Manufacturing method of whole-wrapped type extra-thin porcelain veneer

Abstract

The invention provides a manufacturing method of a whole-wrapped type extra-thin porcelain veneer. The method comprises specific steps of (1) preparing a tooth model from a tooth body prepared in a minimally invasive manner; (2) preparing a wax pattern of the whole-wrapped type extra-thin porcelain veneer according to the tooth model; (3) according to the wax pattern in the step (2), mounting a sprue on the wax pattern, and performing embedment casting treatment on porcelain blocks so as to obtain a prosthesis, wherein the material of the porcelain blocks in the step (3) is IPS e.max Press porcelain blocks; (4) removing the embedment from the prosthesis, and removing a reaction layer; and (5) polishing the prosthesis, and finally performing glazing and sintering so as to obtain preparation of the porcelain veneer. The thinnest porcelain veneer prepared by the method can reach 0.2mm, the porcelain veneer is high in pressure resistance, is jointed to teeth, is not liable to molder, has good esthetic properties, and can wholly wrap a tooth large in tooth defects, and the problem that conventional tooth crown repair cannot reach minimally invasive esthetics due to large tooth defect quantity can be solved.

Description

technical field [0001] The invention relates to the field of dental medical instruments, in particular to a method for making an all-enveloping ultra-thin porcelain veneer. Background technique [0002] In today's society, with the improvement of living standards, people's desire for beauty is not limited to the face and figure, but also pays more attention to the whitening and health of teeth. Having neat, white and beautiful teeth is one of the top ten health symbols of modern people. one. It is precisely because of this that tooth beauty is also emerging in the oral industry. For a long time, tooth defect problems such as tooth surface defects, stained teeth, discolored teeth and deformed teeth have been a major problem that has plagued people from all walks of life. Porcelain veneer is a restoration method that fixes a thin-layer artificial porcelain restoration on the labial surface of the affected tooth with bonding materials to restore the normal shape of the tooth ...

AI Technical Summary

Problems solved by technology

However, while the porcelain veneer is ultra-thin, it is inevitable that the porcelain veneer is easy to crack. The raw materials and post-processing technology of the porcelain veneer will affect the bending strength of the porcelain veneer.

However, the thickness of conventional ultra-thin porcelain veneers is usually 0.3mm-0.5mm, which are divided into fenestration type, butt joint type and wrapping type (wrapping within 1 / 3 of the lingual side of the tooth), and are usually only used for tooth defects. For the aesthetic restoration of small or non-defective pulp teeth, for the aesthetic restoration of anterior teeth with large tooth defects or root canal treatment, it is usually recommended to use all-ceramic crowns or post-core crowns. The amount of cutting is large, and the effect of minimally invasive aesthetics cannot be achieved