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Title: Resin-modified glass ionomer cements: A comparison of water sorption characteristics
Authors: Yap, A.U.J. 
Keywords: Composite resins
Dental materials
Resin-modified glass ionomer cements
Water sorption
Issue Date: 1996
Citation: Yap, A.U.J. (1996). Resin-modified glass ionomer cements: A comparison of water sorption characteristics. Biomaterials 17 (19) : 1897-1900. ScholarBank@NUS Repository.
Abstract: The purpose of this study was to quantify and compare the amount of water absorbed by six commercially available resin-modified glass ionomer cements and to investigate the possible influence of time and resin content on water sorption. The materials evaluated included Variglass used as a restoration, base and liner; Fuji II LC; Fuji Liner; Vitrebond; Vitremer and Photac-Bond. Z100, a composite resin, was used as control. All specimens were manipulated according to manufacturers' instructions and then subjected to a water sorption test based on the ISO 4049 requirements. Storage in water was further extended to 1 month to evaluate the effects of time and indirectly cement maturity on water sorption. Data were subjected to one-way ANOVA and Duncan's test at 0.05 significance level. Results show that the composite resin control had significantly less water sorption than all the resin-modified polyalkenoate cements evaluated. Variglass when used as a base or restorative had the least water sorption after both 1 week and 1 month storage in water. The degree of water sorption was product dependent and appeared to be influenced by the resin (HEMA) content. The results also reflect a potential relationship between time (cement maturity) and water sorption.
Source Title: Biomaterials
ISSN: 01429612
DOI: 10.1016/0142-9612(95)00344-4
Appears in Collections:Staff Publications

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