Driver holder for fastening inclined abutment

Abstract

An embodiment of the present invention provides a driver holder for fastening an inclined abutment, which is fastened to an implant implanted to be inclined at a preconfigured angle with respect to a fastening direction of a prosthesis and has a first fastening passage part corresponding to the fastening direction of the prosthesis and a second fastening passage part corresponding to an implantation direction of the implant, the driver holder comprising: a first penetration part into which a handle member coupled to the first fastening passage part of the inclined abutment is inserted, and which has a first penetration hole extending therethrough in a first direction corresponding to the fastening direction of the prosthesis; and a second penetration part into which a fastening driver for providing a rotational force to a screw member for fastening the inclined abutment to the implant through the second fastening passage part of the inclined abutment is inserted, and which has a second penetration hole extending therethrough in a second direction corresponding to the implantation direction of the implant.

Description

Driver holder for inclined abutment fastening

[0001] The present invention relates to a driver holder for fastening an inclined abutment.

[0002] An implant is a replacement for lost human tissue, but in dentistry, it refers to an artificial tooth root. Dental implant surgery involves placing an implant made of titanium, a material that the body will not reject, into the alveolar bone to replace the root of a lost tooth. This involves bonding an abutment to the implant, followed by a crown.

[0003] Meanwhile, the implant is placed at a predetermined angle on the molar side of the gum, resulting in a difference in the attachment direction of the prosthesis and the implant placement direction. Therefore, an inclined abutment capable of simultaneously satisfying both the implant placement direction and the prosthesis attachment direction is required.

[0004] The inclined abutment is formed with a first fastening passage corresponding to the fastening direction of the prosthesis so that the handle member can be inserted, and a second fastening passage corresponding to the implantation direction so that the fastening driver can be inserted. That is, the first fastening passage and the second fastening passage of the inclined abutment are formed to form a certain angle with each other, and this angle corresponds to the angle formed by the implantation direction and the fastening direction of the prosthesis.

[0005] In the conventional case, as illustrated in FIG. 1, the practitioner uses a handle member (10) inserted into a first fastening passage with one hand in the oral cavity to move the inclined abutment (100) to the top of the implant, then temporarily fixes the inclined abutment (100) to the implant, and then rotates a fastening driver (20) inserted into a second fastening passage with the other hand to fasten the screw member (30) to the implant, thereby fixing the inclined abutment to the implant. At this time, it is difficult and tricky for the practitioner to perform the procedure with both hands in a narrow oral cavity, and there is also a risk that the patient may swallow it or it may be inserted into the airway if the practitioner accidentally drops the fastening driver (20) during the fastening process of the inclined abutment (100).

[0006] Prior art literature

[0007] Korean Patent Publication No. 10-01380919 (March 27, 2014)

[0008] The present invention is intended to solve the problems of the prior art described above, and an object of the present invention is to provide a driver holder for fastening an inclined abutment, which can simultaneously hold a handle member and a fastening driver, thereby improving convenience and safety in the process of fastening an inclined abutment to an implant.

[0009] In order to achieve the above object, one aspect of the present invention provides a driver holder for fastening an inclined abutment, which is fastened to an implant that is planted at an angle set in relation to a fastening direction of a prosthesis, and has a first fastening passage formed corresponding to the fastening direction of the prosthesis and a second fastening passage formed corresponding to the installation direction of the implant, wherein a handle member coupled to the first fastening passage of the inclined abutment is inserted, a first through-hole extending in a first direction corresponding to the fastening direction of the prosthesis is formed therethrough, and a fastening driver for providing a rotational force to a screw member that fastens the inclined abutment to the implant through the second fastening passage of the inclined abutment is inserted, and a second through-hole extending in a second direction corresponding to the installation direction of the implant is formed therethrough.

[0010] In one embodiment of the present invention, the first through-hole may be a driver holder for fastening an inclined abutment, characterized in that at least a portion of a side surface is open so that the handle member can be inserted laterally into the first through-hole.

[0011] In one embodiment of the present invention, the second through-hole may be a driver holder for fastening an inclined abutment, characterized in that at least a portion of a side surface is open so that the fastening driver can be inserted laterally into the second through-hole.

[0012] In one embodiment of the present invention, the driver holder for fastening an inclined abutment may be characterized in that the upper opening of the second through hole is formed in the shape of a long hole and the lower opening is formed in the shape of a circular hole, and the inner diameter thereof gradually decreases from the upper opening to the lower opening.

[0013] In one embodiment of the present invention, the driver holder for fastening an inclined abutment may be characterized in that the inner diameter of the first through hole is formed to correspond to the outer diameter of the handle member.

[0014] In one embodiment of the present invention, the driver holder for fastening an inclined abutment may be characterized in that the first through-hole portion and the second through-hole portion are formed integrally.

[0015] In one embodiment of the present invention, the driver holder may be a driver holder for fastening an inclined abutment, characterized in that it is made of a soft material.

[0016] According to one aspect of the present invention, the driver holder for fastening an inclined abutment of the present invention can simultaneously hold a handle member and a fastening driver, thereby improving convenience and safety in the process of fastening an inclined abutment to an implant, and further, once manufactured, can be applied to various implantation angle cases.

[0017] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0018] Figure 1 is a drawing showing the process of attaching a conventional inclined abutment to an implant.

[0019] Figure 2 is a cross-sectional view of an inclined abutment.

[0020] Figure 3 is a perspective view of a driver holder for fastening an inclined abutment according to one embodiment of the present invention.

[0021] Fig. 4 is a cross-sectional view of a driver holder for fastening an inclined abutment according to one embodiment of the present invention.

[0022] FIG. 5 and FIG. 6 are drawings showing a process of fastening an inclined abutment to an implant using a driver holder for fastening an inclined abutment according to one embodiment of the present invention.

[0023] Fig. 7 is a perspective view of a driver holder for fastening an inclined abutment according to a second embodiment of the present invention.

[0024] Fig. 8 is a cross-sectional view of a driver holder for fastening an inclined abutment according to a second embodiment of the present invention.

[0025] Fig. 9 is a perspective view of a driver holder for fastening an inclined abutment according to a third embodiment of the present invention.

[0026] Fig. 10 is a cross-sectional view of a driver holder for fastening an inclined abutment according to a third embodiment of the present invention.

[0027] Fig. 11 is a drawing showing an example of use of a driver holder for fastening an inclined abutment according to a third embodiment of the present invention.

[0028] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms and is therefore not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar parts have been designated with similar reference numerals throughout the specification.

[0029] Throughout the specification, when a part is said to be "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with other elements intervening. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that the other components may be included, unless otherwise specifically stated.

[0030] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0031] Figure 2 is a cross-sectional view of an inclined abutment.

[0032] Referring to FIG. 2, an inclined abutment (100) is a dental implant component used to connect an implant to a prosthesis or bridge. The inclined abutment (100) has an angular shape to enable a more precise fit between the abutment and the implant, especially when the angle between the alveolar bone and the implant is not ideal. Specifically, the inclined abutment (100) may be more suitable when the alveolar bone is not in an ideal position or the bone density is not sufficient to support a conventional straight abutment. In particular, the inclined abutment (100) is preferably understood as a device that connects to an implant implanted on the molar side of the mandible.

[0033] On the molar side of the mandible, the implant is placed at an angle (θ) that is set to a predetermined angle with respect to the direction of attachment of the prosthesis (X1). Then, the inclined abutment (100) is attached to the upper portion of the implant placed at an angle (θ) that is set to the alveolar bone.

[0034] The upper end of the inclined abutment (100) is formed to extend in a first direction corresponding to the fastening direction (X1) of the prosthesis, and the lower end is formed to extend in a second direction corresponding to the implantation direction (X2) of the implant.

[0035] The inclined abutment (100) is provided with a first fastening passage (110) and a second fastening passage (120) formed penetratingly in correspondence with the implant placement direction and the prosthesis fastening direction. Here, it is preferable that the first fastening passage (110) be formed in correspondence with the prosthesis fastening direction (X1), and the second fastening passage (120) be formed in correspondence with the implant placement direction (X2).

[0036] The inclined abutment (100) is fastened to the upper end of the implant and includes a first connecting portion (130) extending in a second direction corresponding to the implantation direction (X2) of the implant, a margin portion (140) provided on the upper end of the first connecting portion (130) and having an upper surface (141) formed orthogonal to the fastening direction (X1) of the prosthesis, and a second connecting portion (150) extending in a first direction corresponding to the fastening direction (X1) of the prosthesis from the upper surface (141) of the margin portion (140).

[0037] The first fastening passage (110) extends along the central portion of the second connecting portion (150) in the extension direction, and a first opening (111) is formed at the top so that a handle member (10) can be inserted. This first fastening passage (110) can be formed in a shape that branches off from one side of the second fastening passage and penetrates therethrough.

[0038] It is preferable that the first fastening passage (110) be formed with a first screw thread (112) on the inner surface so that a handle member (10) coupled with the upper end of the inclined abutment (100) is screw-fastened. The handle member (10) is a tool that moves the inclined abutment (100) to the implant implanted in the alveolar bone while being coupled with the inclined abutment (100) through the first fastening passage (110) and maintains the inclined abutment (100) from leaving the position while fixing the inclined abutment (100) to the implant using the screw member (30).

[0039] The second fastening passage (120) extends along the central portion of the first connecting portion (130) in the extension direction, and a second opening (121) is formed at the top so that a fastening driver (20) can be inserted. The fastening driver (20) is a tool that enters through the second fastening passage (120) and rotates the screw member (30) when the inclined abutment (100) is positioned at a position for engaging with the implant, thereby firmly fixing the inclined abutment (100) to the implant. At this time, the second opening (121) is formed so as to open to the outside of the inclined side portion of the first connecting portion (130). The second fastening passage (120) may have a second screw thread (122) formed on the inner surface so that the screw member (30) can be caught.

[0040] FIG. 3 is a perspective view of a driver holder for fastening an inclined abutment according to one embodiment of the present invention, and FIG. 4 is a cross-sectional view of a driver holder for fastening an inclined abutment according to one embodiment of the present invention.

[0041] Referring to FIGS. 3 and 4, a driver holder (200) for fastening an inclined abutment according to one embodiment of the present invention includes a first through-hole (210) and a second through-hole (220).

[0042] More specifically, the inclined abutment fastening driver holder (200) is fastened to an implant that is planted at an angle (θ) set in relation to the fastening direction (X1) of the prosthesis, and has a first fastening passage (110) formed corresponding to the fastening direction (X1) of the prosthesis and a second fastening passage (120) formed corresponding to the planting direction (X2) of the implant, wherein a handle member (10) coupled to the first fastening passage (110) of the inclined abutment (100) is inserted, and a first through-hole (211) extending in a first direction corresponding to the fastening direction (X1) of the prosthesis is formed through the first through-hole (210), and a screw member (30) that provides a rotational force to fasten the inclined abutment (100) to the implant through the second fastening passage (120) of the inclined abutment (100). A driver (20) is inserted, and a second through hole (221) extending in a second direction corresponding to the implantation direction (X2) of the implant is formed through a second through hole (220).

[0043] The first through-hole (210) includes a first through-hole (211) formed to extend in a first direction corresponding to the fastening direction (X1) of the prosthesis. An opening is formed at the upper end of the first through-hole (211), and a handle member (10) fastened to the second connecting portion (150) of the inclined abutment (100) can enter through the opening.

[0044] The first through hole (211) may be formed to have an inner diameter corresponding to the outer diameter of the extension portion (11) of the handle member (10), or may be formed to have an inner diameter forming a predetermined tolerance with the outer diameter of the extension portion (11) of the handle member (10).

[0045] For example, a first entry guide portion (212) whose inner diameter gradually increases toward the upper opening may be provided at the upper portion of the first through hole (211) to facilitate entry of the handle member (10). Accordingly, even if the handle member (10) enters the opening in a direction that does not match the extension direction (first direction) of the first through hole (211), it can be easily entered into the first through hole (211) by being guided by the first entry guide portion (212), thereby improving usability.

[0046] Meanwhile, the handle member (10) includes an extension (11) inserted into the first through hole (211) and a head (12) that functions as a handle on the upper side of the extension (11). Here, the outer diameter of the head (12) may be formed to be larger than the outer diameter of the extension (11). A tapered portion (12a) that is seated on the first entry guide portion (212) of the first through hole (210) may be formed at the lower end of the head (12), and a screw-joining portion (11a) that is coupled to the first screw thread (112) of the first fastening passage (110) may be formed at the lower end of the extension (11).

[0047] This handle member (10) can be supplied to the operator in a form in which it is inserted and fixed into the first through hole (211) of the driver holder (200) for fastening the inclined abutment.

[0048] The second through-hole (220) includes a second through-hole (221) formed to extend in a second direction corresponding to the implantation direction (X2) of the implant therein. An opening is formed at the upper end of the second through-hole (221), and a fastening driver (20) for rotating the screw member (30) can enter through the opening.

[0049] The second through hole (221) may be formed to have an inner diameter corresponding to the outer diameter of the extension portion (21) of the fastening driver (20), or may be formed to have an inner diameter that forms a predetermined tolerance with the outer diameter of the extension portion (21) of the fastening driver (20).

[0050] For example, a second entry guide portion (222) may be provided at the upper portion of the second through hole (221) so that the inner diameter thereof gradually increases toward the upper opening to facilitate the entry of the fastening driver (20). Accordingly, even if the fastening driver (20) enters the opening in a direction that does not coincide with the extension direction (second direction) of the second through hole (221), it can be easily entered into the second through hole (221) by being guided by the second entry guide portion (222), thereby improving the convenience of use.

[0051] For example, as described above, the handle member (10) can be supplied to the operator in a form inserted and fixed into the first through-hole (211) of the driver holder (200) for fastening the inclined abutment, so that a separate insertion process is not required. However, since the operator must directly insert the fastening driver (20) into the second through-hole (221), the second entry guide portion (222) can be formed wider than the first entry guide portion (212).

[0052] For example, the first through-hole (210) and the second through-hole (220) may be formed integrally. That is, it is preferable that the first through-hole (210) be formed to protrude from one side of the second through-hole (220) and be formed integrally with the second through-hole (220). Here, it is preferable to understand that the term "formed integrally" means that the first through-hole (210) and the second through-hole (220) are formed as a single member and formed integrally.

[0053] The driver holder (200) for fastening an inclined abutment can simultaneously hold a handle member (10) and a fastening driver (20) using a first through-hole (210) and a second through-hole (220), thereby improving convenience and safety in the process of fastening an inclined abutment (100) to an implant.

[0054] As an example, the driver holder (200) for fastening the inclined abutment may be made of a soft material, for example, a soft material such as synthetic rubber, natural rubber, synthetic resin, or soft silicone.

[0055] FIG. 5 and FIG. 6 are drawings showing a process of fastening an inclined abutment to an implant using a driver holder for fastening an inclined abutment according to one embodiment of the present invention.

[0056] Referring to FIGS. 5 and 6, the operator can fasten the inclined abutment (100) to the implant by the steps of: coupling the handle member (10) to the driver holder (200) through the first through-hole (210) of the driver holder (200); coupling the handle member (10) to the second coupling portion (150) of the inclined abutment (100); positioning the inclined abutment (100) at a coupling position with the implant; and inserting the fastening driver (20) through the second through-hole (220) of the driver holder (200) and rotating the fastening screw member (30) using the fastening driver (20) to secure the inclined abutment (100) to the implant.

[0057] Meanwhile, when the handle member (10) is fastened to the inclined abutment (100), the head (12) of the handle member (10) presses the upper part of the driver holder (200), and the lower part of the driver holder (200) comes into contact with the upper part of the inclined abutment (100), so that the driver holder (200) can be coupled in a form in which it is caught between the head (12) of the handle member (10) and the upper part of the inclined abutment (100). More specifically, when the handle member (10) is fastened to the inclined abutment (100), the tapered part (12a) of the head part (12) is seated on the first entry guide part (212) of the first through-hole part (210) and presses the driver holder (200), and the lower part (213) of the first through-hole part (210) comes into contact with the upper part (113) of the first fastening passage part (110). That is, the first entry guide portion (212) of the first penetration portion (210) is fixed in position by the tapered portion (12a) of the handle member (10), and the lower portion (213) of the first penetration portion (210) is fixed in position by the upper portion (113) of the inclined abutment (100), so that the up-and-down movement and rotation of the driver holder (200) can be prevented. Furthermore, when the up-and-down movement and rotation of the driver holder (200) are prevented, the insertion axis of the subsequent fastening driver (20) is not misaligned, so that user convenience can be improved.

[0058] Fig. 7 is a perspective view of a driver holder for fastening an inclined abutment according to a second embodiment of the present invention, and Fig. 8 is a cross-sectional view of a driver holder for fastening an inclined abutment according to a second embodiment of the present invention.

[0059] Referring to FIGS. 7 and 8, a driver holder (300) for fastening an inclined abutment according to a second embodiment of the present invention includes a first through-hole (310) and a second through-hole (320), wherein the second through-hole (320) is configured such that a fastening driver (20) can enter at various angles to fasten a fastening screw member (30) to an implant.

[0060] At this time, in the second embodiment, the basic configuration is the same as in the first embodiment described above, except that the shape of the second through hole (321) of the second through hole (320) is formed differently from the shape of the second through hole (221) of the second through hole (220) in the first embodiment, so a detailed description of the same configuration is omitted.

[0061] For example, the upper opening (321a) of the second through hole (321) may be formed in the shape of a long hole, and the lower opening (321b) may be formed in the shape of a round hole, but the inner diameter may be formed to gradually decrease from the upper opening (321a) to the lower opening (321b).

[0062] That is, since the driver (20) for fastening is configured to be able to enter the second penetration portion (320) at various angles and be fastened to the fastening screw member (30), there is an advantage in that there is no need to re-manufacture the driver holder (300) to suit different treatment cases in which the angle formed by the implant placement direction and the fastening direction of the prosthesis, i.e., the inclined angle of the inclined abutment (100), is different. That is, the driver holder (300) for fastening the inclined abutment according to the second embodiment can be applied to various treatment cases once it is manufactured.

[0063] FIG. 9 is a perspective view of a driver holder for fastening an inclined abutment according to a third embodiment of the present invention, FIG. 10 is a cross-sectional view of a driver holder for fastening an inclined abutment according to a third embodiment of the present invention, and FIG. 11 is a drawing showing an example of use of a driver holder for fastening an inclined abutment according to a third embodiment of the present invention.

[0064] Referring to FIGS. 9 and 10, a driver holder (400) for fastening an inclined abutment according to a third embodiment of the present invention includes a first through-hole (410) and a second through-hole (420), wherein at least one of the first through-hole (410) and the second through-hole (420) is configured such that at least a portion of a side surface is open.

[0065] At this time, in the third embodiment, the basic configuration is the same as the first embodiment described above, except that at least a part of the side of the first penetration portion (410) or the side of the second penetration portion (420) is formed to be open, so a detailed description of the same configuration is omitted.

[0066] For example, the first through-hole (410) may be configured to have at least a portion of a side surface open so that the handle member (10) connected to the inclined abutment (100) can be laterally inserted into the first through-hole (411). That is, a first side opening (412) may be formed on one side of the first through-hole (410). In this case, as illustrated in FIG. 11, the handle member (10) may be first connected to the second connecting portion (150) of the inclined abutment (100) and then connected to the first through-hole (411) of the driver holder (400) through the side opening structure of the driver holder (400). That is, there is no need for the handle member (10) to first be connected to the driver holder (400) for connecting the inclined abutment through the first through-hole (411). At this time, it is preferable that the first side opening (412) of the first penetration portion (410) be opened only to the extent that the handle member (10) can enter, but the holding force for the handle member (10) can be maintained.

[0067] In addition, according to one example, the second through-hole (420) may be configured to have at least a portion of the side surface open so that the fastening driver (20) can be inserted laterally into the second through-hole (421). That is, a second side opening (422) may be formed on one side of the second through-hole (420). At this time, it is preferable that the second side opening (422) of the second through-hole (420) be opened only to the extent that the fastening driver (20) can enter, but the holding force for the fastening driver (20) can be maintained.

[0068] In this way, the driver holder for fastening an inclined abutment of the present invention can simultaneously hold a handle member and a fastening driver, thereby improving convenience and safety in the process of fastening an inclined abutment to an implant, and, once manufactured, can be applied to various implantation angle cases.

[0069] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0070] The scope of the present invention is indicated by the claims described below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0071] Description of the symbol

[0072] 10 Handle Absence

[0073] 11 extensions

[0074] 11a screw joint

[0075] 12 Head

[0076] 12a taper section

[0077] 20 Fastening Driver

[0078] 30 screw member

[0079] 100-degree angle abutment

[0080] 110 First Concluding Passage

[0081] 111 First opening

[0082] 112 1st screw thread

[0083] 113 Top

[0084] 120 Second Concluding Passage

[0085] 121 Second opening

[0086] 122 Second screw thread

[0087] 130 First joint

[0088] 140 margin

[0089] 141 Upper surface of the margin

[0090] 150 Second joint

[0091] 200 Driver holder for fastening inclined abutment according to the first embodiment

[0092] 210 First penetration

[0093] 211 First through hole

[0094] 212 Entry Guide Section 1

[0095] 213 Lower part

[0096] 220 Second penetration

[0097] 221 Second through hole

[0098] 222 Second Entry Guide

[0099] 300 Driver holder for fastening inclined abutment according to the second embodiment

[0100] 310 First penetration

[0101] 311 First through hole

[0102] 312 1st Entry Guide Section

[0103] 321 Second through hole

[0104] 321a top opening

[0105] 321b lower opening

[0106] 320 Second penetration

[0107] 321 Second through hole

[0108] 400 Driver holder for fastening inclined abutment according to the third embodiment

[0109] 410 First penetration

[0110] 411 First through hole

[0111] 412 First side opening

[0112] 420 Second penetration

[0113] 421 Second through hole

[0114] 422 Second side opening

[0115] X1 Fastening direction of prosthesis (first direction)

[0116] X2 implant placement direction (second direction)

Claims

1. A driver holder for fastening an inclined abutment, which is fastened to an implant that is planted at a predetermined angle with respect to the fastening direction of the prosthesis, and in which a first fastening passage is formed corresponding to the fastening direction of the prosthesis and a second fastening passage is formed corresponding to the planting direction of the implant, A first through-hole formed through a first through-hole extending in a first direction corresponding to the fastening direction of the prosthesis, into which a handle member is inserted to be coupled to the first fastening passage of the inclined abutment; and A driver holder for fastening an inclined abutment, wherein a fastening driver for providing rotational force to a screw member for fastening the inclined abutment to the implant is inserted through the second fastening passage of the inclined abutment, and a second through-hole formed through the second through-hole extending in a second direction corresponding to the implantation direction of the implant is included.

2. In paragraph 1, A driver holder for fastening an inclined abutment, characterized in that the first through-hole has at least a portion of a side surface open so that the handle member can be inserted laterally into the first through-hole.

3. In paragraph 1, A driver holder for fastening an inclined abutment, characterized in that at least a portion of the side of the second through-hole is open so that the fastening driver can be inserted laterally into the second through-hole.

4. In paragraph 1, A driver holder for fastening an inclined abutment, characterized in that the upper opening of the second through hole is formed in the shape of a long hole and the lower opening is formed in the shape of a circular hole, and the inner diameter thereof gradually decreases from the upper opening to the lower opening.

5. In paragraph 1, A driver holder for fastening an inclined abutment, characterized in that the inner diameter of the first through hole is formed to correspond to the outer diameter of the handle member.

6. In paragraph 1, A driver holder for fastening an inclined abutment, characterized in that the first penetration portion and the second penetration portion are formed integrally.

7. In paragraph 1, A driver holder for fastening an inclined abutment, characterized in that a first entry guide portion is provided at the upper portion of the first through hole, the inner diameter of which gradually increases toward the upper opening to facilitate entry of the handle member.

8. In paragraph 1, A driver holder for fastening an inclined abutment, characterized in that the above driver holder is made of a soft material.

Images