Dental Practice, ul. Arki Bożka 32, 75-365 Koszalin, Poland.
Department of Conservative Dentistry and Endodontics, Pomeranian Medical University of Szczecin, Al. Powstańców Wlkp. 72, 70-111 Szczecin, Poland.
Biomed Res Int. 2016;2016:9808432. doi: 10.1155/2016/9808432. Epub 2016 Dec 20.
The present study assessed the chemical elements in two novel calcium silicate-containing root canal sealers, BioRoot RCS and Well-Root ST, compared to a calcium silicate-containing root canal sealer that has been on the market for several years, MTA Fillapex, and epoxy resin-based sealer AHPlus. The sealers were mixed and manipulated according to the manufacturers' instructions. Twelve cylindrical molds (inner diameter 4 mm; height 3 mm) were placed on a glass petri dish and packed with the materials. The dish was transferred to an incubator. After 72 h the molds were examined by scanning electron microscopy and energy dispersive X-ray microanalysis. BioRoot RCS and Well-Root ST had high peaks of calcium, zirconium, oxygen, carbon, silicon, and chlorine. Well-Root ST also had sodium, magnesium, aluminum, and titanium peaks. MTA Fillapex and AHPlus had carbon, oxygen, calcium, titanium, and bismuth peaks. A silicon peak was also observed for MTA Fillapex, and zirconium and tungsten peaks for AHPlus. BioRoot RSC had the highest degree of purity. The clinical implication of metals contained in the other sealers needs to be investigated.
本研究评估了两种新型含硅酸钙的根管封闭剂（BioRoot RCS 和 Well-Root ST）中的化学元素，与已上市多年的含硅酸钙根管封闭剂 MTA Fillapex 和基于环氧树脂的封闭剂 AHPlus 进行了比较。根据制造商的说明混合和操作封闭剂。将 12 个圆柱形模具（内径 4mm；高 3mm）放置在玻璃培养皿上并用材料填充。将盘子转移到培养箱中。72 小时后，用扫描电子显微镜和能谱微分析检查模具。BioRoot RCS 和 Well-Root ST 具有高钙、锆、氧、碳、硅和氯峰值。Well-Root ST 还具有钠、镁、铝和钛峰值。MTA Fillapex 和 AHPlus 具有碳、氧、钙、钛和铋峰值。MTA Fillapex 也观察到硅峰值，而 AHPlus 则观察到锆和钨峰值。BioRoot RSC 的纯度最高。需要研究其他封闭剂中所含金属的临床意义。
