Topçuoğlu Hüseyin Sinan, Kesim Bertan, Düzgün Salih, Tuncay Öznur, Demirbuga Sezer, Topçuoğlu Gamze
Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
Department of Restorative Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
Int J Paediatr Dent. 2015 Jul;25(4):248-54. doi: 10.1111/ipd.12137. Epub 2014 Sep 29.
To evaluate the fracture resistance of simulated immature teeth that had been backfilled using different materials after using Biodentine as the apical plug material.
Seventy-five single-rooted teeth were divided into five groups (n = 15). The 15 teeth in group 1 served as a negative control group and received no treatment. The remaining 60 teeth were instrumented to a #6 Peeso reamer to obtain a standard internal diameter of 1.5 mm. The apical 4 mm of 60 teeth was filled with Biodentine. The backfilling was then performed on each group as follows: group 2--no backfilling (positive control), group 3--gutta-percha, group 4--fiber post, and group 5--Biodentine. Specimens were then subjected to fracture testing. The force required to fracture each specimen was recorded, and the data were statistically analyzed.
The mean fracture values of groups 1 and 4 were significantly higher than groups 2, 3, and 5 (P < 0.05). The values of groups 3 and 5 were significantly higher than group 2 (P < 0.05).
The backfilling with fiber post after an apical Biodentine plug provided the highest fracture resistance among all experimental groups.
评估以BioDentine作为根尖充填材料后，使用不同材料进行根充的模拟未成熟恒牙的抗折性能。
将75颗单根牙分为五组（n = 15）。第1组的15颗牙作为阴性对照组，不进行任何处理。其余60颗牙用#6 Peeso扩孔钻预备，使其获得1.5 mm的标准内径。60颗牙的根尖4 mm用BioDentine充填。然后对每组进行如下根充：第2组——不进行根充（阳性对照），第3组——牙胶，第4组——纤维桩，第5组——BioDentine。随后对样本进行抗折测试。记录使每个样本折断所需的力，并对数据进行统计学分析。
第1组和第4组的平均抗折值显著高于第2、3和5组（P < 0.05）。第3组和第5组的值显著高于第2组（P < 0.05）。
在根尖使用BioDentine充填后再用纤维桩进行根充，在所有实验组中提供了最高的抗折性能。
