Subgingival guide plate device for lowering step surface of guide plate

Abstract

The subgingival guide plate device for lowering the step surface of the guide plate comprises a guide plate main body and a positioning guide ring formed on the guide plate main body, the guide plate body comprises a tongue side binding face and a lip side binding face which are connected, a wrapping cavity is formed between the tongue side binding face and the lip side binding face, and the positioning guide ring is located at the joint of the tongue side binding face and the lip side binding face. A positioning hole communicated with the wrapping cavity is formed in the middle of the positioning guide ring, and an observation hole corresponding to the positioning hole is formed in the tongue side binding face. Compared with the prior art, when the implant is embedded too deep or too long, the positioning guide ring can form a step surface required by a drill bit prepared hole under the action of the guide plate main body and the positioning guide ring, so that the drill bit can penetrate through the positioning guide ring to drill downwards, the prepared hole depth of the drill bit is ensured to be sufficient, the prepared hole depth is prevented from being shallower than the expected depth, and the surgical effect is prevented from being influenced; and even planting failure is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of oral implant guides, and particularly relates to a subgingival guide device for reducing the step surface of a guide plate. Background Art

[0002] Oral implant refers to surgically implanting artificial implants into the jawbone at the toothless site, and restoring functions such as chewing and appearance of patients by connecting abutments and crowns on the jawbone. A planting guide, also known as a dental implant surgical guide, is short for a dental implant guiding template. It is a personalized surgical auxiliary instrument that accurately transfers the pre-determined plan before implantation to the patient.

[0003] During dental implant surgery, implanting the implant into the correct position on the alveolar bone and ensuring the accurate direction and depth are important prerequisites for ensuring the success of implantation. As a carrier for transmitting information, the implant guide can accurately reflect the number, position, direction, angle, and depth of the implants designed before surgery during the operation, guiding the accurate implantation of the implants during the operation, and improving the accuracy of the surgery and the implant restoration effect.

[0004] Traditional implant guides are made on a plaster model, that is, the so-called model method for making guides. Traditional implant guides are used to guide the position and direction of implant restorations, and have good fitting and retention effects. They are clinically mostly used for patients with relatively good alveolar bone conditions. However, the application of conventional guides in clinics has limitations: when the implant is buried too deep or a long implant is implanted, a deeper hole needs to be prepared. However, due to the thick gingiva of the patient, under the action of the existing drill bits, the thickness of the step surface of the guide plate still cannot reach the length of the metal guide ring, resulting in the metal guide ring not being able to be completely placed into the guide plate hole.

[0005] In the prior art, usually the thickness of the step surface is increased upward, but this technical method will cause the depth of the prepared hole by the drill bit to not reach the designed implant depth, and the depth of the prepared hole is shallower than expected, thus affecting the effect of the implant surgery and even leading to the failure of the implant surgery.

[0006] At the same time, when the implant is buried too deep or a long implant is implanted, the step surface of the conventional guide plate is too short. To enable the metal guide ring to be completely placed, the step surface of the guide plate must be thickened. However, the length of the existing drill bits is limited. After the step surface of the guide plate is thickened, the depth of the hole prepared by the existing drill bits cannot reach the expected depth. Utility Model Content

[0007] The utility model aims to overcome the above-mentioned defects in the prior art, and provides a subgingival guide device for reducing the step surface of a guide plate, which has a simple structure, is safe and reliable, and is convenient for observation.

[0008] To achieve the above-mentioned utility model purpose, the present utility model adopts the following technical solutions: A subgingival guide plate device for reducing the step surface of the guide plate, comprising a guide plate main body and a positioning guide ring formed on the guide plate main body; the guide plate main body includes a tongue-side fitting surface and a lip-side fitting surface connected to each other, a covering cavity is formed between the tongue-side fitting surface and the lip-side fitting surface, and the positioning guide ring is located at the connection of the tongue-side fitting surface and the lip-side fitting surface; a positioning hole communicating with the covering cavity is formed in the middle of the positioning guide ring, and an observation hole corresponding to the positioning hole is formed on the tongue-side fitting surface.

[0009] As a preferred solution of the present utility model, the positioning guide ring is a sunken structure formed on the guide plate main body, and the observation hole is located below the guide plate main body.

[0010] As a preferred solution of the present utility model, calibration holes communicating with the covering cavity are formed on both sides of the positioning guide ring, and the calibration holes are located on opposite sides of the positioning hole.

[0011] As a preferred solution of the present utility model, the calibration holes are formed at the connection of the positioning guide ring and the guide plate main body.

[0012] As a preferred solution of the present utility model, a contact surface is further formed on the guide plate main body, and a contact hole communicating with the covering cavity is formed on the contact surface.

[0013] As a preferred solution of the present utility model, the contact surface is formed at the connection of the tongue-side fitting surface and the lip-side fitting surface.

[0014] As a preferred solution of the present utility model, the contact surface is a sunken structure formed on the guide plate main body.

[0015] As a preferred solution of the present utility model, a stabilizing rod for strengthening the structural strength of the guide plate main body is provided on the lip-side fitting surface.

[0016] As a preferred solution of the present utility model, an arc-shaped rod for supporting the positioning guide ring is formed on the lip-side fitting surface.

[0017] As a preferred solution of the present utility model, the guide plate main body and the positioning guide ring are of an integral structure.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the implant is buried too deep or an overly long implant is implanted, under the action of the guide plate main body and the positioning guide ring, the positioning guide ring can form the step surface required for drill bit preparation holes, so that the drill bit can drill through the positioning guide ring, ensuring that the preparation hole depth of the drill bit is sufficient, preventing the preparation hole depth from being shallower than expected and affecting the surgical effect, or even resulting in implant failure;

[0019] Meanwhile, for patients with a small mouth opening, a longer drill bit will interfere with the patient's oral cavity and it is impossible to complete the hole preparation. By using the positioning guide ring, a shorter drill bit can reach the hole preparation depth required by the design scheme, meeting the oral implant needs of patients with a small mouth opening;

[0020] Compared with the conventional guide plate, the present invention designs an observation hole on the guide plate body, which is convenient for doctors to observe the intraoperative situation in a timely manner when using the guide plate body for hole preparation during the implant surgery;

[0021] On the basis of the conventional guide plate, a stabilizing rod and an arc rod are added, enhancing the strength of the guide plate body and the positioning guide ring, preventing the deformation of the guide plate from affecting the effect of the implant surgery, and ensuring the accuracy of the hole preparation;

[0022] The height of the positioning guide ring can be reduced by flap surgery before the operation, and enough space can be reserved for the toothless area through the flap surgery, so that the thickness of the step surface is adapted to the thickness of the positioning guide ring, solving the problem that the metal guide ring cannot be completely placed in the guide plate due to insufficient thickness of the step surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural view of the present utility model;

[0024] Figure 2 is an axonometric view of the present utility model;

[0025] Reference numerals: guide plate body 1, lingual fitting surface 11, labial fitting surface 12, positioning guide ring 2, positioning hole 21, covering cavity 3, observation hole 4, calibration hole 5, contact surface 6, contact hole 61, stabilizing rod 7, arc rod 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0027] As Figure 1 - Figure 2 shown, a subgingival guide plate device for reducing the step surface of the guide plate includes a guide plate body 1 and a positioning guide ring 2 formed on the guide plate body 1; the guide plate body 1 includes a connected lingual fitting surface 11 and a labial fitting surface 12, and a covering cavity 3 is formed between the lingual fitting surface 11 and the labial fitting surface 12, and the positioning guide ring 2 is located at the connection of the lingual fitting surface 11 and the labial fitting surface 12; a positioning hole 21 communicating with the covering cavity 3 is formed in the middle of the positioning guide ring 2, and an observation hole 4 corresponding to the positioning hole 21 is formed on the lingual fitting surface 11.

[0028] The guide plate body 1 is sleeved on the jawbone, the positioning guide ring 2 is arranged corresponding to the toothless area of the jawbone, the lingual fitting surface 11 and the labial fitting surface 12 are respectively arranged in a fitting manner on the inner and outer sides of the jawbone, the covering cavity 3 wraps the gingiva and the dental arch, and supports the guide plate body 1 and the positioning guide ring 2 under the action of the dental arch.

[0029] The position of the positioning guide ring 2 is set according to the tooth-deficient area of the jawbone, so that the positioning guide ring 2 is set at the required position of the guide plate body 1. The positioning hole 21 is used to perform the drill hole preparation operation, and the observation hole 4 is used to observe the situation of the drill bit during the hole preparation process.

[0030] The positioning guide ring 2 is a sunken structure formed on the guide plate body 1. The observation hole 4 is located below the guide plate body 1. The drill bit is arranged through the positioning guide ring 2 during work, and the observation hole 4 located below the guide plate body 1 is convenient for observing the working condition of the drill bit.

[0031] Calibration holes 5 communicating with the covering cavity 3 are formed on both sides of the positioning guide ring 2. The calibration holes 5 are located on the opposite sides of the positioning hole 21. The calibration holes 5 are used to observe the setting situation of the positioning guide ring 2, so as to ensure that the position of the positioning guide ring 2 corresponds to the gingival step surface, thereby calibrating the position of the positioning guide ring 2. The calibration holes 5 are formed at the connection between the positioning guide ring 2 and the guide plate body 1, and the calibration holes 5 located at the connection between the positioning guide ring 2 and the guide plate body 1 ensure better stability.

[0032] A contact surface 6 is also formed on the guide plate body 1. A contact hole 61 communicating with the covering cavity 3 is formed on the contact surface 6. The contact surface 6 is used to contact the dental arch, and the dental arch is observed through the contact hole 61 to observe the contact situation between the guide plate body 1 and the dental arch, so as to ensure that the guide plate body 1 is stably sleeved on the dental arch.

[0033] The contact surface 6 is formed at the connection between the lingual fitting surface 11 and the labial fitting surface 12. The contact surface 6 is arranged corresponding to the dental arch. The contact surface 6 is a sunken structure formed on the guide plate body 1, and the thickness of the contact surface 6 is thin, so as to facilitate judging the contact situation between the contact surface 6 and the dental arch.

[0034] A stabilizing rod 7 for strengthening the structural strength of the guide plate body 1 is provided on the labial fitting surface 12 to prevent the guide plate body 1 from deforming and affecting the accuracy of hole preparation.

[0035] An arc-shaped rod 8 for supporting the positioning guide ring 2 is formed on the labial fitting surface 12. The arc-shaped rod 8 is arranged around part of the positioning guide ring 2 to enhance the strength of the positioning guide ring 2 and prevent the positioning guide ring 2 from deforming and affecting the accuracy of hole preparation.

[0036] The guide plate body 1 and the positioning guide ring 2 are of an integral structure, and the guide plate body 1 and the positioning guide ring 2 are integrally formed by 3D printing.

[0037] During actual use, oral data of the patient is taken, an impression material is used to make an impression, a plaster model is poured, an implant plan is designed, and the number, position, direction, angle, and depth of the implants are determined, etc. For patients who need to have a flap operation, the plaster model is imported into the design software, the flap operation is simulated in the design software, the plaster model is excised, and it is observed in combination with CT. The lowest point of the excised plaster cannot be below the bone surface.

[0038] Before the operation, a flap operation is performed on the edentulous area of the patient to reduce the height of the step surface in the edentulous area, reserve enough space to make the thickness of the step surface sufficient, and make the thickness of the step surface match the thickness of the positioning guide ring 2, so as to solve the problem that the positioning guide ring 2 cannot be completely inserted into the guide plate body 1 due to insufficient thickness of the step surface.

[0039] Observation holes 4 are designed on the guide plate body 1, and a stabilizing rod 7 and an arc rod 8 are added to the guide plate body 1 to ensure the strength of the guide plate body 1.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0041] Although the terms such as guide plate body 1, lingual fitting surface 11, labial fitting surface 12, positioning guide ring 2, positioning hole 21, covering cavity 3, observation hole 4, calibration hole 5, contact surface 6, contact hole 61, stabilizing rod 7, arc rod 8, etc. are used more in the drawings herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present utility model. Interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A subgingival guide plate device for reducing the step surface of a guide plate, characterized in that, It includes a guide plate body (1) and a positioning guide ring (2) formed on the guide plate body (1); the guide plate body (1) includes a tongue-side fitting surface (11) and a lip-side fitting surface (12) that are connected to each other. A covering cavity (3) is formed between the tongue-side fitting surface (11) and the lip-side fitting surface (12). The positioning guide ring (2) is located at the connection of the tongue-side fitting surface (11) and the lip-side fitting surface (12); a positioning hole (21) communicating with the covering cavity (3) is formed in the middle of the positioning guide ring (2), and an observation hole (4) corresponding to the positioning hole (21) is formed on the tongue-side fitting surface (11).

2. The subgingival guide plate device for reducing the step surface of the guide plate according to claim 1, wherein The positioning guide ring (2) is a sunken structure formed on the guide plate body (1), and the observation hole (4) is located below the guide plate body (1).

3. The subgingival guide plate device for reducing the step surface of the guide plate according to claim 1, wherein, Calibration holes (5) communicating with the covering cavity (3) are formed on both sides of the positioning guide ring (2), and the calibration holes (5) are located on opposite sides of the positioning hole (21).

4. The subgingival guide plate device for reducing the step surface of the guide plate according to claim 3, characterized in that, The calibration holes (5) are formed at the connection of the positioning guide ring (2) and the guide plate body (1).

5. A subgingival guide plate device for reducing the step surface of a guide plate according to claim 1, characterized in that, A contact surface (6) is further formed on the guide plate body (1), and a contact hole (61) communicating with the covering cavity (3) is formed on the contact surface (6).

6. The subgingival guide plate device for reducing the step surface of the guide plate according to claim 5, wherein The contact surface (6) is formed at the connection of the tongue-side fitting surface (11) and the lip-side fitting surface (12).

7. A subgingival guide plate device for reducing the step surface of a guide plate according to claim 5, characterized in that, The contact surface (6) is a sunken structure formed on the guide plate body (1).

8. A subgingival guide plate device for reducing the step surface of the guide plate according to claim 1, characterized in that, A stabilizing rod (7) for strengthening the structural strength of the guide plate body (1) is provided on the lip-side fitting surface (12).

9. A subgingival guide plate device for reducing the step surface of a guide plate according to claim 1, characterized in that, An arc-shaped rod (8) for supporting the positioning guide ring (2) is formed on the lip-side fitting surface (12).

10. A subgingival guide plate device for reducing the step surface of a guide plate according to claim 1, wherein, The guide plate body (1) and the positioning guide ring (2) are of an integral structure.

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