两种球帽附着体放置方式对不同冠根比基牙的有限元分析

›› 2018, Vol. 38 ›› Issue (4): 305-309.

两种球帽附着体放置方式对不同冠根比基牙的有限元分析

许海军¹,刘海光¹,邱利华²,潘冬梅¹,梅予锋³

1. 盐城市口腔医院
2. 江苏省盐城市口腔医院
3. 南京医科大学口腔医学院

收稿日期:2017-10-17 修回日期:2017-11-28 出版日期:2018-04-28 发布日期:2018-05-03
通讯作者: 梅予锋 E-mail:yfmei@njmu.edu.cn

Finite element analysis of ball-cap attachment with two placement methods in different abutment periodontal conditions

Received:2017-10-17 Revised:2017-11-28 Online:2018-04-28 Published:2018-05-03

摘要/Abstract

摘要： 目的比较两种球帽附着体的放置方式对不同冠/根比基牙的牙周膜上的等效应力值和最大应力值。方法建立基牙的冠/根比为0.96和1.5的两种三维模型和两种球帽附着体放置方式的三维有限元模型，分析牙周膜上的等效应力和最大应力。结果垂直型球帽附着体在两种冠/根比基牙的牙周膜的等效应力和最大应力均小于水平型球帽附着体。结论垂直型球帽附着体更有利于维持基牙牙周组织的健康。

关键词: 球帽附着体, 有限元分析

Abstract: Objective To compare the values of equivalent(von-misses) stress on periodontal ligament between two placement methods of ball-cap attachment. Methods The two 3-dimensional finite element models of ball-cap were built, attached with two placement methods with two different crown-root ratios(0.96 and 1.5). The equivalent(von-misses) stress and the maximum principal stress on periodontal ligament were analyzed. Results Under two crown-root ratios, the equivalent(von-misses) stress and the maximum principal stress on the periodontal ligament of vertical easy ball-cap attachment was smaller than those of vertical easy ball-cap attachment. Conclusion The vertical easy ball-cap attachment is more conducive to the health of abutment periodontal tissue.

Key words: ball-cap attachment, finite element analysis

中图分类号:

R783.3

许海军刘海光邱利华潘冬梅梅予锋. 两种球帽附着体放置方式对不同冠根比基牙的有限元分析[J]. , 2018, 38(4): 305-309.

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