Ahmed Hany Mohamed Aly, Omar Nor Shamsuria, Luddin Norhayati, Saini Rajan, Saini Deepti
Department of Restorative Dentistry, School of Dental Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
J Conserv Dent. 2011 Oct;14(4):406-8. doi: 10.4103/0972-0707.87212.
This study aims to evaluate the cytotoxicity of a new fast set highly viscous conventional glass ionomer cement (GIC) with L929 fibroblasts.
The cement capsule was mixed and introduced into a paraffin wax mould. After setting, the cement was incubated in Dulbecco's Modified Eagle's Medium. Six replicates of the material extract were added to the culture medium in 96-well plates. L929 mouse fibroblast cells were added into the wells and then incubated for 48 h. Dimethylthiazol diphenyltetrazolium bromide test was performed for cytotoxicity evaluation.
The results showed that this GIC brand did not yield a half-maximal inhibitory concentration value, IC50, as the cell viability was above 50% at all concentrations. Cell viability over 90% was observed at the concentrations of 3.125 and 1.5625 mg/ml. Maximum concentration of the material showed cell viability of 59.4%.
This new fast set highly viscous conventional GIC showed low cytotoxicity to mouse fibroblast cells, and it can be suggested as a substitute for dental cements exhibiting a long setting time.
本研究旨在评估一种新型快速凝固的高粘性传统玻璃离子水门汀(GIC)对L929成纤维细胞的细胞毒性。
将水门汀胶囊混合后放入石蜡模具中。凝固后,将水门汀在杜氏改良伊格尔培养基中孵育。将材料提取物的六个重复样本加入96孔板的培养基中。将L929小鼠成纤维细胞加入孔中,然后孵育48小时。进行噻唑蓝比色法试验以评估细胞毒性。
结果表明,该品牌的GIC未产生半数最大抑制浓度值(IC50),因为在所有浓度下细胞活力均高于50%。在浓度为3.125和1.5625毫克/毫升时观察到细胞活力超过90%。材料的最大浓度显示细胞活力为59.4%。
这种新型快速凝固的高粘性传统GIC对小鼠成纤维细胞显示出低细胞毒性,并且可以建议将其作为凝固时间长的牙科水门汀的替代品。