Method for making multi-functional edentulous and lipless impression tray

Abstract

The invention relates to a method for manufacturing a multifunctional edentulous jaw and labial flange-free impression tray. The method comprises the following steps: carrying out 3D-scanning on fulldenture prosthesis tissue surfaces of large, medium and small standard edentulous jaw alveolar ridges to obtain 3D data of upper and lower jaw denture tissue surfaces for standby; shortening an edge of scanning data of each set of denture tissue surfaces by 1-2 mm; negatively biasing denture scanning data tissue surfaces 2 mm; designing a 2 mm high spherical structure on the biased tissue surfaces; designing a retaining groove with a detachable handle in an upper jaw palatal rugae region and the handle matched with the retaining groove; and opening a mold based on the designed 3D data of an upper and lower jaw tray, pressing and manufacturing a main body of the upper and lower jaw tray. The method provided by the invention replaces a traditional tray and jaw support with the digitally designed and manufactured multifunctional tray, can simultaneously complete the preparation of an edentulous jaw initial impression and the recording of an initial jaw position relationship, can greatly simplify operation steps of oral clinical operation, reduces operation difficulty, and improves diagnosis and treatment efficiency and quality.

Description

technical field [0001] The invention relates to the production of a tooth restoration impression tray, in particular to a production method of a multifunctional edentulous jaw and lipless impression tray. Background technique [0002] At present, the traditional finished product tray is commonly used in clinical practice at home and abroad to make the initial impression of the edentulous jaw, and to make the jaw relationship record with the jaw support. The main advantages and disadvantages are as follows: [0003] 1. Making the initial impression from the finished tray: it is more convenient, and clinicians can complete it by manual operation. However, the operation is more complicated, and the jaw position relationship cannot be recorded synchronously. [0004] 2. Manufacture of the jaw rest: Based on the finished tray, the initial impression must be combined with the final impression to be used in the production of a plaster model, and the plaster model is the key produc...

AI Technical Summary

Problems solved by technology

However, the operation is more complicated, the accuracy is poor and the recording deviation is very easy to occur

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