Mechanical responses of maxillary canine and surrounding tissues under orthodontic loading: a non-linear three-dimensional finite element analysis

Autor: Mohammad Roostaie, Madjid Soltani
Rok vydání: 2017
Předmět:
Zdroj: Journal of the Brazilian Society of Mechanical Sciences and Engineering. 39:2353-2369
ISSN: 1806-3691
1678-5878
DOI: 10.1007/s40430-016-0705-5
Popis: This research investigates the biomechanical responses of the tooth structure resulted from the orthodontic operation. In this study, the stress distribution in the alveolar bone and periodontal ligament (PDL) was assumed to cause bone resorption. A 3-D finite element (FE) model of the tooth, PDL and alveolar bone of the maxillary canine was built based on the computed tomography (CT) images. The mechanical properties of the PDL were assumed to be non-linear viscoelastic. The model was analyzed by applying tipping force which caused stress distribution with different patterns in the alveolar bone and PDL. The stress concentration was mostly on the lingual and labial-cervical sections of both the PDL and alveolar bone. According to the rotational movement, the compressive stress was observed in the lingual-cervical sides of the apex and the labial-middle. The tensile stress was detected in the labial-cervical sides of the lingual-middle of the PDL. The levels and peaks of the stress distribution declined as the area of force application on the tooth got closer to the apex. To obtain more information about the tooth movement during orthodontic operation, further study with experimental results about the effects of various parameters is required.
Databáze: OpenAIRE
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