Abstract

LUCENA, Maria Cecília Miranda de; GOMES, Renato Victor da Silva  and  SANTOS, Maria do Carmo Moreira da Silva. Assessment surface roughness of the flwable resin filtek Z 350 3M/ espe exposed to mouthrinses with and without alcohol. Odontol. Clín.-Cient. (Online) [online]. 2010, vol.9, n.1, pp. 59-64. ISSN 1677-3888.

The purpose of this study was to verify, in vitro, if there is a change of surface roughnesscaused by the use of mouthrinses with and without alcohol on the compositeresin Filtek Z350 3M/ESPE flow. The measure of average roughness Ra was assessedby profilometry. Three mouthrinses currently marketed were used: Listerine, Plax Classicand Plax Kids, in addition to distilled water and alcohol. Fifty one disc specimenswere prepared, divided into six groups: distilled water, ethyl alcohol, Listerine, Plax Classicand Plax Kids (with 10 specimens each), and the group without treatment (consistingof only 1 specimen). The negative and positive controls were carried out bythe sample without treatment and ethanol, respectively. The surface smoothness was obtained with a polyester strip, avoiding any influence of the process of polishing. The specimens were immersed for a total period of 12 hours, equivalent to 1 year of use of mouthrinses. It was possible to see a significant increase of roughness in all groups,except the Plax Classic, as compared to the fixed value from the specimen without attack, but there was no significant difference between the solutions tested.

Keywords : flowable Resin; surface roughness; mouthrinses.