Sruthi S, Jeevanandan Ganesh, Govindaraju Lavanya, Subramanian Emg
Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
Dent Res J (Isfahan). 2021 Sep 25;18:76. doi: 10.4103/1735-3327.326649. eCollection 2021.
Pulpectomy is the treatment of choice for severely infected primary molars. The aim of the study is to evaluate the instrumentation time and obturation quality using Kedo SG blue, Kedo SH, and reciprocating hand K files in primary mandibular molars. To evaluate the instrumentation time and obturation quality using Kedo-SG blue, Kedo-SH, and reciprocating hand K-files in primary mandibular molars.
A double-blinded randomized controlled trial was conducted on 45 mandibular molars and were randomly assigned to three experimental groups ( = 15). Group I was instrumented using Kedo-SG blue pediatric rotary files, Group II with Kedo-SH pediatric hand files, and Group III with reciprocating hand K-files. Standardized digital radiographs were taken before and after root canal instrumentation. Root canal preparation time was also recorded. Statistical analysis of the obtained data was done using SPSS software version 17.0. An intergroup comparison of the instrumentation time and the quality of obturation were done using ANOVA and Chi-square test with the level of significance set at 5%. < 0.05 was considered statistically significant.
No significant differences were noted with regard to the quality of obturation between the three groups ( < 0.14). However, a statistically significant difference was noted in the instrumentation time between the three groups ( = 0.000). Kedo-SG blue rotary file had significantly lesser instrumentation time when compared to that of Kedo-SH hand files and reciprocating hand K-files.
On comparative evaluation,Kedo-SG blue pediatric rotary file showed a marked reduction in instrumentation time, followed by Kedo-SH pediatric hand files and reciprocating hand K-files.
牙髓摘除术是重度感染的乳磨牙的首选治疗方法。本研究的目的是评估使用Kedo SG蓝色锉、Kedo SH锉和往复式手动K锉对下颌乳磨牙进行根管预备的时间和充填质量。
对45颗下颌乳磨牙进行双盲随机对照试验，并随机分为三个试验组（每组 = 15）。第一组使用Kedo - SG蓝色儿童旋转锉进行根管预备，第二组使用Kedo - SH儿童手动锉，第三组使用往复式手动K锉。在根管预备前后拍摄标准化数字X线片。同时记录根管预备时间。使用SPSS 17.0软件对所得数据进行统计分析。采用方差分析和卡方检验对根管预备时间和充填质量进行组间比较，显著性水平设定为5%。P < 0.05被认为具有统计学意义。
三组之间在充填质量方面未观察到显著差异（P < 0.14）。然而，三组在根管预备时间上存在统计学显著差异（P = 0.000）。与Kedo - SH手动锉和往复式手动K锉相比，Kedo - SG蓝色旋转锉的根管预备时间明显更短。
通过比较评估，Kedo - SG蓝色儿童旋转锉的根管预备时间显著缩短，其次是Kedo - SH儿童手动锉和往复式手动K锉。
