Attached gingiva broadening device for oral implant repair

Abstract

The utility model discloses an attached gingival broadening device for oral implant repair. The attached gingival broadening device comprises a circular-ring-shaped base plate, an L-shaped section disc, a supporting piece, a gear transmission assembly and a fixing part. Sliding grooves and circular grooves for installing gears are formed in the two sides of the chassis. The disc consists of a lower disc and an upper disc, the lower disc is provided with a through hole and a screw hole, and the outer edge of the upper disc is provided with an arc-shaped bulge with the height of 5-8mm; the supporting piece achieves bidirectional sliding adjustment through gear and rack transmission, the rack and the gear are matched in modulus, the meshing precision is + / -0.1 mm, and the surface of the supporting block is coated with a silica gel layer to be attached to teeth. The cross groove in the top of the rotating rod drives the gear to rotate, and the flat-bottomed screw is screwed into the screw hole to abut against the supporting rod to form double locking. According to the utility model, through precise adjustment and a double-fixing mechanism, the attached gingiva is thoroughly expanded, the surgical field is stably exposed, the problems that the traditional instrument is inconvenient to adjust and easy to displace are solved, and the efficiency and the safety of the dental implant surgery are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of oral medical auxiliary device technology, specifically relating to an attachment gingival widening device for oral implant restoration. Background Technology

[0002] In dental implant surgery, dentists need to cut the gums to expose the alveolar bone before drilling. However, attached gingival tissue is prone to retraction, obscuring the surgical field and affecting surgical precision. Existing retraction instruments mostly use a fixed structure, which cannot flexibly adjust the width and lacks stability, easily leading to intraoperative displacement. In addition, traditional devices are complex to operate, requiring repeated adjustments and prolonging the operation time. Therefore, there is an urgent need for an attached gingival widening device that can be quickly adjusted, stably fixed, and fully expose the surgical field. Utility Model Content

[0003] In order to overcome the problems in the prior art, this utility model provides an attachment gingival widening device for dental implant restoration.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] An attachment gingival widening device for dental implant restoration includes:

[0006] The chassis is circular in shape, with symmetrical grooves on both sides. A circular groove communicating with the groove is opened on the upper side of the groove, and a gear is installed in the circular groove.

[0007] The disc consists of a lower disc and an upper disc, with an L-shaped cross-section. The lower disc has symmetrically opened circular holes coaxial with the gear, and screw holes are symmetrically opened directly above the slide groove. The lower disc also has through holes.

[0008] The support component includes a support rod and a support block. One end of the support rod is fixed to the support block by bolts. A rack is provided on one side of the support rod. The support rod is slidably installed in a groove. The rack meshes with a gear.

[0009] A rotating rod is welded to the center of the top of the gear, and the rotating rod is housed in the circular hole. A cross groove is provided on the top surface of the rotating rod.

[0010] Flat-bottomed screws are screwed into screw holes to tighten the support rod.

[0011] Furthermore, the gear is a spur gear, and the rack and gear are module-matched, with a meshing accuracy of ±0.1mm.

[0012] Furthermore, the support block has an arc-shaped structure and a silicone layer on its surface, which is used to fit the side of the teeth.

[0013] Furthermore, the width of the lower disk is greater than that of the upper disk, and the height of the upper disk is greater than that of the lower disk.

[0014] Furthermore, the outer edge of the upper disc is provided with an arc-shaped protrusion with a height of 5-8mm, which is used to fully open the attached gingiva.

[0015] Furthermore, the through hole and the screw hole of the chassis are fixed together by countersunk screws, with the head of the countersunk screw embedded in the surface of the lower disc to fix the disc and the chassis together vertically.

[0016] The beneficial effects of this utility model are:

[0017] (1) Precise adjustment: The gear and rack transmission structure achieves millimeter-level displacement control, adapting to different patients' alveolar widths;

[0018] (2) Double fixation: flat-bottomed screws and gears are linked and locked to prevent the support from shifting during the operation;

[0019] (3) Clear surgical field: The height design of the upper disc completely opens up the attached gingiva and avoids soft tissue interference;

[0020] (3) Easy to operate: The cross-groove rotating rod and standardized screw design simplify surgical procedures and shorten operation time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of the device of this utility model;

[0023] Figure 2 This is an exploded schematic diagram of the device of this utility model;

[0024] Figure 3 This is an internal sectional view of the device of this utility model;

[0025] Figure 4 This is a schematic diagram of the chassis structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the gear structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the disc structure of this utility model;

[0028] 1-Baseboard, 11-Slide groove, 12-Round groove, 13-Screw hole, 2-Disc, 21-Lower disc, 211-Screw hole, 212-Round hole, 213-Through hole, 22-Upper disc, 221-Arched protrusion, 3-Supporting component, 31-Supporting rod, 32-Supporting block, 33-Rack, 4-Gear, 41-Rotating rod, 42-Cross groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] See Figures 1 to 6 This utility model discloses an attachment gingival widening device for dental implant restoration, comprising:

[0032] The chassis 1 is made of medical-grade stainless steel and is circular in shape with an inner diameter adapted to the shape of the alveolar bone. Symmetrical sliding grooves 11 are opened on both sides. The width of the sliding groove 11 is 3mm. A circular groove 12 with a diameter of 8mm is opened on the upper side of the sliding groove 11 and communicates with it. A gear 4 is installed in the circular groove 12. The gear 4 has a module of 0.5 and 20 teeth.

[0033] The disc 2 is composed of a lower disc 21 and an upper disc 22. It is made of titanium alloy and has an L-shaped cross section. The lower disc 21 is 15mm wide and the upper disc 22 is 6mm high. The lower disc 21 has symmetrically opened circular holes 212 coaxial with the gear 4. M3 screw holes 211 are symmetrically opened directly above the slide groove 11. The lower disc 21 also has a through hole 213 with a diameter of 4mm.

[0034] The support component 3 includes a support rod 31 and a support block 32. The support rod 31 is made of stainless steel and has a rectangular cross-section (3mm×5mm). One end of the support rod 31 is fixed to the arc-shaped support block 32 by an M2 bolt. The side of the support rod 31 is a rack (33). The module of the rack 33 matches that of the gear 3, and the meshing clearance is ±0.1mm.

[0035] The rotating rod 41 is welded to the center of the top of the gear 4 and has a diameter of 4mm. The rotating rod 41 is housed in the circular hole 212. The top surface of the rotating rod 41 is provided with a cross groove 42 with a depth of 2mm, which is suitable for a standard screwdriver.

[0036] Flat-bottom screw 5, made of titanium alloy, with M3×8mm thread, is screwed into screw hole 211 to abut against support rod 31.

[0037] Operating procedures:

[0038] Place the base plate 1 at the alveolar bone incision, and insert the upper disc 22 below the gingival incision; use a Phillips screwdriver to rotate the rotating rod 41, and the gear 4 drives the rack 33 to move, so that the support block 32 slides to both sides until it is close to the adjacent tooth; tighten the flat-bottom screw 5 so that its bottom presses against the support rod 31 to form a double fixation; after completing the drilling operation, loosen the flat-bottom screw 5, rotate the rotating rod 41 in the opposite direction to retract the support 3, remove the device and suture the incision.

[0039] Example 2

[0040] In this embodiment, refer to Figure 2 , Figure 5 As shown, the precision meshing design of gear 4 and rack 33 is specifically explained. Gear 4 is a spur gear with a module of 0.5, a pressure angle of 20°, and a tip circle diameter of 10mm. Rack 33 has a module of 0.5, and its tooth surface is polished with a roughness Ra≤0.4μm. The meshing clearance between gear 4 and rack 33 is controlled by the machining accuracy of the slide groove 11, with an error range of ±0.1mm, ensuring smooth transmission without jamming.

[0041] Tests show that when the lever is rotated from 41 to 90° in a single operation, the displacement of the support block 32 is 1.2 mm, which meets the requirements for millimeter-level fine-tuning during the operation.

[0042] Example 3

[0043] In this embodiment, refer to Figure 1 , Figure 3 The diagram illustrates the optimized design of the support block 32. The support block 32 has an arc-shaped structure with a radius of curvature matching the tooth side surface (5-8mm). The surface is covered with a 1mm thick medical silicone layer with a Shore A hardness of 50A. The surface of the silicone layer has anti-slip textures and a coefficient of friction ≥0.6, which can effectively prevent slippage during surgery.

[0044] Clinical trials have shown that the silicone layer can reduce pressure damage to the enamel surface, and patients experience a 30% reduction in postoperative discomfort.

[0045] Example 4

[0046] The dimensions of disk 2 are described in detail in this embodiment. (See attached document.) Figure 1 , Figure 6 As shown, the width of the lower disk 21 is greater than that of the upper disk 22, and the height of the upper disk 22 is greater than that of the lower disk 21.

[0047] The lower disc 21 is 15mm wide and the upper disc 22 is 10mm wide, with a width difference of 5mm, ensuring stable support for the base plate 1; the upper disc 22 is 6mm high and the lower disc 21 is 3mm high, with a height difference of 3mm, so that the upper disc 22 completely covers the upper edge of the cut; the lower disc 21 and the upper disc 22 are connected by laser welding, and the weld strength is ≥300MPa.

[0048] Example 5

[0049] This embodiment describes the design of the arc-shaped protrusion 221 on the upper disk 22. The outer edge of the upper disk 22 is provided with an arc-shaped protrusion 221, the protrusion height is 6mm (preferred value), the radius of curvature is 8mm, and it naturally conforms to the gingival tissue. The surface of the arc-shaped protrusion 221 is mirror polished, and the radius of the edge rounded corner is 0.3mm to avoid scratching the soft tissue. Intraoperative tests show that this design can increase the width of the attached gingiva by 40% and increase the exposed area of ​​the surgical field by 50%.

[0050] Example 6

[0051] This embodiment describes the fixing method of the countersunk screws; please refer to [reference needed]. Figure 1 , Figure 4 , Figure 6 As shown, after the through hole 213 is aligned with the screw hole 13 of the chassis 1, an M3×6mm countersunk screw is used for through fixing; the head of the countersunk screw is tapered and embedded 0.5mm into the surface of the lower disc 21 to ensure that there are no protrusions between the disc 2 and the chassis 1; the torque test shows that the connection stability is the best when the countersunk screw is tightened to 1.5N·m, and the tensile strength is ≥200N.

[0052] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gingival augmentation device for use in oral implant restoration attachment, characterized in that, The utility model relates to a dental support device, including: A bottom disc (1) is annular, and two sides are symmetrically provided with a sliding slot (11), and the upper side of the sliding slot (11) is provided with a circular groove (12) in communication with the sliding slot (11), and a gear (4) is installed in the circular groove (12); A disc (2) is composed of a lower disc (21) and an upper disc (22), and the cross section is L-shaped, the lower disc (21) is symmetrically provided with a circular hole (212) coaxial with the gear (4), and screw holes (211) are symmetrically provided above the sliding slot (11), and the lower disc (21) is further provided with a through hole (213); A support piece (3) includes a support rod (31) and a support block (32), one end of the support rod (31) is fixed to the support block (32) through a bolt, and a rack (33) is arranged on one side of the support rod (31), the support rod (31) is slidably installed in the sliding slot (11), and the rack (33) is engaged with the gear (4); A rotating rod (41) is welded to the top center of the gear (4), the rotating rod (41) is accommodated in the circular hole (212), and the top surface of the rotating rod (41) is provided with a cross groove (42); A flat bottom screw (5) is screwed into the screw hole (211) and used for abutting against the support rod (31).

2. The gingival augmentation device of claim 1, wherein the device is configured to be attached to a dental implant abutment. The gear (4) is a straight gear, the modulus of the rack (33) matches that of the gear (4), and the meshing accuracy is + / -0.1mm.

3. The gingival augmentation device of claim 1, wherein the device is configured to be attached to a dental implant abutment. The support block (32) is an arc-shaped structure, and the surface is covered with a silica gel layer, which is used for fitting the side surface of the tooth.

4. The gingival augmentation device of claim 1, wherein the device is configured to be attached to a dental implant abutment. The width of the lower disc (21) is greater than that of the upper disc (22), and the height of the upper disc (22) is greater than that of the lower disc (21).

5. The gingival augmentation device of claim 4, wherein the device is configured to be attached to a dental implant abutment. The outer edge of the upper disc (22) is provided with an arc-shaped protrusion (221) with a height of 5-8mm, which is used for completely supporting the attached gum.

6. The gingival augmentation device of claim 1, wherein the device is configured to be used in conjunction with a dental implant. The through hole (213) and the screw hole (13) of the bottom disc (1) are fixed through a countersunk screw, and the head of the countersunk screw is embedded in the surface of the lower disc (21) to fix the disc (2) and the bottom disc (1) together.

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