Ayna B, Celenk S, Atas O, Tümen E C, Uysal E, Toptanci I R
Department of Pedodontics, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey.
Department of Pedodontics, Faculty of Dentistry, Firat University, Elazig, Turkey.
Niger J Clin Pract. 2018 Aug;21(8):1034-1037. doi: 10.4103/njcp.njcp_143_17.
Using AutoCAD, we examined the microleakage of dye at the edges of primary-teeth restorations using three glass ionomer-based restorative materials.
A total of 30 extracted noncarious primary molars were used. Class V cavities were adjusted on the buccal surfaces. The teeth were randomly divided into three groups of 10 teeth each as follows: Group A (Ketac Molar), Group B (Photac Fil), and Group C (Dyract XP). All specimens were stored for 24 h at 37°C in distilled water. The teeth were thermocycled 1000 times between 5°C ± 2°C and 55°C ± 2°C before immersion in 0.5% basic fuchsin for 24 h. Two mesiodistal cuts of each tooth were photographed under a stereomicroscope equipped with a digital camera. The dye-infiltrated surface area was measured. Statistical evaluations were performed by the Kolmogorov-Smirnov test, Levene test, one-way analysis of variance, and Tukey's honestly significant difference test.
The mean microleakage ratio differed significantly among the groups (P < 0.05). Group C exhibited a significantly smaller area (P < 0.001) than the other groups. Group A had a nonsignificantly higher mean microleakage value than Group B (P > 0.05).
Polyacid-modified composite resin may be a useful restorative material in primary teeth in terms of minimizing microleakage.
我们使用AutoCAD，采用三种玻璃离子基修复材料，检测乳磨牙修复边缘的染料微渗漏情况。
总共使用30颗拔除的无龋乳磨牙。在颊面制备V类洞。将牙齿随机分为三组，每组10颗牙，如下：A组（Ketac Molar）、B组（Photac Fil）和C组（Dyract XP）。所有标本在37°C蒸馏水中储存24小时。在浸入0.5%碱性品红24小时之前，将牙齿在5°C±2°C和55°C±2°C之间进行1000次热循环。在配备数码相机的体视显微镜下拍摄每颗牙齿的两个近远中切面照片。测量染料渗入的表面积。采用Kolmogorov-Smirnov检验、Levene检验、单因素方差分析和Tukey真实显著性差异检验进行统计学评估。
各组间平均微渗漏率差异有统计学意义（P<0.05）。C组的面积显著小于其他组（P<0.001）。A组的平均微渗漏值略高于B组，但差异无统计学意义（P>0.05）。
就最小化微渗漏而言，聚酸改性复合树脂可能是一种用于乳牙的有用修复材料。
