Dentistry bionic radian curve fiber post

Abstract

The invention relates to a dentistry bionic radian curve fiber post, which solves the problem that vast majority of the existing dentistry fiber posts are straight nails, and have influences on uniform distribution of stress and arrangement and appearance of a crown portion. The fiber post comprises a root inner section and a root outer section, the root inner section is in a shape of a cylindrical table, the root outer section is divided into an upper root outer section and a lower root outer section, the top end of the upper root outer section is connected with the root inner section, and the bottom end of the upper root outer section is connected with the lower root outer section. The cross section of the upper root outer section is in a shape of a kidney, a generatrix of the upper root outer section is composed of two sections of tangential arcs, an upper arc section is tangential with the generatrix of the root inner section, a lower arc section is tangential with the generatrix of the root outer section, and the cross section of the lower root outer section is in a shape of a kidney. The dentistry bionic radian curve fiber post meets requirements of biomechanics, is providedwith root pipe post forms bionically designed according to biological parameters, and solves the problem that application of end product fiber posts is limited when used for repairing front teeth dueto the fact that the end product fiber posts can not be bent.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a dental bionic curved fiber post. Background technique [0002] Root preservation restorative treatment is an important part of dental restoration and is the only reliable method known to prevent alveolar bone loss. The post-core system is one of the effective means of root preservation and restoration. At present, the post-core system has been widely used in clinical practice, and can be roughly divided into two categories, metal and non-metal, according to different materials. Traditional metal posts have disadvantages such as poor aesthetics, high elastic modulus, increased root fracture probability, and metal corrosion products that easily cause periodontal disease and affect MRI imaging. Non-metallic fiber posts can effectively Distribute stress, prevent root fracture caused by stress concentration; good aesthetics; corrosion resistance; fatigue resistance; Leakage...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a curved finished fiber post that is more in line with the anatomical shape of the tooth and has a certain bionic radian to correct the misalignment of the tooth. It not only has the general characteristics of the fiber reinforced resin post, but also conforms to the shape of the tooth. According to biomechanical requirements, it is closer to the anatomical shape of the root canal. At the same time, the unique design of the outer section of the root solves the problem of excessive labial protrusion of the outer section of the root when using conventional straight piles, which affects the uniform distribution of stress; shortening the length of the outer section of the root Nuclear strength; direct angle bending of fiber pegs leads to strength loss and other issues

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