title: [Effect of water storage and intrapulpal pressure on microleakage of  three restorative materials].
abstract: Three different restorative materials, Z100 composite, F2000 compomer and Vitremer glass ionomer cement are currently proposed for Class V restorations. The aim of this in vitro study was to evaluate the influence of water storage and the simulated intrapulpal pressure (sIP) on the quality of the margins of class V restorations located both in enamel and dentin. The water resorption of restorative materials containing hydrophilic groups (compomers and glass ionomer cements) can favourably modify the marginal sealing ability by hydroscopic expansion. The influence of the sIP was specific to the material. While F2000 compomer and Vitremer glass ionomer cement were un-influenced by sIP, with Z100 composite a significant difference could be observed. It was concluded that F2000 compomer and Vitremer glass ionomer cement showed significantly less microleakage, which means a better marginal sealing ability than Z100 composite.
authors.affiliation: Semmelweis Egyetem, Fogorvostudományi Kar, Konzerváló Fogászati Klinika, Budapest.
authors.forename: A E
authors.initials: AE
authors.lastname: Balogh
authors.forename: D
authors.initials: D
authors.lastname: Bouter
authors.forename: A
authors.initials: A
authors.lastname: Fazekas
authors.forename: M
authors.initials: M
authors.lastname: Degrange
mesh_terms: D020770:Compomers; D003188:Composite Resins; D003782:Dental Pulp; D003793:Dental Restoration, Permanent; D005899:Glass Ionomer Cements; D006801:Humans; D066298:In Vitro Techniques; D011312:Pressure; D012822:Silicon Dioxide; D014867:Water; D015040:Zirconium
chemical_list: D020770:Compomers; D003188:Composite Resins; D005899:Glass Ionomer Cements; C083568:Z100 composite resin; D014867:Water; D012822:Silicon Dioxide; D015040:Zirconium