Relationship among visible light source, composite resin polymerization shrinkage, and hygroscopic expansion

Kevin J. Donly, Alan Dowell, Chrysoula Anixiadas, Theodore P. Croll

Research output: Contribution to journalArticle

6 Scopus citations


Composite resins contract during polymerization, and studies have shown that light-cured composite resins shrink toward the polymerizing light source. The purpose of this study was to investigate differences in the adaptation of composite resin to the axial wall in Class V restorations following light curing from the lingual or facial aspects. Polymerization contraction in relation to hygroscopic expansion of the restoration was also investigated. Results showed no statistically significant differences P <. 05) in the adaptation of composite resin to the axial wall, regardless of the polymerization technique, the composite resin, or the effects of hygroscopic expansion.

Original languageEnglish (US)
Pages (from-to)883-886
Number of pages4
JournalQuintessence international
Issue number11
Publication statusPublished - Jan 1 1990


ASJC Scopus subject areas

  • Dentistry(all)

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