The influence of mouthrinses and simulated toothbrushing on the surface roughness of a nanofilled composite resin.
The aim of this study was to determine the influence of mouthrinses on the surface roughness of a nanofilled composite resin after toothbrushing. One hundred nanofilled composite resin specimens were prepared and randomly distributed into two groups-brushed and non-brushed-and then assigned to five subgroups, according to the mouthrinse solutions (n = 10): Colgate Plax Fresh Mint, Oral B, Cepacol, Colgate Plax, and artificial saliva. Each sample was immersed in 20 mL of the mouthrinses for 1 minute, 5 days per week, twice a day, for a 3-week period. The control group used in the study was one in which the specimens were not subjected to brushing and remained only in artificial saliva. Toothbrushing was performed once a week for 1 minute, for 3 weeks. Surface roughness measurements (Ra) were performed after the immersion period and toothbrushing, by means of a profilometer. Data were analyzed by two-way ANOVA and Tukey's test. Analysis revealed that the association between toothbrushing and Colgate Plax Fresh Mint produced the lowest surface roughness (p < 0.05). All other groups tested (Oral B, Cepacol, Colgate Plax, artificial saliva) exhibited no statistically significant differences between surfaces, whether subjected to toothbrushing or not (p < 0.05). It was concluded that the surface roughness of the nanofilled composite resin tested can be influenced by the mouthrinse associated with toothbrushing.
Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil. keicosano@usp.br
Keico Graciela Sano
KG
Trauth
Ana Paula Terossi de
AP
Godoi
Vivian
V
Colucci
Silmara Aparecida Milori
SA
Corona
Alma Blásida Concepción Elizaur Benitez
AB
Catirse
D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry*; D006801:Humans; D007101:Immersion; D008422:Materials Testing; D009067:Mouthwashes / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D011897:Random Allocation; D012464:Saliva, Artificial / Q000737:chemistry; D013499:Surface Properties; D013997:Time Factors; D014072:Tooth Abrasion; D014099:Toothbrushing
D003188:Composite Resins; D009067:Mouthwashes; D012464:Saliva, Artificial