@article{Schmitt_Puppin-Rontani_Naufel_Ludwig_Ueda_Correr Sobrinho_2015, place={Limeira, SP}, title={Effect of finishing and polishing techniques on the surface roughness of a nanoparticle composite resin}, volume={10}, url={https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641647}, DOI={10.20396/bjos.v10i2.8641647}, abstractNote={Aim: To evaluate the surface roughness of the resin Filtek Z350 (3M ESPE) after different finishing and polishing techniques. Methods: Sixty specimens of 7x2 mm were made and distributed in 6 groups (n=10), according to the technique employed: G1 (control) – polyester strip – no finishing or polishing; G2- multi-blade burs; G3- diamond burs 3195F and 3195FF; G4- Diamond Pro Discs (FGM); G5- Sof-Lex Discs (3M ESPE); G6- Robinson bristle brushes with pumice paste for 20 s and felt disc with 2-4 µm diamond paste for 30 s. The specimens were stored in artificial saliva at 37°C for 7 days. After the finishing and polishing techniques, surface roughness (Ra, µm) was measured using Surf-Corder profilometer SE 1700. Data were subjected to one-way ANOVA and Tukey’s test at 5% significance level. Results: G3 presented the highest surface roughness mean value (0.61). G5 presented the lowest surface roughness mean value (0.15), but it was not significantly different from G1, G4 and G6. Conclusions: According to the obtained results, Z350 composite resin presented the lowest surface roughness when finishing and polishing systems were used (Sof-lex and Diamond Pro discs and Robinson bristle brush with pumice plus Diamond® felt disc with Diamond Excel® paste). The use of diamond burs (G3) resulted in the highest composite surface roughness. There was no significantly different between G1, G4, G5 and G6.}, number={2}, journal={Brazilian Journal of Oral Sciences}, author={Schmitt, Vera Lucia and Puppin-Rontani, Regina Maria and Naufel, Fabiana Scarparo and Ludwig, Danielle and Ueda, Julio Katuhide and Correr Sobrinho, Lorenço}, year={2015}, month={Nov.}, pages={105–108} }