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In Vitro Evaluation of Caries Risk in Enamel Adjacent to Glass Ionomer Cements

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Author(s): Ricardo Carvalhaes FRAGA | Karine Taveira da COSTA | Marivaldo Diniz MACHADO

Journal: Pesquisa Brasileira em Odontopediatria e ClĂ­nica Integrada
ISSN 1519-0501

Volume: 7;
Issue: 3;
Start page: 205;
Date: 2007;
Original page

Keywords: Glass Ionomer Cements | Dental Materials | Cariostatic Agents

ABSTRACT
Objective: To evaluate the anticariogenic potential of conventionalglass ionomer cements for different clinical applications [type I(cementation), type II (restoration) and type III (lining)] under highlycariogenic conditions using in vitro pH cycling.Method: Forty dental surfaces were selected and assigned tofour groups. In each group, the corresponding material was appliedaccording to its clinical indication: Vidrion C for cementation ofindirect restorations, Vidrion R and Concept composite resin (controlgroup) for direct restorations, and Vidrion F as a cavity liner. Artificialenamel carious lesions adjacent to the materials were induced bya 14-day pH cycling dynamic model. The dental surfaces wereevaluated by previously designated examiners, who assignedvalues according to the presence and severity of carious lesions.Results: Statistical analysis using odds ratio showed statisticallysignificant difference among the groups. Mann-Whitney Ucomparative test indicated that the control group (composite resin)differed significantly from the other groups (p
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