Vishwanathaiah Satish
Division of Pediatric Dentistry, Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia.
Front Dent Med. 2024 Dec 24;5:1489074. doi: 10.3389/fdmed.2024.1489074. eCollection 2024.
To compare and evaluate the efficacy of canal preparation and volumetric filling of primary molars instrumented by conventional hand K-file, ProAF baby rotary file and Kedo-S square file using cone beam computed tomography.
Thirty freshly extracted human primary second molars were randomly divided into 3 groups of 10 teeth each. After access opening and working length determination, preoperative volume analysis was done using cone beam computed tomography (CBCT). The canals were then instrumented by either hand K-files, Pro AF Baby rotary files and Kedo-S square rotary files. Post operative volume analysis was performed using CBCT. All the canals were obturated using Metapex and scanned again using CBCT. Mean values of the pre- and post-operative canal volumes were analyzed using one-way ANOVA. Inter- and intra- group volumetric changes were analyzed statistically by test.
The mean difference in volume after canal preparation and obturation was the highest in the hand K-file group, followed by Pro AF Baby Gold group and the least in the Kedo-S square group. Inter and intra group comparison showed statistically significant differences for all the file groups used.
Kedo- S square showed the least difference in preparation volume and better obturating volume compared to Pro AF baby gold file systems.
使用锥形束计算机断层扫描（CBCT）比较和评估传统手动K锉、ProAF儿童旋转锉和Kedo-S方形锉对乳磨牙进行根管预备和容积充填的效果。
将30颗新鲜拔除的人类乳磨牙随机分为3组，每组10颗牙。开髓和确定工作长度后，使用锥形束计算机断层扫描（CBCT）进行术前容积分析。然后分别用手动K锉、Pro AF儿童旋转锉和Kedo-S方形旋转锉对根管进行预备。术后使用CBCT进行容积分析。所有根管均用Metapex充填，再次使用CBCT扫描。采用单因素方差分析对术前和术后根管容积的平均值进行分析。组间和组内的容积变化采用检验进行统计学分析。
根管预备和充填后容积的平均差值在手动K锉组最高，其次是Pro AF儿童金锉组，Kedo-S方形锉组最小。所有使用的锉组在组间和组内比较均显示出统计学上的显著差异。
与Pro AF儿童金锉系统相比，Kedo-S方形锉在预备容积上差异最小，充填容积更好。
