Influência do procedimento restaurador e de contato anterior em incisivos superiores com diferentes morfologias de desgaste cervical
| Autor: | Vitor Laguardia Guido Faria, Marina Ferreira de Lima Naves, Alexandre Coelho Machado, Paulo Vinícius Soares, Igor Oliveiros Cardoso, Livia Fávaro Zeola |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Finite Element Analyses
maxillary incisors QH301-705.5 Maxillary Incisors noncarious cervical lesions Agriculture composite resin restoration Anterior Load finite element analyses Noncarious Cervical Lesions stomatognathic diseases Composite Resin Restoration Health Sciences Biology (General) General Agricultural and Biological Sciences anterior load |
| Zdroj: | Bioscience Journal, Vol 34, Iss 5 (2018) Bioscience Journal ; Vol. 34 No. 5 (2018): Sept./Oct.; 1443-1454 Bioscience Journal ; v. 34 n. 5 (2018): Sept./Oct.; 1443-1454 Bioscience journal Universidade Federal de Uberlândia (UFU) instacron:UFU |
| ISSN: | 1981-3163 |
| Popis: | The aim of this study was to evaluate the influence of different anterior load type and restorative procedure on stress distribution of maxillary incisors with different noncarious cervical lesions (NCCLs) morphologies. Three-dimensional models of a maxillary incisor were generated. Beyond the sound model (SO), five NCCLs morphologies were simulated: shallow (SH), notched (NO), concave (CO), wedge-shaped (WS) and irregular with dual center (IR' and IR"). Composite resin restoration of all the models was simulated (R). Two different anterior loads were applied: 100N on palatine middle third (ML) and 500 N on palatine incisal third (IL). The data were obtained in MPa using the Maximum Principal Stress and Von Mises criteria and the statistical analysis was performed (paired t-test with 95% confidence level). The IL provided higher compressive stress than ML, mainly on WS (-136.3MPa), IR" (-117.5) and NO (-71.1 MPa). The highest tensile stress found within the restored models was on NOR with IL (19,1 MPa). The Von Mises results showed higher stress concentration on non-restored and IL models (p |
| Databáze: | OpenAIRE |
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