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

• Basic Research • Previous Articles     Next Articles

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

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

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