Analise visual do potencial cariostatico in vitro de materiais restauradores associados a aplicação de dentifricios

AUTOR(ES)
DATA DE PUBLICAÇÃO

2001

RESUMO

The prevention or arrestment of caries lesions around restorations may be done through plaque removal and use of topical fluorides. Restorative materiaIs that release fluoride are still recommended for patients with high caries risk, although the real effect of their association with topical fluorides is not known. The aim of this study was to evaluate, in vitro, the cariostatic effect of six restorative materiaIs that contain fluoride associated with fluoride and non-fluoride dentifrices on human dental enamel. Standardized class V cavities were prepared on 240 enamel fTagments,randomly assigned in 12 groups. After cavity restoration, the fragments were submitted to 1000 thermal cycles, and to demineralization/remineralization cycles, simulating a high cariogenic challenge. During pH cycles, slurries of fluoride and non-fluoride dentifuces were applied for tive minutes after demineralization solution. Artificial caries-like lesions formations were scored independently and blindly by tive calibrated examiners, using a 0 to 3 ordinal scale through visual inspection. The data were evaluated by Kruskal-Wallis test, followed by paired comparisons test (ά=0,05). There were no significant differences among restorative materiaIs when associated with fluoride dentifuces. Ketac-Fil was the unique that did not differ when associated with fluoride or non-fluoride dentifrices. Under experimental conditions, the association of restorative materiaIs with a fluoride dentifrice provided better cariostatic effect, except to the conventional glass ionomer cement, whose effect did not change with the dentifrice application.

ASSUNTO(S)

cimentos dentarios caries dentarias dentes - cuidado e higiene materiais dentarios fluor resinas dentarias

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