带台阶和双向骨螺纹的牙体修复固位钉、桩系统

›› 2013, Vol. 33 ›› Issue (3): 162-164.

带台阶和双向骨螺纹的牙体修复固位钉、桩系统

王国庆¹,叶艮应¹,曹征旺²

1. 杭州西湖生物材料有限公司
2. 西湖生物科技有限公司

收稿日期:2012-04-05 修回日期:2012-08-10 出版日期:2013-03-28 发布日期:2013-03-14
通讯作者: 叶艮应 E-mail:yegenying@126.com

Dental prosthesis retention pin and post system with steps and bidirectional screw thread

Received:2012-04-05 Revised:2012-08-10 Online:2013-03-28 Published:2013-03-14

摘要/Abstract

摘要： 目的设计一种生物力学功能更好的牙体修复固位钉、桩系统。方法分析固位钉、桩系统在口腔中实际受到的生物力状态，设计新的钉、桩结构，并在离体牙上进行实验验证。结果所设计的带台阶的双向骨螺纹Φ0.75的固位钉能提高固位力30～140 N，台阶能再提高抗咀嚼力20～50 N。结论该钉、桩系统能增加抗咀嚼力值，降低金属弹性模量高对牙体牙本质的损伤，使修复固位疗效改善、寿命延长。

关键词: 带台阶, 双向骨螺纹, 牙体修复, 固位钉、桩, take steps, bidirectional bone screw, dental restoration, fixing screws

Abstract: Objective To design a dental prosthesis retention pin and post system with better biomechanical function. Methods According to the actual biological stress of retention pin and post system in oral cavity,design a new pin and post structure,and carry on experiment on teeth in vitro. Results The designed twoway bone threaded retention pins with Φ 0.75 could improve the retention force by 30~140 N,and the steps could further improve resistance to chewing force by 20~50 N. Conclusions The pin and post system can increase the value of resistance to chewing force,reduce the harm to tooth dentin caused by metal with high modulus of elasticity,improve the repair and retention effect,and extend the life of retention.

中图分类号:

R783.3

王国庆叶艮应曹征旺. 带台阶和双向骨螺纹的牙体修复固位钉、桩系统[J]. 口腔医学, 2013, 33(3): 162-164.

[1]	张佳慧冯丹宫海环金杰朱松. 聚氨酯在牙体修复材料中的应用[J]. , 2016, 36(3): 266-268.
[2]	嵇潇雷张瑞刘玉孙卫斌. 牙体楔状缺损修复中贴面式瓷嵌体的应用[J]. , 2016, 36(2): 129-131.
[3]	庄润涛;陆瑾. 有限元分析在牙体充填修复中的应用[J]. , 2006, 26(3): 235-236.
[4]	徐双；张福霞. 全银汞钉核在后牙残冠牙体修复中的应用[J]. , 1997, 17(2): 82-83.