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1.
Braz. j. oral sci ; 10(2): 105-108, Apr.-June 2011. tab, ilus
Article in English | LILACS, BBO | ID: lil-599382

ABSTRACT

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 ProDiscs (FGM); G5- Sof-Lex Discs (3M ESPE); G6- Robinson bristle brushes with pumice paste for20 s and felt disc with 2-4 ìm 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, ìm) was measured using Surf-Corder profilometer SE 1700. Data were subjected to one-way ANOVA andTukey’s test at 5% significance level. Results: G3 presented the highest surface roughness meanvalue (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.


Subject(s)
Composite Resins , Dental Polishing , Nanotechnology
2.
RFO UPF ; 3(2): 15-24, jul.-dez. 1998. ilus, tab, graf
Article in Portuguese | LILACS, BBO | ID: lil-250209

ABSTRACT

Este trabalho avaliou a rugosidade superficial dos restauradores Z100 e Compoglass produzida pela escovaçäo com as escovas dentais Oral-B 30, Alcance Reach Control, Kolinos Doctor Flexível e Colgate Total. Cada grupo de escova foi dividido em dois subgrupos, conforme associaçäo com água e dentifrício. Os corpos-de-prova foram escovadas mecanicamente, e a superfície foi analisada com auxílio de um rugosímetro. O Compoglass escovado com dentifrício e escova Oral-B 30 apresentou a maior média numérica de rugosidade, seguida por Alcance Reach Control e Holynos Doctor Flexível, que näo diferiram entre si estatisticamente, e Colgate Total, com a menor média estatística. Para Z100, näo houve diferença entre a rugosidade produzida após escovaçäo com dentifrício e os diferentes tipos de escovas dentais. O mesmo näo aconteceu com o Compoglass, que também apresentou maior valor de rugosidade superficial em relaçäo ao Z100


Subject(s)
Composite Resins/analysis , Dental Devices, Home Care , Dentifrices/analysis , Tooth Abrasion , Toothbrushing
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