Effect of ion supplementation of a commercial soft drink on tooth enamel erosion

Autor(es)

Magalhaes, A. C. ; Moraes, S. M. ; Rios, D. ; Buzalaf, M. A. R.

• Tipo de documento: Artigo Científico
• Fonte: Food Additives and Contaminants Part A-Chemistry Analysis Control Exposure; v. 26, n. 2, p. 5-pg., 2009-01-01.

Resumo

Acidic soft drinks are potentially erosive for dental hard tissues. This in vitro study evaluated the effect of calcium, fluoride, iron and phosphate, supplemented alone or in combination to a commercial citric acid-based carbonated beverage on dental erosion. Ninety enamel samples (4 x 4 x 3 mm) were randomly allocated to nine groups (n = 10): G1 - pure beverage (control); G2 - with 1 mM Ca; G3 - with 0.047 mM F; G4 - with 1 mM Fe; G5 - with 1 mM P; G6 - with 1 mM Ca and 0.047 mM F; G7 - with 1 mM Ca and 1 mM P; G8 - with 1 mM Fe and 0.047 mM F; and G9 - with 1 mM Ca, 1 mM P, 0.047 mM F and 1.0 mM Fe. The samples were subjected to six pH cycles over a 24-h period. In each cycle, the samples were immersed in pure or modified beverage (1 min) and in artificial saliva (59 min). During the remaining period (18 h), the samples were maintained in artificial saliva. Enamel loss was assessed by profilometry (mm). Data were tested using ANOVA and Tukey's tests (p < 0.05). Highest enamel losses were observed in the control group (G1) and in the groups containing Fe (G4 and G8). The groups containing Ca (G2 and G6) showed significantly less wear compared to control. In conclusion, the modification of an erosive soft drink with low concentrations of Ca with or without F may reduced its erosive potential. (AU)

• Processo FAPESP: 05/54203-3 - Influencia de diferentes ions na erosao dentaria.
• Beneficiário: Ana Carolina Magalhães
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 05/04017-9 - Avaliacao in vitro do efeito de um refrigerante modificado pela adicao de ions sobre a erosao de esmalte bovino.
• Beneficiário: Samanta Mascarenhas Moraes
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica