Full-process digital manufacturing method of complete dentures

Abstract

The invention provides a full-process digital manufacturing method of complete dentures. The full-process digital manufacturing method comprises the following steps: acquiring an STL file of three-dimensional data by intraoral scanning of a patient with complete edentulous jaw; putting the median occlusal tray into the mouth, recording the morphology of the mucous membrane surface of the upper jawand the lower jaw and the relative position relation of the upper jaw to the lower jaw, obtaining an STL file of three-dimensional data of the median occlusal tray by scanning; and obtaining a DICOMfile about spiral CT or CBCT of the edentulous jaw patient wearing the median occlusal tray. The full-process digital manufacturing method of the present invention has the advantages as follows: 1, athree-dimensional space about maxillofacial region of the patient is constructed by fitting four digital files, and the occlusal plane in which the patient tries on the dentures and morphology and position of the anterior teeth are set with reference of the anatomical structure of the maxillofacial region of the patient, thereby improving the try-on effect of the dentures; 2, a final impression scanning and copying technology is utilized to accurately manufacture the morphology of a final denture base; and 3, a base plate and a artificial dentition are obtained by adhering the separately cut resin discs with different colors and high strength through adhesive, thereby achieving high cutting precision, high strength of the resin discs and good wear resistance of the artificial teeth.

Description

technical field [0001] The invention specifically relates to a full-process digital manufacturing method of a complete denture. Background technique [0002] According to the existing clinical experience, a pair of biofunctional complete dentures with good adsorption properties can be produced. In the traditional technology, the production steps include: [0003] S01: Select a suitable finished product tray to make the initial impression of the upper and lower jaws, and pour the initial model; [0004] S02: Use the centric occlusal tray to record the occlusal relationship between the upper and lower jaws, and transfer the relationship to the simple jaw frame; [0005] S03: Make a personalized tray and wax embankment on the initial model; [0006] S04: Install a gothic arch tracing device on a personalized tray; [0007] S05: Use the personalized tray to make the final impression in the mouth, and use the Gothic bow to record the horizontal jaw position relationship, and u...

AI Technical Summary

Problems solved by technology

The Chinese patent with authorized notification number CN111743648A discloses a centric occlusal tray, a method of use and a method for making digital complete dentures. The centric occlusal tray can obtain the relationship between the upper and lower jaws and the dental The occlusal plane, the post-production dentures are used to verify the correctness of the occlusal relationship. If it is incorrect, a series of corrections are required, and the process is more complicated

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