Efeito de materiais restauradores fluoretados no desenvolvimento de carie secundaria em dentina redicular

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

In vitro studies have shown that fluoride containing restorative materials can inhibit root dentin secondary caries. However, questions still arise on the potential of some restorative materials, on the extension of the cariostatic effect from the restoration margins and on the in vivo ability of such materials to prevent secondary root caries. This thesis, comprised by 4 manuscripts, was designed (1) to test the cariostatic effect of fluoride containing adhesive systems (FAS) in vitro, (2) to determine the extension of the cariostatic effect of a glass-ionomer cement (GIC), a resin-modified glass-ionomer (RMGI), a polyacid-modified composite resin (PMCR) and a fluoridated composite resin (FCR) on root dentin in vitro, (3) to develop an in situ model for the study of root caries and (4) to assess whether the GIC is important or not to prevent secondary root caries in situ when fluoride dentifrice is frequently used. The FASs tested showed no evident cariostatic effect. The GIC and the RMGI showed cariostatic effect up to 0.3 and 0.15 mm from the margin of the restoration, respectively, contrasting to the lack of effect of PMCR and FCR. The in situ model tested was proven to be adequate to the study of either root caries progression or root caries inhibition. No additional cariostatic effect could be attributed to the GIC when fluoride dentifrice was used in situ. It could be concluded that the cariostatic potential as well as the extension of this effect on root dentin is dependent of the fluoride containing restorative material and may not be relevant in in situ conditions when fluoride dentifrice is frequently used

ASSUNTO(S)

caries dentarias dentifricio materiais dentarios dentes - tratamento odontologia - restauração dentina

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