Caries formation around restorative composite and glass ionomer cement

• Autor(a) principal: Okida, Ricardo Coelho [UNESP]
• Data de Publicação: 2014
• Outros Autores: Rahal, Vanessa [UNESP], Goiato, Marcelo Coelho [UNESP], Okida, Daniela Secches da Silveira [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://apcdaracatuba.com.br/revista/2015/03/v35n222014.htm; http://hdl.handle.net/11449/133482
• topic: Fluorides; Demineralization; Microscope; Fluoretos; Desmineralização; Microscópio

This in vitro study evaluated the demineralization around restorations class V made on the buccal and lingual surfaces of teeth when using different restorative materials. Thirty extracted teeth were randomly divided into 3 groups (n=10) according to the restorative material: Group I - Fuji II LC (GC America Inc., Alsip, Illinois, USA), Group II - Tetric (Ivoclar Vivadent AG, Schaan, Liechtenstein) and Group III - Chelon Fil (3M/ESPE., Seefeld, Germany). The teeth were submitted to a pH-cycling model associated to a thermocycling model. Sections were made and the specimens were analyzed under a polarized light microscopy as for the presence of demineralization. Measurements were performed and the results were subjected to statistical analysis using Anova and Tukey´s Test (α=0.05). Mean values of demineralization depth (µm) according to each positions showed that the demineralization was significantly reduced when Chelon Fil (Group III) was used for all depths, when compared to fluoridated resin materials. Also, it was verified that non-fluoridated resin material, composite resin Tetric, had the lowest inhibitory effect on the development of demineralization.