Polymerization behavior of bulk-fill and hybrid-type resin composites using different light curing mode

Purpose: This study aimed to investigate if the hardness ratio of bulk-fill-type resin composite is higher than that hybrid-type composite, determine when radiant exposure was same, and polymerization composites at top bottom surfaces affected by differences in irradiance light sources. Methods: The light-curing unit used LED G-Light Prima-II Plus (blue + violet LED) unit. light-cured were Clearfil AP-X bulk-fill flowable-type Gracefil BulkFlo. Composite specimens with 2-mm-thick polymerized Teflon molds using 24 J/cm2. methods 1,100 mW/cm2 for 22 s 600 40 s. Just after light-curing, Knoop measured each specimen a tester, calculated. Results: flowable type BulkFlo, showed lower AP-X. When created more uniform both composites.Conclusion: It suggested curing an materials.