A bone and tooth combined support type trans-zygomatic implant surgical guide plate assembly

Abstract

The utility model discloses a kind of bone and tooth joint support type transzygomatic implant surgical guide plate assembly, including respectively corresponding left guide plate and right guide plate of left and right two sides maxillary remaining tooth installation in oral cavity, left guide plate and right guide plate structure are approximately all provided with the window structure connected by fixed structure, spare hole positioning structure, tooth positioning structure and zygoma entry point positioning structure, the width of window structure and transzygomatic implant diameter match, spare hole positioning structure is set and is provided with at least two spare holes corresponding to alveolar bone, maxilla or zygoma, tooth positioning structure is designed according to preoperative patient three-dimensional model and has at least one with tooth shape matching's positioning tooth hole, zygoma entry point positioning structure and the implant direction of transzygomatic implant is set angle, window structure is communicated with zygoma entry point positioning structure. The utility model is in the patient in maxillary remaining tooth, using remaining tooth plus maxillary joint support type guide plate further improves the accuracy of positioning guide, improves transzygomatic implant success rate.

Description

Technical Field

[0001] This utility model relates to a bone and tooth combined support transzygomatic implant surgical guide assembly, belonging to the field of oral implant instrument technology. Background Technology

[0002] The zygomatic bone grafting technique was proposed in 1988 by Professor Brnemark's team in Sweden. It's a restorative method that uses implants inserted through the zygomatic bone to provide support for cases of severe maxillary bone defects or alveolar bone atrophy. The clinical success rate is as high as 96.04%. Zygomatic bone grafting restorations do not require bone grafting, have a short healing time, and allow for immediate implantation and weight-bearing. It has gained patient approval in terms of comfort, aesthetics, and pronunciation.

[0003] Transzygomatic implantation involves accessing the maxillary alveolar ridge, penetrating the maxillary sinus, or implanting the implant along the buccal bone wall of the maxillary sinus into the zygomatic bone. One to three transzygomatic implants can be placed into one side of the zygomatic bone. The dense bone of the zygomatic bone helps retain the implant, achieving effective initial stability. Simultaneously, 0 to 4 conventional dental implants are placed in the anterior region to complete the restoration of the maxillary dentition. Clinically, transzygomatic implants are commonly 30.0–52.5 mm in length. The zygomatic bone is surrounded by complex anatomy, containing many important organs. Common clinical problems include implants placed too close to the orbit, entering the infratemporal fossa, or insufficient implantation depth leading to poor initial stability. The location, extent, and height of the maxillary sinus window are crucial for determining the zygomatic bone base, three-dimensional orientation, cavity preparation and enlargement, and implant placement.

[0004] Currently, most guide plates used for zygomatic implantation are single-bone supported, which suffers from insufficient positioning accuracy and needs improvement. Utility Model Content

[0005] To address the aforementioned technical problems, this invention provides a bone and tooth combined support type transzygomatic implant surgical guide assembly. In patients with remaining maxillary teeth, the use of the remaining teeth combined with the jawbone combined support guide further improves the accuracy of positioning and guidance, thereby increasing the success rate of transzygomatic implantation.

[0006] To achieve the above-mentioned technical objectives and effects, this application provides the following technical solution:

[0007] A bone-and-tooth combined-support transzygomatic implant surgical guide assembly includes a left guide and a right guide, respectively installed for the remaining maxillary teeth on the left and right sides of the oral cavity. The left and right guides have similar structures and each has a window structure, a pre-hole positioning structure, a tooth positioning structure, a zygomatic bone entry point positioning structure, and a fixation structure. The width of the window structure matches the diameter of the transzygomatic implant. The pre-hole positioning structure is set to the alveolar bone, maxilla, or zygomatic bone and has at least two pre-holes. The tooth positioning structure is designed according to the preoperative three-dimensional model of the patient and has at least one positioning hole that matches the shape of the tooth. The zygomatic bone entry point positioning structure is at a set angle to the implantation direction of the transzygomatic implant. The window structure is connected to the zygomatic bone entry point positioning structure. The window structure, the pre-hole positioning structure, the tooth positioning structure, and the zygomatic bone entry point positioning structure are connected through the fixation structure.

[0008] Preferably, the window structure and the cheekbone entry point positioning structure have circular channels that are interconnected and coaxially arranged.

[0009] Preferably, the backup hole positioning structure has three backup holes, which are distributed in a triangular pattern.

[0010] Furthermore, the prepared hole is a through-hole.

[0011] Preferably, the fixing structure matches the shape of the human oral vestibule.

[0012] Preferably, both the left guide plate and the right guide plate are made of metal or resin.

[0013] The bone and tooth combined support type transzygomatic implant surgical guide assembly provided by this utility model has the following advantages:

[0014] This invention relates to a bone and tooth combined support type transzygomatic implant surgical guide assembly. By using left and right guide plates installed corresponding to the remaining maxillary teeth on both sides of the oral cavity, transzygomatic implantation is performed in conjunction with these guide plates. This achieves multi-position bone support, which can reduce angular deviation during transzygomatic implantation, improve operational accuracy, and further increase the success rate of transzygomatic implantation. Attached Figure Description

[0015] Figure 1 A front view of the left guide plate provided in an embodiment of this utility model;

[0016] Figure 2 Rear view of the left guide plate provided in an embodiment of this utility model;

[0017] Figure 3 A front view of the right guide plate provided in an embodiment of this utility model;

[0018] Figure 4Rear view of the right guide plate provided in an embodiment of this utility model;

[0019] Figure 5 A schematic diagram of a bone and tooth combined support transzygomatic implant surgical guide assembly provided in an embodiment of this utility model;

[0020] In the picture:

[0021] 1-Left guide plate; 2-Right guide plate; 3-Window opening structure; 4-Preparation hole positioning structure; 41-Preparation hole; 5-Tooth positioning structure; 51-Positioning tooth hole; 6-Zygomatic bone entry point positioning structure; 7-Fixing structure. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figures 1-5 A bone and tooth combined support transzygomatic implant surgical guide assembly includes a left guide plate 1 and a right guide plate 2, respectively installed for the remaining maxillary teeth on the left and right sides of the oral cavity. The left guide plate 1 and the right guide plate 2 have similar structures and are provided with a window structure 3, a hole positioning structure 4, a tooth positioning structure 5, a zygomatic bone entry point positioning structure 6, and a fixation structure 7.

[0024] The width of the window structure 3 matches the diameter of the zygomatic implant; the preparation hole positioning structure 4 is set to correspond to the shape of any bone in the human oral cavity, such as the alveolar bone, maxilla, or zygomatic bone, and the preparation hole positioning structure 4 has at least two preparation holes 41, which are used to guide the drill bit to avoid key structures such as the infraorbital nerve and maxillary sinus when penetrating the zygomatic bone; the tooth positioning structure 5 is designed according to the three-dimensional model of the patient before the operation and has at least one positioning tooth hole 51 that matches the shape of the remaining tooth, and then the guide plate is fixed by fitting the positioning tooth hole 51 with the remaining tooth; the zygomatic bone entry point positioning structure 6 is at a set angle to the implantation direction of the zygomatic implant, and the window structure 3, the preparation hole positioning structure 4, the tooth positioning structure 5 and the zygomatic bone entry point positioning structure 6 are connected by the fixing structure 7, which matches the shape of the human oral vestibule.

[0025] Furthermore, both the left guide plate 1 and the right guide plate 2 are made of metal or resin. Specifically, metal guide plates are preferred for complex surgeries (such as zygomatic / pterygoid implantation) because their stability and precision are crucial for avoiding critical structures such as nerves and blood vessels. For routine or minimally invasive surgeries, resin guide plates are more economical and adaptable, suitable for patients with limited budgets or those requiring rapid recovery. Material selection needs to be planned preoperatively using 3D printing technology, and the final choice should be based on the patient's bone condition, surgical complexity, and the doctor's assessment.

[0026] Reference Figures 1-4 The window structure 3 is connected to the zygomatic bone entry point positioning structure 6. The window structure 3 and the zygomatic bone entry point positioning structure 6 have interconnected and coaxially arranged circular channels. The cooperation between the window structure 3 and the zygomatic bone entry point positioning structure 6 guides the direction of zygomatic implant placement, reducing the possibility of zygomatic implant wobbling under single-point guidance. Two-point guidance improves guidance stability.

[0027] Reference Figures 1-4 In a further embodiment, the pre-hole positioning structure 4 preferably has three pre-holes 41, which are arranged in a triangular pattern and are through-holes. During zygomatic implant surgery, the pre-holes 41 can guide the coordinated operation of the conventional implant drill and the long zygomatic drill in stages, improving surgical safety. At the same time, the multi-hole design can disperse surgical stress and reduce the risk of maxillary sinus perforation or nerve damage, which is especially suitable for cases with complex bone conditions.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A bone and tooth combined-support transzygomatic implant surgical guide assembly, characterized in that, The device includes a left guide plate (1) and a right guide plate (2) respectively installed for the remaining maxillary teeth on the left and right sides of the oral cavity. The left guide plate (1) and the right guide plate (2) have similar structures and are provided with a window structure (3), a pre-hole positioning structure (4), a tooth positioning structure (5), a zygomatic bone entry point positioning structure (6), and a fixing structure (7). The width of the window structure (3) matches the diameter of the zygomatic implant. The pre-hole positioning structure (4) is set for alveolar bone, maxilla, or zygomatic bone. The pre-hole positioning structure (4) is provided with at least two pre-holes (41). The tooth positioning structure (5) is designed according to the three-dimensional model of the patient before the operation and has at least one positioning tooth hole (51) that matches the shape of the tooth. The zygomatic bone entry point positioning structure (6) is at a set angle to the implantation direction of the zygomatic implant. The window structure (3) is connected to the zygomatic bone entry point positioning structure (6). The window structure (3), the pre-hole positioning structure (4), the tooth positioning structure (5), and the zygomatic bone entry point positioning structure (6) are connected by the fixing structure (7).

2. The bone and tooth combined support transzygomatic implant surgical guide assembly as described in claim 1, characterized in that, The window structure (3) and the cheekbone entry point positioning structure (6) have circular channels that are interconnected and coaxially arranged.

3. The bone and tooth combined support transzygomatic implant surgical guide assembly as described in claim 1, characterized in that, The pre-hole positioning structure (4) is provided with three pre-holes (41), which are arranged in a triangular pattern.

4. The bone and tooth combined support transzygomatic implant surgical guide assembly as described in claim 3, characterized in that, The preparation hole (41) is a through-hole.

5. The bone and tooth combined support transzygomatic implant surgical guide assembly as described in claim 1, characterized in that, The fixed structure (7) is matched to the shape of the human oral vestibule.

6. The bone and tooth combined support transzygomatic implant surgical guide assembly as described in claim 1, characterized in that, Both the left guide plate (1) and the right guide plate (2) are made of metal or resin.

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