Manufacturing method of digital small-size stacked high-retention dental implant surgery guide

Abstract

The present invention provides a digital small-size stacking high-retentive dental implant surgery guide plate and a manufacturing method thereof, comprising the following steps: acquiring preoperative CBCT data of the patient's oral cavity, and reconstructing Model 1; acquiring preoperative tooth and gingival surface optics Scan the data and reconstruct model 2; fit model 1 and model 2 to design the three-dimensional position of the implant in the edentulous area; copy model 2 and generate model 3 according to the direction of the guide plate in place; select the buccal and lingual surfaces of the dentition in model 3 The corresponding undercut filled surface is taken as surface 1; surface 2 is extracted from model 2 according to the boundary of surface 1; the lining model is generated by combining surface 1 and surface 2; the guide plate is generated by combining the lining model and model 2 The main body model of the jacket; final processing and molding. This solution can make full use of the undercuts of the supporting teeth to achieve retention, thereby reducing the range of the guide plate to cover the dentition while ensuring the stability of the guide plate, thereby improving the accuracy and safety of the guide plate-guided implant surgery.

Description

technical field [0001] The invention relates to the technical field of dental implantation, and specifically designs a digital small-size stacked high-retention tooth implantation guide plate and a manufacturing method thereof. Background technique [0002] As a method to restore missing teeth, implant dentures have the advantages of good support and retention effects, beautiful appearance, comfortable use, and no damage to adjacent teeth, and are favored by doctors and patients. At present, they are widely used in clinical practice. In implant restoration technology, the most critical step is to accurately prepare the implant holes for future dental implants on the patient's jaw according to the preoperatively planned surgical plan and restoration plan. Dental implant guide plate technology is one of the effective technologies that can accurately translate the above requirements into clinical practice. The significance of using the guide plate during surgery is that it can ...

AI Technical Summary

Problems solved by technology

Dental implant guides currently used in clinical practice are all one-piece designs, and because the materials used to make dental implant guides are high in strength and rigidity, and cannot be elastically deformed, the implant guides cannot enter the inverted position of the supporting teeth during design. The concave area leads to the lack of retentive force between the implant guide plate and the supporting teeth in actual use. The lack of retentive force will lead to a decrease in the stability of the guide plate, which will affect the accuracy of the guide plate-guided implant surgery. In clinical practice, in order to resist this The risk of decreasing the stability of the guide plate caused by the loss of retention force is often designed to cover a wide range of dentition in order to improve the stability of the guide plate, but this design with too large coverage area will not only make it difficult to observe Whether the guide plate is fully in place will also occupy the operation space in the narrow mouth. At the same time, in order to fix the position of the guide plate, the operator or assistant needs to press the guide plate firmly on the supporting teeth, especially in the area of ​​the posterior teeth. The retention mode will bring inconvenience to the operation, which will affect the accuracy of the operation, and will increase the difficulty and error of the guide plate production

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