Estimation of Biomechanical Behavior in Non-carious Cervical Lesions Restored by Different Materials:A 3D Finite Element Analysis

doi:10.13701/j.cnki.kqyxyj.2021.09.011

Abstract

Abstract: Objective: To study the biomechanical properties of different materials to repair non carious cervical defects of right mandibular second premolar with different loadings. Methods: The neck defect model at right mandibular second premolar was used. The non treatment was set as Control group, and IPS e.max (D), Celtra Duo (B), Filtek Z350 resin block (C), Lava Ultimate (D), and Filtek Supreme XT (E) filling were set as experimental group. An instantaneous dynamic loading was performed to investigate the stress distribution within a specific period (T=0.875 s). Results: During the same period,the stress values within remaining teeth and materials were the same, i.e. Control>A>B>C>D>E. For each group, the stress values within different periods were Ⅳ>Ⅲ>Ⅱ. Conclusion: The materials with similar elastic modulus to that of teeth showed better stress distribution,and the impact load affects the stress distribution.

Key words: the right mandibular second premolar, direct and indirect restoration, dynamic loading, finite element analysis

YIN Jingping, WANG Jing, SUN Yali, LIN Huajie. Estimation of Biomechanical Behavior in Non-carious Cervical Lesions Restored by Different Materials:A 3D Finite Element Analysis[J]. Journal of Oral Science Research, 2021, 37(9): 820-824.

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