Effect of light-curing units and activation mode on polymerization shrinkage and shrinkage stress of composite resins
نویسندگان
چکیده
منابع مشابه
Effect of Light-curing Units and Activation Mode on Polymerization Shrinkage and Shrinkage Stress of Composite Resins
The aim of this study was to evaluate the polymerization shrinkage and shrinkage stress of composites polymerized with a LED and a quartz tungsten halogen (QTH) light sources. The LED was used in a conventional mode (CM) and the QTH was used in both conventional and pulse-delay modes (PD). The composite resins used were Z100, A110, SureFil and Bisfil 2B (chemical-cured). Composite deformation u...
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Polymerization shrinkage stress of resin-based materials have been related to several unwanted clinical consequences, such as enamel crack propagation, cusp deflection, marginal and internal gaps, and decreased bond strength. Despite the absence of strong evidence relating polymerization shrinkage to secondary caries or fracture of posterior teeth, shrinkage stress has been associated with post...
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ژورنال
عنوان ژورنال: Journal of Applied Oral Science
سال: 2008
ISSN: 1678-7757
DOI: 10.1590/s1678-77572008000100008