title: Significance of thermal cycling in microleakage analysis of root restorations.
abstract: Root surface cavities prepared in extracted premolars were restored with a selection of restorative materials. Prior to eosin dye immersion, one group of teeth was kept at constant temperature whilst another group underwent thermal cycling. The teeth were sectioned transversely through the restorations and an assessment of the degree of microleakage was used to compare the sealing ability of the selected materials. Eosin dye was able to discriminate more effectively between the microleakage behaviour of the restorative materials when samples were kept at a constant temperature.
authors.affiliation: Liverpool University Dental Hospital, UK.
authors.forename: M F
authors.initials: MF
authors.lastname: Chan
authors.forename: J C
authors.initials: JC
authors.lastname: Glyn Jones
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003188:Composite Resins / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry; D003763:Dental Leakage; D018772:Dental Marginal Adaptation; D003764:Dental Materials / Q000737:chemistry*; D003793:Dental Restoration, Permanent / Q000379:methods*; D004801:Eosine Yellowish-(YS); D005899:Glass Ionomer Cements / Q000737:chemistry; D005976:Glutaral / Q000737:chemistry; D006358:Hot Temperature; D006801:Humans; D008298:Maleates / Q000737:chemistry; D008689:Methacrylates / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D018709:Statistics, Nonparametric; D014092:Tooth Root
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D005899:Glass Ionomer Cements; D008298:Maleates; D008689:Methacrylates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; C069300:Tripton resin; C029824:urethane dimethacrylate luting resin; C076985:Pekalux; D003723:Dental Amalgam; C040964:Ketac-Fil; C044372:Gluma; D005976:Glutaral; D004801:Eosine Yellowish-(YS)