Optimization of mechanical properties in CQ and Lucirin-TPO resin composites

INTRODUCTION: The polymerization kinetics of camphorquinone (CQ) and Lucirin-TPO-based (TPO) resin composites are notably different [1,2]. It has been shown that TPO-composites polymerize to higher conversion degrees (DC) with reduced irradiation times. However these results were obtained for specific formulations. It was necessary to investigate if resin composites of different viscosities would present the same trend, through the measurement of mechanical properties.