A influência do polimento adicional em superfícies de compósitos: uma análise de rugosidade superficial, microscopia e molhabilidade.

• Autor(a) principal: Carvalho, Lenise Anand de Oliveira
• Data de Publicação: 2015
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFRN
• Texto Completo: https://repositorio.ufrn.br/handle/123456789/39278
• topic: Polimento dentário; Resinas compostas; MEV; AFM; Molhabilidade; Rugosidade

This study evaluated the influence of finishing and polishing methods and additional polishing on the morphology of two different brands of composites resins. The light-curing composites were used: Filtek Z350 XT (3M) and IPS Empress (Ivoclar Vivadent). One hundred and twenty specimens were made in a single increment, light cured for 20 seconds on a polyester strip and stored for 24 hours in distilled water. The specimens were divided into 12 groups (n=10), distributed according to the type of composite resin and the finishing and polishing protocol: no finishing and polishing, finishing and polishing with Sof-Lex Pop On and additional polishing Astropol or felt disc with diamond paste. Then the specimens were subjected to a series of laboratory tests: average roughness (Ra) (evaluated by rugosimeter Taylor Hobson), scanning electron microscopy image (Hitachi Tabletop Microscope TM-3000), atomic force microscopy image (AFM-9700 SPM) and wettability (goniometer adapted). Statistical analyzes were performed using analysis of variance (ANOVA) of two factors and Tukey's test. The tests were used to assess the presence of statistically significant differences between the groups in the category surface roughness and wettability (p <0.01). There was no statistically significant difference between the resins under study and that both carried treatments improve the surface roughness and the wettability of the tested resins.