Faculty of Dentistry, Department of Pediatric Dentistry, Ordu University, Ordu, 52200, Turkey.
Pediatric Dentist, Ordu, 52200, Turkey.
BMC Oral Health. 2024 Feb 15;24(1):244. doi: 10.1186/s12903-024-04005-2.
Today, resin materials are used in the restoration of permanent and deciduous teeth or as fissure sealants. The materials can contain different types of monomers (Bis-GMA, UDMA, TEGDMA). These monomers can be released into the oral cavity after polymerization. Residual monomers released from resin-containing restorative materials after polymerization have been reported to have negative effects on mechanical properties. The aim of our study is to evaluate the amount of residual monomers released after polymerization of different flowable composite resin materials using two different modes of LED light source. Composite disc samples (8 mm diameter/2 mm depth) prepared for each material group were polymerized using two different modes of the LED light device (Standard mode and extra power mode). HPLC (High Performance Liquid Chromatography) device was used to measure the amount of residual monomer release at 1 h, 1 day, 3 days and 7 days periods. Pairwise comparison of the differences between the materials was performed by Post-hoc test. For each residual monomer, the Kruskal Wallis test was used to analyze the difference between the materials in standard mode and the difference between the materials in extra power mode. According to the results of the study; Grandio flow flowable composite showed the highest release of TEGDMA and Bis-GMA while SDR® Flow flowable composite showed the lowest release of TEGDMA, Bis-GMA and UDMA. For all materials, the extra power mode resulted in more residual monomer release. TEGDMA and Bis-GMA release was detected in all tested flowable composites at all time periods.
如今，树脂材料被用于修复恒牙和乳牙，或作为窝沟封闭剂。这些材料可能含有不同类型的单体（双酚 A 二缩水甘油醚、二甲基丙烯酸酯、三乙二醇二甲基丙烯酸酯）。聚合后，这些单体可能会释放到口腔中。已报道聚合后含树脂修复材料中释放的残留单体对机械性能有负面影响。我们的研究旨在使用两种不同的 LED 光源模式，评估不同流动性复合树脂材料聚合后残留单体的释放量。为每个材料组制备的复合盘样品（8 毫米直径/2 毫米深度），使用 LED 光设备的两种不同模式（标准模式和额外功率模式）进行聚合。HPLC（高效液相色谱）设备用于测量聚合后 1 小时、1 天、3 天和 7 天的残留单体释放量。采用事后检验对材料之间的差异进行两两比较。对于每种残留单体，采用 Kruskal Wallis 检验分析标准模式下材料之间的差异和额外功率模式下材料之间的差异。根据研究结果：Grandio flow 流动性复合树脂释放的 TEGDMA 和双酚 A 二缩水甘油醚最高，而 SDR®Flow 流动性复合树脂释放的 TEGDMA、双酚 A 二缩水甘油醚和二甲基丙烯酸酯最低。对于所有材料，额外功率模式会导致更多残留单体释放。在所有测试的流动性复合材料中，在所有时间段均检测到 TEGDMA 和双酚 A 二缩水甘油醚的释放。
