Title: In vitro fatigue behavior of restorative composites and glass ionomers
Authors: Braem, M J ×
Lambrechts, Paul
Gladys, S
Vanherle, Guido #
Issue Date: Mar-1995
Series Title: Dental Materials vol:11 issue:2 pages:137-41
Abstract: OBJECTIVES: This in vitro study was conducted to investigate the fatigue behavior of several dental restoratives, including composites, glass ionomers and a resin-reinforced glass ionomer. METHODS: Fatigue was imposed under a reverse stress-controlled regimen, following a staircase approach. Samples were stored and tested under both dry and wet conditions. The following parameters were measured and analyzed: Young's modulus, restrained fracture strength, and flexural fatigue limit. RESULTS: As a general trend, all products showed a decrease in Young's modulus following water sorption. For all products except the resin-reinforced glass ionomer, the same trend was seen in the restrained fracture strength. This is, however, no longer valid for the flexural fatigue limit: the trend is steady-state for the glass ionomers, status quo for the resin-reinforced glass ionomer, and all composites tested show a decrease. SIGNIFICANCE: The diversity in structure of both composites and glass ionomers does not allow findings for one product to be extrapolated to other similar products.
ISSN: 0109-5641
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Biomaterials - BIOMAT
× corresponding author
# (joint) last author

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