title: In vitro-evaluation of secondary caries formation around restoration.
abstract: The objective of this in vitro study was to evaluate demineralization around restorations. Class V preparations were made on the buccal and lingual surfaces of each tooth. TPH (Group 1), Fuji II LC (Group 2), Tetric (Group 3), Dyract (Group 4), GS 80 (Group 5) and Chelon Fil (Group 6) were randomly placed in equal numbers of teeth. The teeth were submitted to a pH-cycling model associated with a thermocycling model. Sections were made and the specimens were examined for the presence of demineralization under polarized light microscopy. Demineralization was significantly reduced with Chelon Fil (Group 6). Furthermore, a similar inhibitory effect on the development of demineralization was observed in Groups 2, 4 and 5.
authors.affiliation: Department of Restorative Dentistry, Araçatuba School of Dentistry, UNESP, São Paulo, Brazil. rcokida@foa.unesp.br
authors.forename: Ricardo Coelho
authors.initials: RC
authors.lastname: Okida
authors.forename: Fernando
authors.initials: F
authors.lastname: Mandarino
authors.forename: Renato Herman
authors.initials: RH
authors.lastname: Sundfeld
authors.forename: Rodrigo Sversut
authors.initials: RS
authors.lastname: de Alexandre
authors.forename: Maria Lúcia M M
authors.initials: ML
authors.lastname: Sundefeld
mesh_terms: D002327:Cariostatic Agents / Q000008:administration & dosage*; D020770:Compomers / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry; D003763:Dental Leakage / Q000209:etiology; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent / Q000009:adverse effects* / Q000379:methods; D005459:Fluorides / Q000008:administration & dosage*; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D008859:Microscopy, Polarization; D012008:Recurrence; D017001:Tooth Demineralization / Q000209:etiology* / Q000517:prevention & control; D014089:Tooth Remineralization / Q000379:methods*
chemical_list: D002327:Cariostatic Agents; D020770:Compomers; D003188:Composite Resins; D005899:Glass Ionomer Cements; D003723:Dental Amalgam; D005459:Fluorides