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

Autor(es)

Verri, Fellippo Ramos ; Cruz, Ronaldo Silva ; de Souza Batista, Victor Eduardo ; de Faria Almeida, Daniel Augusto ; Goncales Verri, Ana Caroline ; de Araujo Lemos, Cleidiel Aparecido ; Santiago Junior, Joel Ferreira ; Pellizzer, Eduardo Piza

• Tipo de documento: Artigo Científico
• Fonte: COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING; v. 19, n. 15, p. 1665-1672, 2016.
• Citações Web of Science: 9

Resumo

The aim of this study was to assess stress/strain of different implant modeling simplifications by 3D-FEA. Three variation of external hexagon implant (O3.75x10mm) supporting one molar crown were simulated: A (no threads); B (slightly threads simplification); C (original design). 200N (axial) and 100N (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. (AU)

• Processo FAPESP: 11/01045-2 - Avaliação das próteses unitárias sobre implantes de hexágono externo, interno e cone morse com diferentes tipos de ancoragem em pré-maxila: estudo pelo método dos elementos finitos 3-D
• Beneficiário: Fellippo Ramos Verri
• Modalidade de apoio: Auxílio à Pesquisa - Regular