Prasad P Krishna, Sankhala Abhishek, Tiwari Aastha, Parakh Shrikant, Madan Gagan R, Singh Ankita
Department of Conservative Dentistry and Endodontics, Chhattisgarh Dental College and Research Institute, Rajnandgaon, Chhattisgarh, India.
J Conserv Dent. 2018 Mar-Apr;21(2):221-225. doi: 10.4103/JCD.JCD_406_16.
The aim of this study is to evaluate the effect of ultrasonic activation on the penetration depth of AH Plus, Acroseal, and EndoREZ sealers into dentinal tubules using Confocal laser microscopy.
A total of 60 single-rooted teeth were prepared and divided into three groups on the basis of the type of sealer used (G1: AH Plus, G2: Acroseal and G3:EndoREZ). Each group was further subdivided into two equal subgroups on the basis of ultrasonic activation of sealers and nonactivation. Teeth were obturated and coronally sealed with GIC. Horizontal sections at 2 mm, 4 mm, and 6 mm from the apex were obtained, and the depth of sealer penetration into the dentinal tubules was measured using confocal laser scanning microscopy. Statistical analysis was performed using Students unpaired -test, ANOVA, and Tukey's multiple comparison test.
Within the three groups, ultrasonically activated subgroups showed significantly ( < 0.05) higher depth of sealer penetration. Among the groups, Group 1 showed significantly ( < 0.05) higher depth of sealer penetration than Group 2 and Group 3 while the difference between Group 2 and Group 3 was not significant ( > 0.05).
The use of ultrasonic activation with AH Plus sealer showed better results.
本研究旨在使用共聚焦激光显微镜评估超声激活对AH Plus、Acroseal和EndoREZ封闭剂渗入牙本质小管深度的影响。
共制备60颗单根牙,并根据所用封闭剂的类型分为三组(G1:AH Plus,G2:Acroseal,G3:EndoREZ)。每组再根据封闭剂是否超声激活进一步分为两个相等的亚组。用GIC对牙齿进行充填和冠部封闭。从根尖2mm、4mm和6mm处获取水平切片,使用共聚焦激光扫描显微镜测量封闭剂渗入牙本质小管的深度。采用学生非配对t检验、方差分析和Tukey多重比较检验进行统计学分析。
在三组中,超声激活的亚组封闭剂渗入深度显著更高(P<0.05)。在各组之间,第1组封闭剂渗入深度显著高于第2组和第3组(P<0.05),而第2组和第3组之间的差异不显著(P>0.05)。
AH Plus封闭剂联合使用超声激活显示出更好的效果。