Gul, PinarAlp, Hamit H.Ozcan, Mutlu2025-05-102025-05-1020201343-49341880-492610.2334/josnusd.19-02212-s2.0-85086946865https://doi.org/10.2334/josnusd.19-0221https://hdl.handle.net/20.500.14720/7089Alp, Hamit Hakan/0000-0002-9202-4944The purpose of this study was to determine the depth of cure and the type and amount of monomers released from bulk-fill composites in different curing protocols. Five different composite resins Filtek Bulk-Fill Posterior, Filtek Bulk-Fill Flowable, SureFil SDR, X-tra Fil, and X-tra base. were used. A light-emitting diode (LED) device was used in 3 different modes (standard, high power, and extra power mode), and a halogen light device was also used as a control. Surface hardness was measured and the depth of cure was calculated. Monomer analysis was performed using high performance liquid chromatography (HPLC). The data were analyzed using Tamhane's T2 post-hoc test (alpha = 0.05). The cure depth for all materials except for Filtek Bulk-Fill Posterior (extra power mode) and Filtek Bulk-Fill Flowable (high power and extra power modes) was over 80%. Under the conditions of this study, the amount of monomer released from composite resins changed according to the type of composite resin and the light mode used.eninfo:eu-repo/semantics/openAccessBulk-Fill Composite ResinsCure DepthCuring ModesLight Curing UnitsMonomer ReleaseArticle623Q4Q228829232475863WOS:000543496600010