Gul Pinar, Alp Hamit H, Özcan Mutlu
Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University.
Department of Biochemistry, Faculty of Medicine, Yüzüncü Yıl University.
J Oral Sci. 2020 Jun 23;62(3):288-292. doi: 10.2334/josnusd.19-0221. Epub 2020 May 31.
The 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 (α = 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.
本研究的目的是确定在不同固化方案下，大块填料复合树脂的固化深度以及释放的单体类型和数量。使用了五种不同的复合树脂，即Filtek Bulk-Fill Posterior、Filtek Bulk-Fill Flowable、SureFil SDR、X-tra Fil和X-tra base。使用发光二极管（LED）设备以3种不同模式（标准、高功率和额外功率模式）进行固化，同时也使用卤素灯设备作为对照。测量表面硬度并计算固化深度。使用高效液相色谱法（HPLC）进行单体分析。数据采用Tamhanes T2事后检验（α = 0.05）进行分析。除Filtek Bulk-Fill Posterior（额外功率模式）和Filtek Bulk-Fill Flowable（高功率和额外功率模式）外，所有材料的固化深度均超过80%。在本研究条件下，复合树脂释放的单体数量根据复合树脂类型和所使用的光照模式而变化。
