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Titanium alloy elastic preformation root canal pile with low elasticity modulus

A low elastic modulus, titanium alloy technology, applied in the medical field, can solve the problems of unclear long-term efficacy of fiber posts, unstable epoxy resin, decreased mechanical strength, etc., achieve good biomechanical compatibility, increase retention Strength and stability, the effect of broad application prospects

Inactive Publication Date: 2011-09-28
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the fiber post is a composite resin material, and the epoxy resin will degrade and become unstable after absorbing water, eventually causing a decrease in mechanical strength 【24】 , and the long-term efficacy of fiber post for pulpless tooth restoration is not yet clear 【25】

Method used

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  • Titanium alloy elastic preformation root canal pile with low elasticity modulus
  • Titanium alloy elastic preformation root canal pile with low elasticity modulus
  • Titanium alloy elastic preformation root canal pile with low elasticity modulus

Examples

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Embodiment Construction

[0050] see Figure 1 ~ Figure 4 , the titanium alloy prefabricated root canal post with low elastic modulus of this embodiment includes a post head A and a post body B, wherein the bottom of the post body B has a tapered end G, and the top of the post body B is concentrically provided with a first flange C and the second flange D, the second flange D is connected to the pile head A, the diameter of the second flange D is greater than the diameter of the first flange C, and the diameter of the first flange C is greater than the diameter of the pile body B;

[0051] There is an acute-angle thread F on the outer diameter of the pile body B, and the acute-angle thread F starts at the junction of the first flange C and the pile body B, and ends at the junction of the pile body B and the tapered end G; on the pile body B A split groove E is opened at the bottom, and an overflow channel H is provided radially on one side of the first flange C and the second flange D, and the overflow...

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Abstract

The invention discloses a titanium alloy preformation root canal pile with low elasticity modulus, which comprises a pile head and a pile body, wherein the bottom of the pile body is provided with a cone-shaped end, and the upper part of the pile body is concentrically provided with two flanges; a sharp thread is arranged on the external diameter of the pile body, initiated at the junction of a first flange and the pile body and terminated at the junction of the pile body and the cone-shaped end; and the bottom of the pile body is provided with a split cavity, the radial directions of one side of the first flange and one side of a second flange are provided with spilling passages, and the spilling passages penetrate through the external diameter of one side of the pile body and are communicated with the split cavity. The invention solves the problem of easy root breaking of a metal pile, enhances the long-dated success rate of the restoration of a nuclear cap of the pile clinically, provides a theoretical and experimental basis for the better clinical application of a preformation metal pile and has extensive application prospect.

Description

technical field [0001] The invention belongs to the field of medicine, in particular to a titanium alloy elastic prefabricated root canal post with a low elastic modulus. Background technique [0002] In recent years, due to the maturity of root canal treatment technology, more and more pulpal and periapical diseased teeth have been preserved. In order to restore the physiological shape and function of teeth, post-core crown restorations have been widely used. However, due to the reduction of moisture in pulpless dentin, the elasticity and strength are reduced, which can easily cause tooth fracture and often lead to restoration failure. 【1】 . Therefore, the choice of post material and shape is helpful to improve the effect of clinical post-core repair. [0003] Many literatures have reported that post-core material and design form affect the fracture resistance of post-core restoration system after endodontic treatment 【2-4】 . Until now, there is no unified conclusion in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C5/08A61K6/04
Inventor 高勃汪娜孔亮陈永光郝玉琳
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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