Consistency in the amount of linear polymerization shrinkage in Syringe-type composites

摘要

Objectives: The purpose of this study was to investigate whether the composite resin in a springs showed a consistent shrinkage through its content. Additionally, the amount of linear shrinkage was compared between materials. Methods: Five brands of syringe-type and one brand of carpule-type composite resins were used in this study to each brand, two to three Syringes were assigned. In the carpule-type composite, 15 carpules were used. The linear polymerization shrinkage was measured using a Custom-made linometer.