Aditamentos biselados en movimientos de extrusión en incisivos superiores: un análisis de elementos finitos

Introduction: Dental aligners are an orthodontic option, within the movements they achieve, extrusion is one of the least predictable. The objective of the study was to analyze variations in tension and deformation in the maxilla, periodontal ligament (LPD), bone and upper incisors during extrusion...

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Bibliographic Details
Main Authors:	Arrieta Montiel, Karina Cristina, Obredor Forero, Jessica Katerine, Cárdenas Franco, Andrea Del Pilar, Peña Calderón, Luis Hernando
Other Authors:	Moreno Mazutier, Jairo Enrique
Format:	Trabajo de grado (Pregrado y/o Especialización)
Language:	spa
Published:	Universidad Antonio Nariño 2022
Subjects:	Extrusión Incisivo central superior Aditamento Elementos finitos Alineador invisible 617.6 Extrusion Upper central incisor Abutment Finite elements Invisible aligner
Online Access:	http://repositorio.uan.edu.co/handle/123456789/6565
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Summary:	Introduction: Dental aligners are an orthodontic option, within the movements they achieve, extrusion is one of the least predictable. The objective of the study was to analyze variations in tension and deformation in the maxilla, periodontal ligament (LPD), bone and upper incisors during extrusion with aligners using 3, 4 and 5mm beveled abutments in a finite element model (FEM). Materials and methods: FEM of a tomography of the upper jaw (teeth 11, 12, 21 and 22) was performed, analyzing stress and strain distributions. Results: Maximum main forces: generalized LPD apical zone, in tooth 22 (0.1 MPa) and in the contact area of the abutment. Maximum deformation: lateral and internal LPD walls, contact area and lower edge of the attachment. Conclusion: There were maximum and less precise stresses and deformations in lateral incisors. There were no relevant differences between stresses and deformations of the 3 abutment designs.