Molar fission molding pile-core and production method thereof

Abstract

The invention discloses a separate casting post core of a molar and a fabrication method thereof. The separate casting post core of the molar consists of a female post core and a male post core which are respectively provided with a root canal post at the lower parts thereof. The female post core and the male post core are respectively divided into a right separate body and a left separate body at the core body of the post core, and the joint face of the right separate body and the left separate body is inclined towards the female post core. The inclined angle of the joint face is equal to or larger than the inclined angle of the root canal post of the male post core. The female post core is provided with a groove with a larger upper part and a smaller lower part on the joint face, the male post core is provided with a protuberance with a larger upper part and a smaller lower part on the joint face, and the shape of the groove and the shape of the protuberance are matched. The separate casting post core has the advantages of simple and convenient processing, easy fabrication, easy installation and strong practicability. By using the female post core and the male post core respectively with a key way and a key, the standardization of the binding site between the female post core and the male post core can also be realized, and the fabrication process of the post core can be further simplified.

Description

[technical field] [0001] The invention relates to denture manufacturing technology, in particular to a molar split casting post core and a manufacturing method thereof. [Background technique] [0002] For teeth with residual roots and crowns caused by large-area tooth defects, after conventional root canal treatment, post-core crown restoration has become an important part of clinical fixed restoration. There are two methods of post core casting: integral casting and split casting. The integral casting is used for single teeth or double teeth that can obtain a common seating path after root canal preparation. Split casting is used for unable to obtain a common seating path. Double-rooted teeth and multi-rooted molars. When restoring molar residual crowns, it is often necessary to obtain stable retention and support through root canal posts to achieve the purpose of restoring the crown. Because the molars are multi-rooted teeth, the bifurcation degree between the roots is r...

AI Technical Summary

Problems solved by technology

Although this type of method avoids the problem of the way in place, there are corresponding various defects: expensive (such as fiberglass piles, its cost price is equivalent to ten to a hundred times that of ordinary casting piles and finished metal piles); Complicated (such as the post-core formation process of silver amalgam); there are multiple joint interfaces in the restoration (such as: core post-root canal interface, core post-post-core interface, post-core-natural tooth crown interface, post-core-root surface interface, post-core-total crown interface, etc.)

Difficult to make, basically empirical, lack of standardization, so it is difficult to popularize and promote

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