Role of the beam profile and sample geometry in the bonded-disk method on the shrinkage kinetics of two dental resins

Highlights • Real time imaging of the two dimensional (2D) axial shrinkage field in the bonded disk geometry is presented for two resin-based composites (RBCs). • The time-dependent 2D axial shrinkage field depends strongly upon the light curing unit beam profile, sample geometry, and RBC visco-elas...

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Bibliographic Details
Published in:Dental materials 2016-08, Vol.32 (8), p.1026-1035
Main Authors: Kostylev, I, Winters, T, Labrie, D, Price, R.B.T
Format: Article
Language:English
Subjects:
Advanced Basic Science
Bonding
Composite Resins
Curing
Curing Lights, Dental
Dental materials
Dental Stress Analysis
Dentistry
Disks
Kinetics
Materials Testing
Polymerization
Polymers
Resin composite
Resins
Resins, Synthetic
Shrinkage
Strain
Topography
Two dimensional
Viscosity
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Summary:Highlights • Real time imaging of the two dimensional (2D) axial shrinkage field in the bonded disk geometry is presented for two resin-based composites (RBCs). • The time-dependent 2D axial shrinkage field depends strongly upon the light curing unit beam profile, sample geometry, and RBC visco-elastic properties. • For a uniform beam profile and conventional sample geometry, the axial 2D shrinkage strain is uniform to within 4% over the central part of the sample.
ISSN:0109-5641
1879-0097
DOI:10.1016/j.dental.2016.05.010