Can the modeling for simplification of a dental implant surface affect the accuracy of 3D finite element analysis?
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2016-11-17
Autores
Verri, Fellippo Ramos [UNESP]
Cruz, Ronaldo Silva [UNESP]
de Souza Batista, Victor Eduardo [UNESP]
Almeida, Daniel Augusto de Faria [UNESP]
Verri, Ana Caroline Gonçales [UNESP]
Lemos, Cleidiel Aparecido de Araújo [UNESP]
Santiago Júnior, Joel Ferreira
Pellizzer, Eduardo Piza [UNESP]
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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 (à 3.75 à 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.
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biomechanics, Dental implants, finite element analysis
Como citar
Computer Methods in Biomechanics and Biomedical Engineering, v. 19, n. 15, p. 1665-1672, 2016.