Method for manufacturing underjaw half mouth false tooth via silicone rubber pressure impression

Abstract

The invention discloses a method for manufacturing an underjaw half mouth false tooth via a silicone rubber pressure impression. The method comprises the following steps of firstly manufacturing an individual tray which goes across an edge line, then embedding a hand adjustable type silicone rubber heavy body, lightly pressing the heavy body to a proper position in a mouth, taking out the heavy body after solidification to obtain a first-time impression, injecting a gun mixing type silicone rubber heavy body or an intermediate body respectively into the first-time impression and the mouth, then embedding the first-time impression into the mouth, performing heavy pressure at the proper position, solidifying, then taking out the impression to obtain an underjaw false tooth. According to themethod, the hand adjustable type silicone rubber heavy body combined with the gun mixing type silicone rubber heavy body or the intermediate body, which has slight poor fluidity, is utilized, a mucousmembrane is pushed open, excessive extension is performed, stressful functional impression is performed to prepare a horizontal impression for bone tissue so as to obtain underjaw surface outlines ofan inner oblique line, an outer oblique line and the like, so that the problems that the false tooth prepared from a traditional alginate impression is easy to press painfully and even alveolar ridgetop migration pain appears are solved, and the method can be used for preparing the false teeth of patients suffering from severe and extremely severe bone resorption.

Description

technical field [0001] The invention belongs to the technical field of oral restoration, and in particular relates to a method for making a mandibular partial denture by a silicone rubber pressure impression. Background technique [0002] According to the degree of resorption of remaining alveolar bone, edentulousness can be divided into four types: mild, moderate, heavy, and very heavy. The currently popular adsorptive dentures are prepared by the alginate impression method, which produces a pressure-free impression at the soft tissue level, and mild and moderate patients with more keratinized gingiva can obtain good retention and However, for severe and extremely severe patients with less keratinized gingiva or even no keratinized gingiva, there are disadvantages such as poor retention, and the traditional non-functional pressure-free impression cannot show the softness and hardness of the patient's mouth When the tissue is subjected to functional movement, the supporting...

AI Technical Summary

Problems solved by technology

The currently popular adsorptive dentures are prepared by the alginate impression method, which produces a pressure-free impression at the soft tissue level, and mild and moderate patients with more keratinized gingiva can obtain good retention and However, for severe and extremely severe patients with less keratinized gingiva or even no keratinized gingiva, there are disadvantages such as poor retention, and the traditional non-functional pressure-free impression cannot show the softness and hardness of the patient's mouth When the tissue is subjected to functional movement, the supporting tissue of the denture base and mucosal soft tissue will be damaged under the condition of functional movement, resulting in migratory pain on the alveolar crest

As a result, patients need repeated visits to grind away these tender points, which becomes a nightmare for both patients and doctors

At the same time, adsorption dentures require edge shaping to improve the retention of the complete denture, but even skilled doctors need at least 1 hour to complete the edge shaping of the full mouth, which is time-consuming and labor-intensive