Universal guide plate for double implantation

Abstract

The utility model discloses a double planting universal guide plate which comprises a plate body, the plate body is S-shaped, guide plate parts are arranged at two ends of the plate body, one surface of each guide plate part is a drilling-in surface, the other surface of each guide plate part is a drilling-out surface, the drilling-out surfaces of the guide plate parts at the two ends are arranged on two surfaces of the plate body, and a pair of planting guide holes is formed in each guide plate part. And each pair of planting guide holes are arranged in an inclined cohesion manner, and cohesion is performed from the drilling-in hole surface to the drilling-out hole surface. The guide plate parts are arranged at the two ends of the plate body, can be used for implanting teeth on the left side and the right side correspondingly, can be used for implanting teeth at different side positions, and is flexible to use; according to the implant, the implant guide holes are arranged in pairs, and the two paired implant guide holes are obliquely cohesive, so that a relatively good drilling inclination can be stably obtained, the implant is obliquely implanted, tooth root bifurcation of a real tooth body can be simulated, stress dispersion is facilitated, occlusal stress dispersion is achieved, edge bone resorption is reduced, and the stress performance of the implant tooth is improved.

Description

Technical Field

[0001] This utility model belongs to the field of dental implant tools, and specifically relates to a universal guide plate for dual implantation. Background Technology

[0002] Clinically, the loss of the first molar may lead to an excessively wide mesiodistal diameter and a narrow buccal-lingual diameter in the edentulous space. Alternatively, long-term loss of the first and second premolars may also cause the second molar to move mesially, resulting in a narrow buccal-lingual diameter and limited space for mesiodistal restoration. The conventional restoration method is to implant a single implant to restore the mandibular first molar shape. In this case, if a conventional or narrow-diameter implant is used, the buccal-lingual and mesiodistal diameters of the crown will be much larger than the implant diameter, forming a "T"-shaped cantilever. This will cause the implant to be subjected to excessive cantilever force after restoration, resulting in excessive load and affecting the implant restoration effect. This can easily lead to implant biological and mechanical complications, such as peri-implantitis, implant and screw breakage. Biomechanical studies have found that double implants can effectively counteract horizontal torsional forces and prevent the central screw in the implant from loosening. Alveolar bone has the strongest resistance to axial loads but is weaker against tensile and shear forces. In finite element analysis, compared with the same magnitude of vertical force, lateral force can increase shear and tensile stresses. Lateral force weakens the mechanical properties of bone tissue and threatens the weak interface between the implant and alveolar bone. Cantilever is considered a common factor causing excessive lateral stress on the implant. Therefore, occlusal design should avoid cantilever and eliminate lateral forces as much as possible. Increasing the number of implants can be an option.

[0003] For edentulous gaps exceeding 14mm in mesiodistal diameter following molar loss, using a standard 4mm single implant for support and restoration can result in a "T"-shaped cantilever due to the significantly larger buccal and mesiodistal diameters of the crown compared to the implant diameter. This leads to excessive cantilever force on the implant after restoration, causing overload and negatively impacting the implant's effectiveness. Therefore, for single molar loss with relatively large edentulous gaps, double implants may be necessary.

[0004] Currently, there are generally two methods for drilling holes for double implants. One method is for dentists to drill using their experience and feel, commonly known as "freehand drilling." This method requires high technical sensitivity and makes it difficult to obtain the optimal position and angle. The other method is to make a personalized guide plate and drill using it. The personalized guide plate can obtain the optimal position and angle, but it requires more time and money and is for single use only. Utility Model Content

[0005] To overcome the shortcomings and problems of existing technologies, this utility model provides a universal guide plate for dual implants, which can stably obtain a better drilling angle, allowing dual implants to be implanted at a better angle. It can mimic the root of a real tooth, which helps to distribute the force and improve the stress performance of the implant.

[0006] This utility model is achieved through the following technical solution:

[0007] A universal guide plate for dual planting includes a plate body that is S-shaped. Both ends of the plate body are provided with guide plate portions. One side of the guide plate portion is a drilling surface, and the other side is a drilling exit surface. The drilling exit surfaces of the guide plate portions at both ends are arranged on both sides of the plate body. Each guide plate portion is provided with a pair of planting guide holes. Each pair of planting guide holes is inclined and converging, and converges from the drilling entry surface to the drilling exit surface.

[0008] Preferably, the included angle between the two planting guide holes in each pair of planting guide holes is 8-12°.

[0009] Preferably, the included angle between the two planting guide holes in each pair of planting guide holes is 10°.

[0010] Preferably, the thickness of the guide plate is 6mm, the diameter of the planting guide hole is 3mm, and the distance between the edges of the two planting guide holes at one end of the drilling surface in each pair of planting guide holes is 3mm.

[0011] Preferably, the cross-section of the guide plate portion, with the center of the planting guide hole as a reference, is an isosceles trapezoidal shape, and the width of the drilled surface is 14mm and the width of the drilled surface is 12mm.

[0012] Preferably, the inner wall of the planting guide hole is provided with a wear-resistant layer.

[0013] Preferably, the plate is made of stainless steel.

[0014] Preferably, directional markings are provided at both ends of the plate.

[0015] The plate of this invention has guide plates at both ends, which can be used for implantation of teeth on the left and right sides, and can handle implantation of teeth in different lateral positions, making it flexible in use. The implant guide holes are set in pairs, and the two implant guide holes in the pair are inclined and convergent, which can obtain a stable and better drilling angle, so that the implant can be installed at an angle, which can simulate the root bifurcation of a real tooth, which is conducive to the distribution of force, achieving occlusal stress dispersion, reducing marginal bone resorption, and improving the stress performance of the implant. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 and Figure 3These are cross-sectional schematic diagrams of the guide plates at both ends of the plate body of this utility model.

[0018] Figure 4 This is a schematic diagram of the dimensions and structure of the guide plate in this utility model.

[0019] In the diagram: 1-plate body, 11-guide plate section, 2-planting guide hole, 21-wear-resistant layer, 3-drilling surface, 4-drilling surface. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a universal guide plate for dual implantation includes a plate body 1, which is made of stainless steel, facilitating sterilization and preventing rust contamination, and can be used multiple times. The plate body 1 is S-shaped, making it easy to operate by placing one end into the oral cavity and the other end easy to grasp.

[0022] The plate 1 is S-shaped, and both ends of the plate 1 are provided with guide plate parts 11. One side of the guide plate part 11 is the drilling surface 3, and the other side is the drilling surface 4. Both guide plate parts 11 are provided with a pair of planting guide holes 2. When in use, the planting guide holes 2 guide the hole to facilitate drilling with a pilot drill. The hole is drilled from the drilling surface 3 and drilled out from the drilling surface 4.

[0023] Each pair of implant guide holes 2 is inclined and converging, extending from the drilled hole surface 3 to the drilled hole surface 4. Guided by these two implant guide holes 2, two inclined implant holes can be drilled into the jawbone, facilitating the inclined placement of the implant into the jawbone. This mimics the root bifurcation of a real tooth, which helps to distribute the force, achieve occlusal stress dispersion, reduce marginal bone resorption, and improve the stress performance of the implant.

[0024] The drilled surfaces 4 of the guide plate portions 11 at both ends are arranged on both sides of the plate body 1, so the convergence directions of the two pairs of implant guide holes 2 are opposite. Since the growth directions of teeth on both sides of the human oral cavity are different, and the convergence directions of the two pairs of implant guide holes 2 are opposite, different implant guide holes 2 of the guide plate portions 11 can be selected to suit implantation of teeth on different sides. Preferably, the included angle between the two implant guide holes in each pair of implant guide holes 2 is 8-12°, and so on. Figure 4 As shown, the angle of angle a is 8-12°. This angle can ensure the dispersion of occlusal stress and the required gap with adjacent teeth without affecting adjacent teeth. Preferably, the included angle between the two implant guide holes 2 of each pair is 10°.

[0025] The thickness of the guide plate portion 11 is 6mm, that is, as Figure 4The dimension of b shown is given. The diameter of the implantation guide hole 2 is 3mm, i.e., as shown... Figure 4 The dimension c shown is given. The distance between the edges of the two planting guide holes 2 at one end of the drilled surface 4 in each pair of planting guide holes 2 is 3mm, i.e., as shown... Figure 4 The dimension d shown is [value]. The cross-section of the guide plate 11, with the center of the planting guide hole 2 as a reference, is an isosceles trapezoidal shape, and the width of the drilled surface is 14mm, i.e. [details omitted]. Figure 4 The dimension 'e' shown has a width of 12mm at the drilled surface, i.e. Figure 4 The dimensions shown are f. According to existing international dental consensus, a minimum distance of 3mm should be maintained between two implants, and a minimum distance of 1.5mm should be maintained between the implant and the natural tooth when designing the guide plate. The remaining hole distance is 3mm, and the distance from the remaining guide hole to the edge is 2mm. The above-mentioned dimensional design well meets the relevant dental design regulations.

[0026] The inner wall of the implantation guide hole 2 is provided with a wear-resistant layer 21, which can prevent drill bit wear and extend service life. The two ends of the plate body 1 are respectively provided with direction marks, such as "L" on one end and "R" on the other end. This makes it convenient for doctors to confirm the direction to be used when taking it.

[0027] The above embodiments are preferred implementations of this utility model and are not intended to limit this utility model. Any obvious substitutions are within the protection scope of this utility model without departing from its inventive concept.

Claims

1. A two-implant universal guide comprising a plate body (1), characterized in that: The plate body is S-shaped, both ends of the plate body are provided with guide plate parts (11), one side of the guide plate part is a drill-in surface (3), the other side is a drill-out surface (4), the drill-out surfaces of the two end guide plate parts are arranged on both sides of the plate body, and a pair of implant guide holes (2) are arranged on each of the two guide plate parts, each pair of implant guide holes is arranged in an inclined and converging manner, and converges from the drill-in hole surface to the drill-out hole surface.

2. The dual implant universal guide of claim 1, wherein: The included angle of the two implant guide holes of each pair of implant guide holes (2) is 8-12°.

3. The dual implant universal guide of claim 2, wherein: The included angle of the two implant guide holes of each pair of implant guide holes (2) is 10°.

4. The dual implant universal guide of claim 3, wherein: The thickness of the guide plate part (11) is 6mm, the hole diameter of the implant guide hole (2) is 3mm, and the distance between the two implant guide holes in each pair of implant guide holes at the edge of the drill-out surface is 3mm.

5. The dual implant universal guide of claim 4, wherein: The cross section of the guide plate part (11) with the center of the implant guide hole as the reference is isosceles trapezoidal, and the width at the drill-out surface is 14mm and the width at the drill-in surface is 12mm.

6. The dual implant universal guide of claim 1, wherein: The inner wall of the implant guide hole (2) is provided with a wear-resistant layer (21).

7. The two-implant universal guide according to any one of claims 1-6, wherein: The plate body (1) is made of stainless steel metal material.

8. The dual implant universal guide of claim 7, wherein: The plate body (1) is provided with direction marks at both ends.

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