Dentinal shear bond strength, microleakage, and contraction gap of visible light-polymerized liners/bases.

R. L. Cooley, Wayne W. Barkmeier

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The bond strength and microleakage patterns of three light-curing glass-ionomer cement liners/bases (Vitrebond, XR Ionomer, and Zionomer) were evaluated and compared to a fluoride-releasing resin (TimeLine) designed for the same use. Bond strength tests were performed at 24 hours and 7 days. At 24 hours Vitrebond, Time-Line, and Zionomer had statistically significantly greater bond strengths than XR Ionomer. At 7 days, Vitrebond had a statistically significantly stronger bond than the others. Microleakage was evaluated after 24 hours of thermocycling. Vitrebond and XR Ionomer had statistically significantly less leakage than the others, while TimeLine had significantly more leakage than the others. Polymerization contraction gaps between the liners/bases and dentin were examined with scanning electron microscopy. Contraction gaps were approximately 10 microns with Vitrebond and XR Ionomer and 5 microns with TimeLine. A contraction gap generally was not observed with Zionomer.

Original languageEnglish
Pages (from-to)467-474
Number of pages8
JournalQuintessence International
Volume22
Issue number6
StatePublished - Jun 1991

Fingerprint

Shear Strength
Light
Glass Ionomer Cements
Dentin
Fluorides
Polymerization
Electron Scanning Microscopy
Vitrabond
XR Bond
Zionomer
TimeLine

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Dentinal shear bond strength, microleakage, and contraction gap of visible light-polymerized liners/bases. / Cooley, R. L.; Barkmeier, Wayne W.

In: Quintessence International, Vol. 22, No. 6, 06.1991, p. 467-474.

Research output: Contribution to journalArticle

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