Computerized Generation and Finite Element Stress Analysis of Endodontic Rotary Files

Roda-Casanova, V ; Zubizarreta-Macho, A ; Sanchez-Marin, F ; Alonso Ezpeleta, O (Universidad de Zaragoza) ; Albaladejo Martinez, A ; Galparsoro Catalan, A

Resumen: Introduction: The finite element method has been extensively used to analyze the mechanical behavior of endodontic rotary files under bending and torsional conditions. This methodology requires elevated computer-aided design skills to reproduce the geometry of the endodontic file, and also mathematical knowledge to perform the finite element analysis. In this study, an automated procedure is proposed for the computerized generation and finite element analysis of endodontic rotary files under bending and torsional conditions. Methods: An endodontic rotary file with a 25mm total length, 0.25mm at the tip, 1.20mm at 16mm from the tip, 2mm pitch and squared cross section was generated using the proposed procedure and submitted for analysis under bending and torsional conditions by clamping the last 3mm of the endodontic rotary file and applying a transverse load of 0.1N and a torsional moment of 0.3N.cm. Results: The results of the finite element analyses showed a maximum von Mises stress of 398MPa resulting from the bending analysis and a maximum von Mises stress of 843MPa resulting from the torsional analysis, both of which are next to the encastre point. Conclusions: The automated procedure allows an accurate description of the geometry of the endodontic file to be obtained based on its design parameters as well as a finite element model of the endodontic file from the previously generated geometry.

Idioma: Inglés

DOI: 10.3390/app11104329

Año: 2021

Publicado en: Applied Sciences (Switzerland) 11, 10 (2021), 4329 [17 pp]
ISSN: 2076-3417

Factor impacto JCR: 2.838 (2021)

Categ. JCR: ENGINEERING, MULTIDISCIPLINARY rank: 39 / 92 = 0.424 (2021) - Q2 - T2
Categ. JCR: PHYSICS, APPLIED rank: 76 / 161 = 0.472 (2021) - Q2 - T2
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 218 / 345 = 0.632 (2021) - Q3 - T2
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 100 / 180 = 0.556 (2021) - Q3 - T2

Factor impacto CITESCORE: 3.7 - Engineering (Q2) - Materials Science (Q2) - Chemical Engineering (Q2) - Computer Science (Q2) - Physics and Astronomy (Q2)

Factor impacto SCIMAGO: 0.507 - Engineering (miscellaneous) (Q2) - Computer Science Applications (Q2) - Process Chemistry and Technology (Q2) - Materials Science (miscellaneous) (Q2) - Fluid Flow and Transfer Processes (Q2)

Tipo y forma: Article (Published version)

Área (Departamento): Área Estomatología (Dpto. Cirugía)