Idioma:

Effect of chemical degradation followed by toothbrushing on the surface roughness of restorative composites

Voltarelli, Fernanda Regina ; Santos-Daroz, Claudia Batitucci dos ; Alves, Marcelo Corrêa ; Cavalcanti, Andrea Nóbrega ; Marchi, Giselle Maria

Journal of applied oral science, 2010-12, Vol.18 (6), p.585-590 [Periódico revisado por pares]

Brazil: Faculdade de Odontologia de Bauru da Universidade de São Paulo

Texto completo disponível

Citações Citado por

Enviar para

Título:
Effect of chemical degradation followed by toothbrushing on the surface roughness of restorative composites
Autor: Voltarelli, Fernanda Regina ; Santos-Daroz, Claudia Batitucci dos ; Alves, Marcelo Corrêa ; Cavalcanti, Andrea Nóbrega ; Marchi, Giselle Maria
Assuntos: Analysis of Variance ; Citric Acid - chemistry ; Composite resins ; Composite Resins - chemistry ; Composite Resins - metabolism ; Dental materials ; Dentistry ; DENTISTRY, ORAL SURGERY & MEDICINE ; Ethanol - chemistry ; Heptanes - chemistry ; Immersion ; Materials Testing ; Microscopy, Electron, Scanning ; Original ; Saliva, Artificial - chemistry ; Solubility ; Surface Properties ; Time Factors ; Tooth Abrasion ; Toothbrush ; Toothbrushing - adverse effects
É parte de: Journal of applied oral science, 2010-12, Vol.18 (6), p.585-590
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The aim of the present study was to assess the effect of the exposure to food-simulating liquids prior to brushing simulation on the surface roughness of five composite materials (Quixfil, Filtek Supreme, Esthet-X, Filtek Z250, Tetric Ceram). Twenty cylinders (5 mm diameter and 4 mm height) of each composite were randomly allocated to 4 groups (n=5), according to the food-simulating liquid in which they were immersed for 7 days at 37°C: artificial saliva, heptane, citric acid, and ethanol. After this period, the top surface of composite cylinders was submitted to 7,500 brushing cycles (200 g load). Measurements of the surface roughness (Ra, microm) were carried out before and after the exposure to the chemicals/brushing simulation. Changes on the morphology of composite surfaces were observed through scanning electron microscopy (SEM). The statistical analysis (ANOVA with cofactor / Tukey's test, α=5%) detected a significant interaction between solutions and composite resins. Esthet-X, Filtek Z250 and Tetric Ceram were not affected by the food-simulating liquids/toothbrushing. Citric acid and ethanol increased the surface roughness of Quixfil and Filtek Supreme, respectively. SEM images corroborate the surface roughness findings, demonstrating the negative effect from chemical solutions and mechanical abrasion. The surface roughness of composite resin materials are differently affected by the food-simulating solutions, depending on the immersion media.
Editor: Brazil: Faculdade de Odontologia de Bauru da Universidade de São Paulo
Idioma: Inglês;Português

Links

View this record in MEDLINE/PubMed

Voltar para lista de resultados

Anterior Resultado 9 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Effect of chemical degradation followed by toothbrushing on the surface roughness of restorative composites

Voltarelli, Fernanda Regina ; Santos-Daroz, Claudia Batitucci dos ; Alves, Marcelo Corrêa ; Cavalcanti, Andrea Nóbrega ; Marchi, Giselle Maria

Brazil: Faculdade de Odontologia de Bauru da Universidade de São Paulo

Buscando em bases de dados remotas. Favor aguardar.