length capable of connecting the inner side of the upper end of the fixture f and the stepped protrusion 23. Since the entry into the first fastening pipe part 20 and the operation radius are increased, the ease of operation can be significantly improved.
In addition, the clearance pocket groove 60 is formed recessed in a direction facing the first opening 21 so that a predetermined distance between the first opening 21 and the inner surface of the clearance pocket groove 60 ( w3) can be secured. Therefore, the free space in which the fastening mechanism for fastening the first fastening means 40, the first fastening means 40, and the first fastening means 40 can be significantly increased.
That is, even when the first fixing means 40 is inclined to the inside of the first opening 21, the other end portion 43 of the first fastening pipe part 20 passes through the clearance pocket groove part 60. It is moved to the lower end side. Therefore, the head portion 41 may be prevented from interfering with the first opening 21 or the other end portion 43 from interfering with the stepped protrusion 23. In addition, as the insertion and manipulation space of the fastening mechanism for fastening the first fixing means 40 to the fixture f is substantially secured, the fastening stability may be significantly improved.
Moreover, the clearance pocket groove portion 60 is preferably formed to be recessed to the inner surface round. That is, the inner surface of the clearance pocket groove portion 60 is rounded in response to the rotational trajectory r1 in which the other end portion 43 of the first fixing means 40 is rotated toward the lower end side of the first fastening pipe portion 20. As the fork is formed, the operation convenience can be further improved by preventing each end from being caught by the first fixing means 40 and entering the first fastening means 40 and operating the fastening mechanism.
In addition, between the clearance pocket groove portion 60 and the lower end of the first fastening pipe portion 20 is protruded in the radially inward direction from the inner circumferential surface 22, the head portion 41 of the first fixing means 40 is locked. Preferably, the stepped protrusions 23 are formed.
Here, the inner circumferential diameter of the stepped protrusion 23 is smaller than the outer circumferential diameter of the head portion 41 and is larger than the outer circumferential diameter of the thread formed on the extension portion 42 and the other end portion 43. Therefore, when the other end 43 of the first fixing means 40 is screwed to the upper end of the fixture f, the lower surface of the head 43 is pressed against the stepped protrusion 23 while being restrained. Accordingly, the inclined abutment 100 may be fixed to the upper end of the fixture f.
In this case, the stepped protrusion 23 may have an upper surface portion corresponding to a lower surface of the head portion 41, and a lower surface portion may be formed as a conical extending surface continuously extending below the inner circumferential surface of the first fastening pipe portion 20. Therefore, the contact area between the lower surface of the head portion 41 and the upper surface portion of the stepped protrusion 23 may be increased, and thus fixing force may be improved by pressing, and the first insertion pipe portion 20 may be inserted into the first fastening pipe portion 20. Fastening stability can be improved by preventing the other end 43 of the fixing means 40 from interfering with the stepped protrusion 23. In addition, as the overall thickness of the stepped protrusion 23 is increased, durability against pressing force applied when the first fixing means 40 is fastened may be improved.
Furthermore, a third fastening pipe part corresponding to the third extension direction e3 inclined at a second angle d2 which is set in the second extending direction e1 on the opposite side of the second fastening pipe part 30 ( 70) can be formed. Here, the opening of the third fastening pipe part 70 may correspond to the first opening 21, and the end of the third fastening pipe part 70 may be formed to correspond to the clearance pocket groove part 60. That is, the fastening passage is branched so that the end portions of the second fastening pipe part 30 and the third fastening pipe part 70 communicate with one side of the first fastening pipe part 20 to be substantially 'Y' shaped passages. It may be formed as.
At this time, the third fastening pipe part 70 is formed to be inclined at an acute angle corresponding to the second angle (d2) of the inner peripheral diameter (w1) exceeds the outer peripheral diameter of the head portion 41 of the first fixing means (40) do. Therefore, the first fixing means 40 can be easily inserted even when the horizontal gap w2 between the one side and the other side of the first opening 21 is smaller than the outer circumferential diameter of the head part 41.
In addition, the third fastening pipe part 70 is formed substantially coaxially with the clearance pocket groove part 60. Accordingly, when the first fixing means 40 enters through the first opening 21, the first fixing means 40 is guided along the inclined inner circumference of the third fastening pipe part 70 so that the other end 43 is the clearance pocket groove part. It may be naturally arranged inside the 60. In this way, since the operation convenience of the fastening mechanism for fastening the first fixing means 40 and the first fixing means 40 is remarkably improved, the inclined abutment 100 is connected to the fixture f. Fast and accurate tightening is possible.
In addition, as the outer circumference of the third fastening pipe part 70 is formed to be inclined in correspondence to the insertion direction of the first fixing means 40, the first fixing means 40 is rotated and the head part 41 is operated. After contacting the one side 21a of the edge of the first opening 21 may be formed a clearance gap that can be inserted into the first fastening pipe 20. This prevents interference with the first opening 21 or the inner circumferential surface of the fastening passage when entering and inserting the first fastening means 40 and the fastening mechanism extending to a predetermined length, thereby providing more convenience during fastening operation. Can be improved.
Further, the second extending direction e2 and the third extending direction e3 in which the second fastening pipe part 30 and the third fastening pipe part 70 face each other in correspondence with the first extending direction e1. As it is penetrated inclined by), the first opening 21 and the second opening 31 may be spaced apart at predetermined intervals. Therefore, since one side of the inner circumferential surface of the second fastening pipe portion 30 is extended to secure a sufficient area for screwing the second fixing means 50, the state in which the second fixing means 50 is fixed is more firm. Can be maintained.
On the other hand, the first extension direction (e1) corresponds to the longitudinal direction of the fixture (f), the second extension direction (e2) of the fastening groove portion 302a formed perpendicular to the prosthesis 300 It is preferable to correspond to the extension direction. Therefore, the predetermined first angle d1 may be set to an acute angle corresponding to the angle between the inclined insertion direction of the fixture f and the extension direction of the fastening groove 302a. For example, the first angle d1 may be set to have an angle value of 20 ° to 30 °, calculated from an average value for various mandibular sizes and lower alveolar nerve positions of the subject.
Further, referring to FIGS. 2A to 5, the inclined abutment 100 includes a coupling protrusion 11 having a lower end coupled to an upper end of the fixture f and an upper end of the coupling protrusion 11. And a margin part 12 provided with an upper surface part 12a orthogonal to the second extension direction e2, and a coupling part 13 extending from the upper surface part 12a of the margin part 12. It is provided.
In this case, the coupling protrusion 11 is formed coaxially with the first extension direction e1, and the coupling part 13 is formed coaxially with the second extension direction e2, but the coupling groove 302a It may be formed to have an outer surface profile corresponding to the inner profile. That is, the coupling part 13 is provided in an inclined shape corresponding to the coupling protrusion 11 and the predetermined first angle d1.
Accordingly, the first fastening pipe part 20 penetrates along the longitudinal center portion of the coupling protrusion 11, and the first opening 21 opens to the outside of the inclined side portion 13c of the coupling part 13. It is formed to be. The second fastening pipe part 30 penetrates along the center portion in the extending direction of the coupling part 13, and the second opening part 31 is substantially parallel to the upper surface part 12a of the margin part 12. It is formed to be open to the upper surface portion 13b side of the coupling portion (13).
At this time, the first fixing means 40 is inclined to enter through the first opening 21, but penetrates through the first fastening pipe 20, the other end 43 is the upper end of the fixture (f) Screw is fastened. In addition, the inclined abutment 100 is firmly fixed to the fixture f as the head part 41 of the first fixing means 40 is pressed and restrained by the step protrusion 23. . In addition, the second fixing means 50 is entered from the upper side of the coupling groove 302a, the thread 52 formed on the other end of the screw groove 32a formed on the inner peripheral surface 32 of the second fastening pipe portion 30 As the screw is fastened to the), the state in which the prosthesis 300 is fixed in the oral cavity may be stably maintained.
Furthermore, the first fastening pipe part 20 and the second fastening pipe part 30 are formed in the penetrating direction, that is, the extending directions e1 and e2 are different from each other, but the fastening directions of the respective fixing means 40 and 50 are different. Is formed to substantially correspond to the extending direction of each of the fastening pipes (20, 30). Therefore, the thicknesses of the prostheses 300, the fixtures f and the inclined abutments 100 to which the respective fixing means 40 and 50 are fastened may be substantially constant. As a result, the coupling force between the components due to the pressing force applied when the screw is fastened and the support strength for the pressing force can be improved, thereby significantly improving durability.
On the other hand, the first opening 21 and the second opening 31 is formed so as to open in a mutually opposite direction, the reinforcement body portion 14 for dividing the first opening 21 and the second opening 31 Is preferably formed. Here, the reinforcing body portion 14 substantially corresponds to the corner where the upper surface portion 13b and the side portion 13c of the coupling portion 13 is connected, in particular, the first opening 21 and the second opening It is preferable to understand as a part between (31).
In detail, the second fastening pipe part 30 is penetrated so as to communicate with the first fastening pipe part 20, and is formed to be inclined corresponding to the second extension direction e2 corresponding to the first angle d1. One side of the inner circumferential surface 32 is formed to have an area smaller than the other side. At this time, as the first opening 21 is formed to be inclined in the opposite direction to the second opening 31, the volume of the reinforcing body portion 14 is relatively increased, the inner peripheral surface of the second fastening pipe portion 30 One side area, that is, the inner space L1 of the reinforcement body part 14 may be extended.
Furthermore, the intersection point x of the center of the first fastening pipe part 20 and the second fastening pipe part 30 is the inclined abutment 100 so that the overall size of the inclined abutment 100 is compactly formed. ) Is set in the longitudinal center portion or above. In this case, as the openings 21 and 31 are inclinedly opened in opposite directions to each other, the intersection point x is formed at the above-described position so that the gap between the outermost ends of the inclined abutment 100 is set to the minimum. The reinforcement body 14 may be formed to have a sufficient volume.
Therefore, even if the prosthesis 300 is used for a long time as the screw groove section through which the screw thread 52 of the second fixing means 50 is screwed into the reinforcing body portion 14 is extended. The second fixing means 50 may be firmly fixed. Here, the inner side of the reinforcing body portion 14 substantially corresponds to one side of the inner circumferential surface of the second fastening tube portion 30, and the outer side of the reinforcing body portion 14 to be described later is the coupling portion 13 It is preferable to understand the part corresponding to the side part 13c.
At this time, the second fixing means 50 is provided with a fine metric screw thread pitch interval p1 of the screw thread 52 is formed in a 0.2 ~ 0.25 length interval with respect to the inner space (L1) of the reinforcing body portion 14 Can be. That is, as the pitch interval of the screw grooves 32a formed on the screw thread 52 of the second fixing means 50 and the inner circumferential surface 32 of the second fastening pipe portion 30 is densely formed, the screw fastening area As this increases, it can be fixed more firmly.
In addition, since the area of the reinforcing body portion 14 corresponding to the inner surface of the fastening groove 302a also increases, the fixed state of the prosthesis 300 and the inclined abutment 100 may be more stably supported. Can be.
At this time, as the intersection point x is set to the longitudinal center portion or the upper side of the inclined abutment 100, even if the coupling portion 13 extends longer than the conventional abutment and the conventional abutment. It may be formed in a substantially corresponding size. Accordingly, the reinforcing body portion contacting the inner space L1 of the reinforcing body portion 14 to which the screw thread 52 of the second fixing means 50 is screwed and the inner surface of the fastening groove portion 302a ( The outer surface area of 14 may be further increased. By doing so, the oblique abutment 100 is compact, but the screw fastening area which can be firmly fixed to the second fastening member 50 to the second fastening pipe part 30 is further expanded because of the prosthesis ( 300 and the fall of the second fixing means 50 may be prevented.
Furthermore, even though the openings 21 and 31 are opened in opposite directions so that the fixing means 40 and 50 are inserted into and coupled to the upper surface portion 13b and the side portion 13c of the coupling portion 13, The substantially conical outer profile of the coupling 13 can be maintained. Thus, even if the inner profile of the fastening groove 302a is not complicated and precisely designed, the fastening groove 302a can be easily manufactured in a shape substantially matching the outer surface of the coupling part 13 based on one simple conical design information. .
On the other hand, Figure 6 is an exemplary view showing a state in which the inclined abutment is installed in the fixture according to an embodiment of the present invention.
As shown in Figure 6, the outer circumferential surface of the coupling protrusion 11 is formed with a hexa protrusion (11a) is formed in the hexa groove (fa) formed on the inner surface of the upper end of the fixture (f). Therefore, the coupling direction of the inclined abutment 100 can be easily determined in a simple manner in which the hexa-protrusion 11a is coupled to match the hexa groove fa, and the inclined abutment 100 is arbitrarily selected. It can constrain the rotation.
In addition, it is preferable that at least one surface of the coupling portion 13 is formed with a discontinuous alignment surface portion 13a corresponding to the outer surface of the hexa protrusion 11a. Here, it is preferable that the outer circumferential surface of the coupling portion 13 substantially corresponds to the side portion 13c of the coupling portion 13. That is, even if the coupling protrusion 11 is inserted and covered inside the upper end of the fixture f, the discontinuous alignment surface part 13a is visually checked to facilitate the fastening direction of the inclined abutment 100. It can be judged so that the installation convenience can be significantly improved.
Here, the discontinuous alignment surface portion 13a may be provided as a hexa surface portion having a hexagonal cross section so as to correspond to the hexa protrusion 11a and the hexa groove fa, and optionally processed into at least one decut portion. It may be provided.
Accordingly, the inclined abutment 100 according to the present invention has an opening 31 of the second fastening pipe part 30 formed in such a manner that the first opening 21 is inclined at a predetermined angle and penetrates in the opposite direction. Spaced at predetermined intervals. Through this, an area of one side of the inner circumferential surface of the second fastening pipe part 30 adjacent to the first opening 21 is extended to a sufficient area to be firmly screwed with the thread 52 of the second fixing means 50. Therefore, the fastening stability can be significantly improved.
In addition, the clearance pocket groove portion 60 is formed in a connection portion of each of the fastening pipe portions 20 and 30 corresponding to the insertion direction of the first fixing means 40. By doing so, even when the lower end side of the first opening 21 and the first fastening pipe 20 are inclined at different angles, the first fixing means 40 and the fastening mechanism which extend to a predetermined length are inserted into the interference. This space that can be avoided can be secured. Therefore, since the process of fastening the inclined abutment 100 to the fixture f is quick and easy, the ease of operation can be remarkably improved.
In addition, the second fixing means 50 may be provided with a thin metric screw thread of substantially dense pitch interval p1 of the thread. Therefore, the screw contact area with the inner circumferential surface 32 of the second fastening pipe part 30 is further increased and firmly fixed, so that even if the prosthesis 300 is used for a long time, it may be prevented from being broken or arbitrarily separated by the chewing force. .
100: inclined abutment 11: engaging projection
12: margin portion 13: coupling portion
14: reinforcement body 20: the first fastening pipe
30: second fastening part 40: first fixing means
50: second fixing means 60: play pocket groove
300: prosthetic f: fixture
In an inclined abutment in which a fastening passage is formed to connect a prosthesis and a fixture, the fastening passage
A first fastening pipe part formed corresponding to the preset first extension direction and having a first opening portion into which the first fixing means is inserted;
A second fastening pipe part formed corresponding to the second extending direction inclined at a first angle preset with respect to the first extension direction, and having a second opening to be opened so that the second fixing means is screwed;
The connection portion between the first fastening pipe portion and the second fastening pipe portion opposed to the entry direction of the first fastening means, which enters through the first opening, is recessed in response to the insertion path of the first fastening means. Pocket groove is formed,
The first fixing means is provided with a bolt that the other end of the extension extending from the radially extended head portion of one end is fastened to the upper end of the fixture,
The clearance pocket groove portion has an outer circumferential side of the first fixing means which is inclined to the first opening portion corresponding to one side adjacent to the second opening portion of the edge of the first opening portion, and the outer circumferential side of the extension portion is the first side. If the other end of the opening facing the other side of the opening is set so that the other end is spaced apart from the inner surface of the clearance pocket groove portion is free space corresponding to the rotational trajectory of the insertion path inserted while being rotated to the lower end side of the first fastening pipe portion Slant abutment characterized in that the recess is formed so as to form a round.
The other end of the extension part is formed when one side of the head portion of the first fixing means is in contact with one side adjacent to the second opening portion among the edges of the first opening portion, and the outer peripheral side of the extension portion is in contact with the other side of the edge portion of the first opening portion. Slant abutment, characterized in that it is set so as to be spaced apart from the inner peripheral surface of the lower end side of the first fastening pipe.
The abutment abutment is characterized in that the stepped projection is formed between the gap pocket groove portion and the lower end of the first fastening pipe portion in the radially inward direction and the head is locked.
On the opposite side of the second fastening pipe portion is formed a third fastening pipe portion corresponding to the third extending direction inclined at a second angle preset with respect to the first extension direction,
The opening of the third fastening pipe portion corresponds to the first opening, and the end portion of the third fastening pipe portion corresponds to the clearance pocket groove portion.
The first extension direction corresponds to the longitudinal direction of the fixture,
The second extension direction is inclined abutment, characterized in that corresponding to the extension direction of the fastening groove formed perpendicular to the prosthesis.
A coupling part having a lower end coupled to an upper end of the fixture, a margin part provided at an upper end of the coupling protrusion and formed to have an upper surface perpendicular to the second extension direction, and a coupling part extending from an upper surface part of the margin part,
The coupling protrusion is formed coaxially with the first extension direction,
The coupling portion is formed coaxially with the second extension direction, the inclined abutment, characterized in that the outer surface is formed to correspond to the inner circumferential profile of the fastening groove.
The second opening is formed in the upper surface portion of the engaging portion, the first opening is inclined abutment characterized in that the opening is formed to be inclined toward the side of the side of the coupling portion facing the second opening.
Hexa protrusions are formed on the outer circumferential surface of the coupling protrusion formed on the hexa groove formed on the inner circumferential surface of the upper end of the fixture, and at least one surface of the coupling portion has a discontinuous alignment surface portion corresponding to the outer surface of the hexa protrusion. Inclined abutment.
KR1020170093298A 2017-07-24 2017-07-24 angular abutment for denture KR102039010B1 (en)
KR1020170093298A KR102039010B1 (en) 2017-07-24 2017-07-24 angular abutment for denture
KR20190010974A KR20190010974A (en) 2019-02-01
KR102039010B1 true KR102039010B1 (en) 2019-10-31
ID=65367750
KR (1) KR102039010B1 (en)
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2019-10-08 E701 Decision to grant or registration of patent right