The influence of mouthrinses and simulated toothbrushing on the surface roughness of a nanofilled composite resin

Abstract

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.

Effect of a novel commercial potassium-oxalate containing tooth-desensitizing mouthrinse on the microhardness of resin composite restorative materials with different monomer compositions

“…However, the use of mouthrinses may produce deleterious side-effects on the surface and physical properties of restorative materials (2). According to Ozer et al (3), the detrimental effects of mouthrinses on resin composites must be taken into account.…”

“…Almeida et al (4) reported that the degradation of resin composites involves water sorption that results in a decrease in hardness and this mechanism is mainly dependent on the composition of the ‘polymeric matrix’. They have mentioned that the formulation of commercially available mouthrinses contains various substances, such as water, antimicrobial agents, salts, preservatives and, in some cases, alcohol (2,4,5). ‘Alcohol’ in the mouthrinses and low pH may soften the resin composite restorative materials (5,6).…”

“…The effects of mouthrinses on dental resin composites have been investigated extensively (2-5,6,9-11). However, there is little information available, to our knowledge, regarding the effects of ‘newly developed mouthrinse’ formulations on the microhardness of different monomer based composite systems.…”

Estudo do óleo essencial de Casearia sylvestris e da formulação de enxaguatório bucal. Caracterização química, citotoxidade, potencial antimicrobiano e efeito nas propriedades dos materiais odontológicos estéticos

“…Assim, vários materiais restauradores estéticos têm sido criados para melhorar o desempenho destes, tanto no aspecto da estética quanto no funcional. No entanto, estes materiais ainda se deterioram na presença de alguns fatores da cavidade bucal (SETTEMBRINI et al, 1995) como os agentes antissépticos (TRAUTH et al, 2012) e bebidas consumidas pelos pacientes (ERTAS et al, 2006;LEE e POWERS, 2007;GODOI, 2009). …”

“…No entanto, os materiais restauradores odontológicos disponíveis no mercado, ainda sofrem alterações nas suas propriedades físicas, químicas e mecânicas frente a algumas condições da cavidade oral como por exemplo, o consumo de bebidas com pigmentos (GODOI et al, 2010) e o uso de enxaguatórios bucais (TRAUTH et al, 2012).…”