Otro
Chemical and morphological features of nanofilled composite resin: influence of finishing and polishing procedures and fluoride solutions
Registro en:
Microscopy Research and Technique, v. 75, p. 212-219, 2012.
1059-910X
0718519731550644
1307608053028698
6170275483934559
2863791918495150
Autor
Oliveira, Ana Luísa Botta Martins de
Santos, Patrícia Aleixo dos
Palma-Dibb, Regina Guenka
Garcia, Patrícia Petromilli Nordi Sasso
Resumen
This study evaluated the influence of finishing and polishing procedures and differ-ent fluoride solutions on superficial morphology and chemistry of the nanofilled composite resinSupreme XT (3M) through the EDX analysis and SEM evaluation. Circular specimens (n 5 30) of 10mm diameter and 2 mm thickness were prepared, with half of the sample assays finished and polishedwith Super-Snap1sandpaper. The experimental groups were divided according to the presence or ab-sence of finishing and polishing and solutions (arti ficial saliva, 0.0 5% of manipulated sodium fluoridesolution, Fluordent Re ach, Oral B, Fluorgard). Specimens were immersed in each respective solutionfor 1 min per day, during 60 days and stored in artificial saliva at 37 6 18C between immersion peri-ods. Topography and chemical analysis was qualitative. It was observed that specimens submitted tofinishing and polishing procedures had lower superficial degradation. Fluoride solutio ns promoted su-perficial alterations on specimens, being the highest degradation obtained with Fluordent Reach. Itca n be concluded that finishing and polishing procedures and the immersion media influence the su-perficial morphology of composite resin tested; the Fluordent Reach was the flu oride solution thatmo st affected the material’s surface.