Developing a more complete understanding of stresses produced in dental composites during polymerization

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295 Scopus citations

Abstract

The polymerization of dental composites is accompanied by significant shrinkage and the production of internal stress. This stress has been implicated as a causative factor for marginal discrepancies seen in composite restorations. This paper provides an overview of the origins of these stresses in polymerizing dental composites, a brief description of the methods for measuring them, a discussion of what little is known of the relationship between contraction stress and outcomes, an identification of the materials and placement factors that affect contraction stress, and a description of several strategies proposed to reduce the stresses. The phenomenon of contraction stress development in dental composite restoratives is highly complex, and despite many investigations, remains as a significant clinical concern.

Original languageEnglish (US)
Pages (from-to)36-42
Number of pages7
JournalDental Materials
Volume21
Issue number1
DOIs
StatePublished - Jan 1 2005

Keywords

  • Contraction stress
  • Dental composite
  • Residual stress

ASJC Scopus subject areas

  • Materials Science(all)
  • Dentistry(all)
  • Mechanics of Materials

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