Impact of different fluoride concentrations and pH of dentifrices on tooth erosion/abrasion in vitro

Autor(es)

Moron, B. M. ^[1] ; Miyazaki, S. S. H. ^[1] ; Ito, N. ^[1] ; Wiegand, A. ^[2] ; Vilhena, F. ^[1] ; Buzalaf, M. A. R. ^[1] ; Magalhaes, A. C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Biol Sci, Bauru Sch Dent, BR-05508 Sao Paulo - Brazil

^[2] Univ Zurich, Dept Prevent Dent Periodontol & Cariol, CH-8006 Zurich - Switzerland

• Tipo de documento: Artigo Científico
• Fonte: AUSTRALIAN DENTAL JOURNAL; v. 58, n. 1, p. 106-111, MAR 2013.
• Citações Web of Science: 19

Resumo

Background This in vitro study analysed the effect of different fluoride concentrations in acidic or neutral liquid dentifrices in protecting enamel and dentine from erosive and abrasive wear. Methods Bovine enamel and dentine specimens (n=132) were randomly allocated to 11 groups (each n=12): experimental liquid dentifrices with 550ppm F, 1100ppm F, 5000ppm F or 0ppm F/placebo (each at pH 4.5 and pH 7.0); and commercial dentifrices with 550ppm F (Colgate Baby, pH 7.0), 1100ppm F (Crest, pH 7.0) and 5000ppm F (Duraphat, pH 7.0). The specimens were subjected to erosion for 90seconds, 4 times/day, over 7days. Immediately after the first and last erosion, the specimens were brushed for 15seconds using one of the dentifrices. Tooth wear was measured profilometrically (m) and analysed by ANOVA (p<0.05). Results All fluoridated liquid dentifrices significantly reduced enamel wear compared to the placebo and commercial dentifrices. Only liquid dentifrices with 1100 and 5000ppm F significantly reduced dentine wear compared to placebo dentifrice. The pH had no effect, but the consistency had a significant impact on the effect of dentifrices. Conclusions Liquid dentifrices with high F concentration appear to be a good option to prevent tooth wear. (AU)

• Processo FAPESP: 09/07470-7 - Avaliação do efeito de dentifrícios com diferentes concentrações de flúor, acidulados ou não, sobre a erosão e abrasão do esmalte dentário in vitro
• Beneficiário: Suzana Satie Miyazaki
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 09/08400-2 - Avaliação do efeito de dentifrícios experimentais na forma de gel, com crescentes concentrações de flúor, acidulados ou neutros, sobre a erosão e abrasão dentinária in vitro
• Beneficiário: Naiana Ito
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica