Build-up and Repair of Light-cured Composites: Bond Strength

D. B. Boyer, K. C. Chan, J. W. Reinhardt

Research output: Contribution to journalArticle

99 Scopus citations

Abstract

Interfacial bond strengths of light-activated composites were measured as a function of age using a transverse strength test. Bond strength between layers decreased with the age of the initial layer and reflected the setting curves of the composites. The highly-filled composites exhibited the greatest bond strengths. Uncut surfaces provided a better substrate for bonding than did ground surfaces. Use of a bonding agent on both uncut and ground surfaces improved bond strengths. Mean repair strengths of light-activated composites were similar to those of selfcuring composites. Composites with ground surfaces aged for one wk had mean repair strengths 27% of the cohesive strength without bonding agent and 48% with bonding agent.

Original languageEnglish (US)
Pages (from-to)1241-1244
Number of pages4
JournalJournal of Dental Research
Volume63
Issue number10
DOIs
StatePublished - Oct 1984

ASJC Scopus subject areas

  • Dentistry(all)

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