The Porosity in Light-cured Composite Resins

Abstract

This study examined the relationship between porosity and mechanical endurance in light-cured composite resin.Consistency depended on the shape of filler particles in the composite resin and air bubbles decreased when the consistency was lowered by a surface-active agent or heating.On statistical analysis, there was no relationship between fatigue endurance and air bubbles in the resin paste.However, there was a tendency toward increasing endurance as the air bubbles in cured composite resin decreased.