Kaushik Mamta, Sharma Roshni, Reddy Pallavi, Pathak Pallavi, Udameshi Pooja, Vallakuruchi Jayabal Narmatha
Department of Conservative Dentistry and Endodontics, Army College of Dental Sciences, Chennapur, CRPF Road, Jai Jawahar Nagar Post, Secunderabad, Andhra Pradesh 500087, India.
Int J Biomater. 2014;2014:935240. doi: 10.1155/2014/935240. Epub 2014 Dec 3.
This in vitro study evaluated the presence of voids in powder-liquid and capsulated glass ionomer cement. 40 cavities were prepared on root surfaces of maxillary incisors and divided into four groups. Cavities were conditioned with glass ionomer cement liquid (GC Corporation, Tokyo, Japan) in Groups 1 and 3 and with dentin conditioner (GC Corporation, Tokyo, Japan) in Groups 2 and 4. Conventional powder-liquid glass ionomer cement (GC Fuji II, GC Corporation, Tokyo, Japan) was used as a restorative material in Groups 1 and 2. Capsulated glass ionomer cement (GC Fuji II, GC Corporation, Tokyo, Japan) was used in Groups 3 and 4. Samples were sectioned and viewed under stereomicroscope to check for the presence of voids within the cement and at the cement-tooth junction. Data was analyzed using one-way ANOVA and Tukey's post hoc tests. Group 4 showed statistically significant results (P < 0.05) when compared to Groups 1 and 2 for voids within the cement. However, for voids at the margins, the results were statistically insignificant.
这项体外研究评估了粉液型和胶囊型玻璃离子水门汀中的空隙情况。在上颌切牙的牙根表面制备了40个窝洞，并将其分为四组。第1组和第3组用玻璃离子水门汀液体（日本东京GC公司）处理窝洞，第2组和第4组用牙本质处理剂（日本东京GC公司）处理窝洞。第1组和第2组使用传统的粉液型玻璃离子水门汀（日本东京GC公司的GC Fuji II）作为修复材料。第3组和第4组使用胶囊型玻璃离子水门汀（日本东京GC公司的GC Fuji II）。将样本切片并在体视显微镜下观察，以检查水门汀内部以及水门汀与牙齿交界处是否存在空隙。使用单因素方差分析和Tukey事后检验对数据进行分析。就水门汀内部的空隙而言，与第1组和第2组相比，第4组显示出具有统计学意义的结果（P < 0.05）。然而，对于边缘处的空隙，结果无统计学意义。
