Gingiva retraction and protection device combined with rubber barrier

Abstract

The utility model discloses a gum retraction and protection device combined with a rubber barrier, which comprises a rubber barrier clamp, a mounting block, a push rod, a first locking mechanism, a gum pushing sheet and the like, before subgingival defect repair, the rubber barrier clamp connected with the mounting block is used for fixing the rubber barrier by a barrier splitting method, and a clamping arm connected with the mounting block is positioned on the cheek side, so that the rubber barrier can be fixed by the rubber barrier clamp; in the state, the gingival pushing piece faces one side of the teeth, the push rod is adjusted to drive the gingival pushing piece to be close to the tooth body, so that the gingival pushing piece is arranged in the gingival sulcus and abuts against the subgingival defect section of the tooth body tissue, and at the moment, the first locking mechanism is used for locking the relative position of the push rod and the mounting block so as to keep the support of the gingival pushing piece to the tooth body; and under the condition that an operator does not need to additionally occupy hands, the gum pushing sheet is continuously and stably supported.

Description

Technical Field

[0001] The utility model relates to the field of dental auxiliary equipment, in particular to a gingival retraction and protection device combined with a rubber dam. Background Art

[0002] For caries and non-caries defects in the cervical region of teeth, since 20% of the lesions are located below the gingival margin, in order to obtain a good repair effect, it is necessary to fully expose the lesion area and stop bleeding and isolate it from moisture. Gingival retraction surgery is usually required to deal with the gingival tissue that covers the lesion area.

[0003] There is a type of instrumental gingival protection and gingival retraction technology that uses special instruments such as gingival pushers to push the gums away to expose the subgingival defect section. However, this technology still has some defects. Specifically, when the gingival pusher pushes the gums away to expose the subgingival defect section, the doctor or assistant needs to hold the gingival pusher, which is not only unstable during the operation but also occupies the operator's hands. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems in the prior art and provide a gingival retraction and protection device combined with a rubber dam, which can provide continuous and stable support for the gingival extension without requiring the operator to occupy additional hands, including:

[0005] A rubber dam clamp, used to secure a portion of the rubber dam cloth between the tooth and the clamp's arms;

[0006] The mounting block is connected to the buccal arm of the rubber dam clamp, and has a horizontal first channel formed therein. Both ends of the first channel are connected to the outside of the mounting block, and the extension direction of the first channel is perpendicular to the long axis of the tooth.

[0007] A push rod is slidably sleeved in the first channel, and the push rod can slide in a direction close to or away from the teeth;

[0008] A first locking mechanism is provided on the mounting block and is used to lock the relative position between the mounting block and the push rod;

[0009] The gum pusher is hinged to one end of the push rod facing the teeth, and can be placed in the gingival sulcus and abut against the tooth surface at the gum.

[0010] Furthermore, it also includes:

[0011] The sliding rod is horizontally fixedly connected to the clamp arm on the buccal side of the rubber dam clamp, and the extension direction of the sliding rod is perpendicular to the first channel. A horizontal second channel is opened inside the mounting block, and both ends of the second channel are connected to the outside of the mounting block. The second channel is perpendicular to the first channel, and the sliding rod is slidably sleeved in the second channel.

[0012] The second locking mechanism is provided on the mounting block and is used for locking the relative position between the mounting block and the slide bar.

[0013] Furthermore, the gum pusher is hinged to one end of the push rod facing the teeth, and the gum pusher can rotate with the hinge as a rotation base point, and its rotation axis is parallel to the second channel and / or the first channel.

[0014] Furthermore, the gum push piece is hinged to the end of the push rod facing the teeth in a ball-and-socket hinge manner.

[0015] Furthermore, a sphere is fixedly connected to the side of the gum pusher facing away from the teeth, and a hemispherical shell is fixedly connected to the end of the push rod facing the teeth. The sphere is placed in the hemispherical shell, thereby realizing a ball-and-socket hinge connection between the gum pusher and the push rod, and a friction damping layer is connected to the surface of the sphere and / or the inner side of the hemispherical shell.

[0016] Furthermore, a vertical first threaded channel is provided on the mounting block, the first threaded channel is connected to the first channel, the first locking mechanism includes a fastening bolt, the fastening bolt is threadedly connected to the first threaded channel, and the end of the fastening bolt facing the mounting block can extend into the first channel so as to press the fastening push rod.

[0017] Furthermore, the second locking mechanism includes two fastening nuts, the outer surface of the sliding rod is provided with threads matching the fastening nuts, the two fastening nuts are threadedly connected to the sliding rod, and the mounting block is located between the two fastening nuts. The two fastening nuts can respectively rest on both sides of the mounting block in the length direction of the sliding rod, thereby locking the mounting block.

[0018] Furthermore, the gum pusher is in the shape of an arc-shaped plate, and the curvature of the arc-shaped plate is configured to fit the outer surface of the tooth.

[0019] Compared with the prior art, the beneficial effect of the present invention is that before repairing the subgingival defect, a rubber dam clamp connected to a mounting block is used to fix the rubber dam by the splitting barrier method, and the clamp arm connected to the mounting block is located on the buccal side. In this state, the gingival push piece is directed toward the side of the tooth. By adjusting the push rod, the gingival push piece is driven close to the tooth body, so that the gingival push piece is placed in the gingival sulcus, thereby resting against the subgingival defect section of the tooth tissue, and at this time, the first locking mechanism is used to lock the relative position of the push rod and the mounting block to maintain the support of the gingival push piece on the tooth body, so that the gingival push piece can be continuously and stably supported without the operator having to occupy his hands extra. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic top view of the overall structure of one embodiment;

[0021] Figure 2 A schematic three-dimensional cross-sectional view of the main structure of one embodiment;

[0022] Figure 3 This is a schematic diagram of a detailed structure of one embodiment.

[0023] Description of reference numerals:

[0024] 1. Clamp arm; 2. Mounting block; 3. Push rod; 31. Hemispherical shell; 32. Friction damping layer; 4. Pushing piece; 41. Sphere; 5. Sliding rod; 61. Fastening bolt; 62. Fastening nut. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are described in detail below, but it should be understood that the scope of protection of the present invention is not limited by the specific embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The utility model provides a gingival retraction and protection device combined with a rubber dam, comprising: a rubber dam clamp, a mounting block 2, a push rod 3, a first locking mechanism and a gingival pushing piece 4, etc. The rubber dam clamp is used to clamp part of the rubber dam between the teeth and the clamping arm 1 of the rubber dam clamp; the mounting block 2 is connected to the clamping arm 1 of the rubber dam clamp located on the buccal side, and a horizontal first channel is opened inside, both ends of the first channel are connected to the outside of the mounting block 2, and the extension direction of the first channel is perpendicular to the long axis of the tooth; the push rod 3 is slidably sleeved in the first channel, and the push rod 3 can slide in the direction of approaching / moving away from the teeth; the first locking mechanism is provided on the mounting block 2, and is used to lock the relative position between the mounting block 2 and the push rod 3; the gingival pushing piece 4 is hinged to the end of the push rod 3 facing the teeth, and the gingival pushing piece 4 can be placed in the gingival sulcus and abut against the tooth surface at the gingiva.

[0027] Specifically, please refer to Figures 1 to 3 Before repairing the subgingival defect, a rubber dam clamp connected to the mounting block 2 is used to fix the rubber dam by the splitting dam method, and the clamp arm 1 connected to the mounting block 2 is located on the buccal side. In this state, the gingival push piece 4 is facing the tooth side. By adjusting the push rod 3, the gingival push piece 4 is driven to approach the tooth and placed in the gingival sulcus, thereby resting against the subgingival defect section of the tooth tissue. At this time, the first locking mechanism is used to lock the relative position of the push rod 3 and the mounting block 2 to maintain the support of the gingival push piece 4 on the tooth, thereby achieving the technical effect of being able to provide continuous and stable support to the gingival push piece without the operator having to occupy his hands extra.

[0028] In various embodiments, the connection between the mounting block 2 and the clamping arm 1 can adopt any conventional connection means that can be thought of by a person skilled in the art. A fixed rod, strip or plate-like structure can be used to connect the mounting block 2 to the clamping arm 1 without hindering the operation of the person, so that the mounting block 2 is located in front of the outer side of the tooth row. In other embodiments, in order to facilitate the adjustment of the position of the mounting block 2 so that it is facing a specific tooth, various existing movable connection methods can be adopted, such as providing a plurality of rod-like connection structures of different lengths, and the connection structure can be detachably connected between the clamping arm 1 and the mounting block 2 by means of snapping, locking, fastening or magnetic attraction, and the connection structure of different lengths can be replaced and adjusted according to different needs so that the mounting block 2 is facing a specific tooth. A guide structure such as a sliding rod, a sliding rail or a sliding bar can also be connected to the clamping arm 1, and the mounting block 2 can be set on the guide structure in a sliding connection manner, so as to adjust the position of the mounting block 2 so that it is facing different teeth.

[0029] Based on this, a specific embodiment is given, which further includes: a sliding rod 5, which is horizontally fixedly connected to the clamping arm 1 on the buccal side of the rubber dam clamp, and the extension direction of the sliding rod 5 is perpendicular to the first channel, and a horizontal second channel is opened inside the mounting block 2, and both ends of the second channel are connected to the outside of the mounting block 2, the second channel is perpendicular to the first channel, and the sliding rod 5 is slidably sleeved in the second channel; a second locking mechanism is provided on the mounting block 2, for locking the relative position between the mounting block 2 and the sliding rod 5.

[0030] In this embodiment, a sliding sleeve is used to slide the mounting block 2 onto the slide bar 5. This arrangement not only allows the mounting block 2 to be adjusted horizontally so that it can be aligned with different teeth, but also, unlike a sliding connection, allows the mounting block 2 to rotate about the slide bar 5, thereby adjusting the angle of the gingival pusher 4 connected to the mounting block 2. This provides more flexible adjustability and enhances the adaptability of the device. After adjusting to the angle and position suitable for the target tooth, the second locking mechanism is locked.

[0031] In each embodiment, the second locking mechanism and the first locking mechanism can adopt various conventional technical means that can be thought of by those skilled in the art, such as snapping, fastening or magnetic attraction to achieve the locking effect.

[0032] Furthermore, in view of the individual differences in the outer surface shape of the teeth during the process of spreading the gums and supporting the outer wall of the teeth, the gum pusher 4 needs to be able to fine-tune to adapt to the outer surfaces of the teeth of various curvatures and inclinations. Therefore, in particular, the gum pusher 4 needs to be hinged to the end of the push rod 3 facing the teeth, and the gum pusher 4 can rotate around the hinge as the rotation base point, and its rotation axis is parallel to the second channel and / or the first channel. Through the above arrangement, the gum pusher 4 can rotate in at least one direction, thereby having the most basic ability to fine-tune and match different tooth shapes.

[0033] Furthermore, the hinge structure in this embodiment utilizes a ball-and-socket joint, with the gum pusher 4 being hinged to the end of the push rod 3 facing the tooth. This structure provides rotational freedom in multiple dimensions, giving the gum pusher 4 flexible and variable fine-tuning capabilities. In each embodiment, the ball in the ball-and-socket structure can be fixedly connected to the gum pusher 4 or to the push rod 3.

[0034] Preferably, a sphere 41 is fixedly connected to the side of the gum push piece 4 facing away from the teeth, and a hemispherical shell 31 is fixedly connected to the end of the push rod 3 facing the teeth. The sphere 41 is placed in the hemispherical shell 31, thereby realizing a ball-and-socket hinge connection between the gum push piece 4 and the push rod 3, and a friction damping layer 32 is connected to the surface of the sphere 41 and / or the inner side of the hemispherical shell 31.

[0035] After the above-mentioned setting, since the external space occupied by the ball 41 in the ball-and-socket structure is smaller than the structure where the ball-and-socket is located (the hemispherical shell 31 in this embodiment), it is more suitable to be set on the gum pusher 4 which is closer to the gums, thereby reducing the space occupied and reducing the possibility of contact between the ball-and-socket structure and the gums. At the same time, by setting the friction damping layer 32, the resistance of the ball 41 during movement is increased, making its movement and support more stable, and it will not be easily moved due to gravity and shaking, making it inconvenient to operate.

[0036] In this embodiment, the friction damping layer uses rubber material because it has good friction damping effect, stable chemical properties and will not absorb liquid in the mouth. In other embodiments, silicone, soft resin and other non-absorbent materials available to those skilled in the art can also be used to make the friction damping layer.

[0037] Furthermore, this embodiment provides a specific first locking mechanism, referring to Figure 2 A vertical first threaded channel is also provided on the mounting block 2, and the first threaded channel is connected to the first channel. The first locking mechanism includes a fastening bolt 61, and the fastening bolt 61 is threadedly connected to the first threaded channel, and the end of the fastening bolt 61 facing the inside of the mounting block 2 can extend into the first channel so as to press and tighten the push rod 3.

[0038] This structure is based on the sliding sleeve structure of the mounting block 2 and the push rod 3. Through the close tightening of the fastening bolt, it can simultaneously restrict the sliding of the push rod 3 along the first channel and the rotation of the push rod 3 in the first channel, thereby achieving an effective locking effect. Preferably, in this embodiment, the first threaded passage is opened at the upper portion of the first channel, and the fastening bolt 61 enters vertically from above. The path of the fastening bolt entering from above can well meet the operating space requirements during gingival retraction and repair operations.

[0039] Furthermore, this embodiment provides a specific second locking mechanism, referring to Figure 1 The second locking mechanism includes two fastening nuts 62. The outer surface of the slide rod is provided with threads matching the fastening nuts 62. The two fastening nuts 62 are both threadedly connected to the slide rod, and the mounting block 2 is located between the two fastening nuts 62. The two fastening nuts 62 can respectively rest on both sides of the mounting block 2 in the length direction of the slide rod 5, thereby locking the mounting block 2.

[0040] Furthermore, the gum pusher 4 is in the shape of an arc-shaped plate, and the curvature of the arc-shaped plate is configured to fit the outer surface of the tooth.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gingival retraction and protection device in combination with a rubber dam, comprising a rubber dam clamp for fixing a portion of the rubber dam between a tooth and a clamping arm (1) of the rubber dam clamp, characterized in that: The gingival retraction and gingival protection device combined with the rubber dam further comprises: A mounting block (2) is connected to the clamp arm (1) on the buccal side of the rubber dam clamp, and has a horizontal first channel formed therein. Both ends of the first channel are in communication with the outside of the mounting block (2), and the extension direction of the first channel is perpendicular to the long axis of the tooth; A push rod (3) is slidably sleeved in the first channel, and the push rod (3) can slide in a direction close to or away from the teeth; A first locking mechanism is provided on the mounting block (2) and is used to lock the relative position between the mounting block (2) and the push rod (3); The gum pushing piece (4) is hinged to one end of the push rod (3) facing the teeth, and the gum pushing piece (4) can be placed in the gingival sulcus and abut against the tooth surface at the gum.

2. The gingival retraction and gingival protection device combined with a rubber dam according to claim 1, characterized in that: Also includes: A slide rod (5) is horizontally fixedly connected to the clamp arm (1) on the buccal side of the rubber dam clamp, and the extension direction of the slide rod (5) is perpendicular to the first channel. A horizontal second channel is opened inside the mounting block (2), and both ends of the second channel are connected to the outside of the mounting block (2). The second channel is perpendicular to the first channel, and the slide rod (5) is slidably sleeved in the second channel. The second locking mechanism is provided on the mounting block (2) and is used to lock the relative position between the mounting block (2) and the slide bar (5).

3. The gingival retraction and gingival protection device combined with rubber dam according to claim 2, characterized in that: The gum pushing piece (4) is hinged to one end of the push rod (3) facing the teeth, and the gum pushing piece (4) can rotate with the hinge as the rotation base point, and its rotation axis is parallel to the second channel and / or the first channel.

4. The gingival retraction and gingival protection device combined with a rubber dam according to claim 3, characterized in that: The gum pushing piece (4) is hinged to the end of the push rod (3) facing the teeth in a ball-and-socket hinge manner.

5. The gingival retraction and gingival protection device combined with rubber dam according to claim 4, characterized in that: The side of the gum pushing piece (4) facing away from the teeth is fixedly connected to a sphere (41), and the end of the push rod (3) facing the teeth is fixedly connected to a hemispherical shell (31). The sphere (41) is placed in the hemispherical shell (31), thereby realizing a ball-and-socket hinge connection between the gum pushing piece (4) and the push rod (3), and a friction damping layer (32) is connected to the surface of the sphere (41) and / or the inner side of the hemispherical shell (31).

6. The gingival retraction and gingival protection device combined with rubber dam according to claim 2, characterized in that: The mounting block (2) is also provided with a vertical first threaded channel, the first threaded channel being connected to the first channel, the first locking mechanism comprising a fastening bolt (61), the fastening bolt (61) being threadedly connected to the first threaded channel, and the end of the fastening bolt (61) facing the inside of the mounting block (2) being able to extend into the first channel so as to press and fasten the push rod (3).

7. The gingival retraction and gingival protection device combined with rubber dam according to claim 2, characterized in that: The second locking mechanism includes two fastening nuts (62), the outer surface of the slide rod (5) is provided with threads matching the fastening nuts (62), the two fastening nuts (62) are both threadedly connected to the slide rod (5), and the mounting block (2) is located between the two fastening nuts (62), and the two fastening nuts (62) can respectively abut against both sides of the mounting block (2) in the length direction of the slide rod (5), thereby locking the mounting block (2).

8. The gingival retraction and gingival protection device combined with rubber dam according to claim 1, characterized in that: The gum pusher (4) is in the shape of an arc-shaped plate, and the curvature of the arc-shaped plate is configured to fit the outer side surface of the tooth.

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