Can the modeling for simplification of a dental implant surface affect the accuracy of 3D finite element analysis?

Fellippo Ramos Verri, Ronaldo Silva Cruz, Victor Eduardo de Souza Batista, Daniel Augusto de Faria Almeida, Ana Caroline Gonçales Verri, Cleidiel Aparecido de Araújo Lemos, Joel Ferreira Santiago Júnior and Eduardo Piza Pellizzer

Computer Methods in Biomechanics and Biomedical Engineering, 2016, vol. 19, issue 15, 1665-1672

Abstract: The aim of this study was to assess stress/strain of different implant modeling simplifications by 3D-FEA. Three variation of external hexagon implant (Ø3.75 × 10 mm) supporting one molar crown were simulated: A (no threads); B (slightly threads simplification); C (original design). 200 N (axial) and 100 N (oblique) were applied. Cortical bone was evaluated by maximum principal stress and microstrain qualitatively and quantitatively (ANOVA and Tukey post hoc (p < 0.05)). Higher stress levels (p < 0.05) were observed in model A. Models B and C presented similar stress transmission. It was possible to conclude that slightly simplification should be used for studies evaluating stress transferring for bone tissue.

Date: 2016
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DOI: 10.1080/10255842.2016.1176156

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