title: Can the modeling for simplification of a dental implant surface affect the accuracy of 3D finite element analysis?
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.
authors.affiliation: a Department of Dental Materials and Prosthodontics, Aracatuba Dental School , UNESP - Univ Estadual Paulista , Aracatuba , Brazil.
authors.forename: Fellippo Ramos
authors.initials: FR
authors.lastname: Verri
authors.affiliation: a Department of Dental Materials and Prosthodontics, Aracatuba Dental School , UNESP - Univ Estadual Paulista , Aracatuba , Brazil.
authors.forename: Ronaldo Silva
authors.initials: RS
authors.lastname: Cruz
authors.affiliation: a Department of Dental Materials and Prosthodontics, Aracatuba Dental School , UNESP - Univ Estadual Paulista , Aracatuba , Brazil.
authors.forename: Victor Eduardo
authors.initials: VE
authors.lastname: de Souza Batista
authors.affiliation: a Department of Dental Materials and Prosthodontics, Aracatuba Dental School , UNESP - Univ Estadual Paulista , Aracatuba , Brazil.
authors.forename: Daniel Augusto de Faria
authors.initials: DA
authors.lastname: Almeida
authors.affiliation: b Department of Pediatric and Community Dentistry, Aracatuba Dental School , UNESP - Univ Estadual Paulista , Aracatuba , Brazil.
authors.forename: Ana Caroline Gonçales
authors.initials: AC
authors.lastname: Verri
authors.affiliation: a Department of Dental Materials and Prosthodontics, Aracatuba Dental School , UNESP - Univ Estadual Paulista , Aracatuba , Brazil.
authors.forename: Cleidiel Aparecido de Araújo
authors.initials: CA
authors.lastname: Lemos
authors.affiliation: c Department of Health Sciences , Sacred Heart University , Bauru , Brazil.
authors.forename: Joel Ferreira
authors.initials: JF
authors.lastname: Santiago Júnior
authors.affiliation: a Department of Dental Materials and Prosthodontics, Aracatuba Dental School , UNESP - Univ Estadual Paulista , Aracatuba , Brazil.
authors.forename: Eduardo Piza
authors.initials: EP
authors.lastname: Pellizzer
mesh_terms: D015921:Dental Implants; D017267:Dental Prosthesis Design; D020342:Finite Element Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional; D003765:Models, Dental; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: D015921:Dental Implants
keywords: Dental implants; biomechanics; finite element analysis