Artículos de revistas
Effect of fluoridated dentifrice and acidulated phosphate fluoride application on early artificial carious lesions
Registro en:
American Journal Of Dentistry. Mosher & Linder, Inc, v. 16, n. 2, n. 91, n. 95, 2003.
0894-8275
WOS:000182833600003
Autor
Leme, AFP
Tabchoury, CPM
Zero, DT
Cury, JA
Institución
Resumen
Purpose : To evaluate the effect of a combination of fluoride dentifrice and acidulated phosphate fluoride (APF) on enamel with incipient caries lesions. Materials and Methods: Bovine dental enamel blocks with artificial caries lesions were divided into four treatment groups and submitted to a pH-cycling model: (1) Placebo non-fluoridated dentifrice (PD); (2) Fluoridated dentifrice (171)), 1,100 ppm F; (3) APF (12,300 ppm F, pH 3.5) + PD; 4) APF + FD. APF was applied to enamel blocks of groups APF+PD and APF+FD before the pH-cycling regimen and all of them were exposed to dentifrice during the cycling. Results: The results showed that 61-81% of the fluoride previously deposited in enamel by APF was released to the media during the pH-cycling. The final concentration of fluoride in enamel in the group APF+PD was lower than that before the cycling (P< 0.05), but in the group APF+FD the reduction was not significant (P> 0.05). FD treatment was significantly more efficient than PD in rehardening the enamel surface and increasing the hardness of the caries lesions. APF+PD treatment was not more efficient than PD in increasing enamel hardness and an additive effect of APF+FD was not observed. 16 2 91 95