Factors involved in mechanical fatigue degradation of dental resin composites

U. Lohbauer, R. Belli, J. L. Ferracane

Research output: Contribution to journalReview article

62 Scopus citations

Abstract

The design of clinical trials allows for limited insights into the fatigue processes occurring in resin composites and the factors involved therein. In vitro studies, in contrast, can fundamentally narrow study interests to focus on particular degradation mechanisms and, to date, represent the major contributors to the state of knowledge on the subject. These studies show that microstructural features are important in determining strength and fracture toughness, whereas fatigue resistance is mainly related to the susceptibility of the matrix and the filler/matrix interface to mechanical and chemical degradation. In this review, we focus on fracture mechanisms occurring during fatigue, on the methods used to assess them, and on additional phenomena involved in the degradation of initial mechanical properties of resin composites.

Original languageEnglish (US)
Pages (from-to)584-591
Number of pages8
JournalJournal of dental research
Volume92
Issue number7
DOIs
StatePublished - Jul 2013

Keywords

  • composite resins
  • crack propagation
  • cyclic loading
  • fracture toughness
  • hydrolysis
  • viscoelasticity

ASJC Scopus subject areas

  • Dentistry(all)

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