Guiding device for tooth coronal cavity preparation and making method thereof

Abstract

The invention relates to a guiding device for tooth coronal cavity preparation and a making method thereof. The guiding device comprises a base plate (1) and a guiding structure (2) connected to the base plate, the center of the base plate (1) is provided with a coronal cavity-shaped face boundary positioning hole (5), the shape of the positioning hole (5) is the projection of the shape of a dental pulp chamber (6) and the shape of a root canal orifice (7) to a tooth crown along a guiding direction, the guiding direction (8) of the guiding structure (2) is the optimum direction of entrance into a medullary canal and the guiding direction is determined by an operator or is automatically calculated by a software algorithm. The making method of the guiding device comprises acquiring tooth three-dimensional shape data, then carrying out computer-aided design, and finally making the guiding device through a numerical control cutting or three-dimensional printing device. Through the making method, the personalized guiding device for entrance into a medullary canal is prepared and is used for accurate tooth coronal cavity preparation so that the occurrence of the mistake is reduced.

Description

technical field [0001] The invention relates to a guiding device for preparation of dental pulp opening, which belongs to the technical field of oral cavity treatment, and comprises a base plate and a guide structure, the tissue surface of the base plate and the crown to be pulped. Surface fit, there is a hole in the center of the base plate The surface boundary positions the hole, and the guide structure is used to guide the entry direction of the opening drill. [0002] The present invention also relates to a method for manufacturing the above-mentioned guiding device, which includes obtaining three-dimensional shape data of the tooth surface, pulp chamber and root canal through three-dimensional imaging examination, completing the computer-aided design of the guiding device in three-dimensional reverse engineering software, and completing the computer-aided design of the guiding device by numerical control cutting or The three-dimensional printing equipment completes the...

AI Technical Summary

Problems solved by technology

However, due to the narrow operating space in the oral cavity, making such a high-precision micro-robot requires extremely high technical requirements. At the same time, the robot system must be very stable and reliable to avoid medical injuries. The development cycle is long and expensive, and it is difficult to quickly promote it in the clinic.

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