Seema Thakur, Ahammed Haseeb, Parul Singhal, Cheranjeevi Jayam
Department of Pedodontics and Preventive Dentistry, HP Government Dental College and Hospital, Shimla, Himachal Pradesh, India.
Int J Clin Pediatr Dent. 2020 Jul-Aug;13(4):332-336. doi: 10.5005/jp-journals-10005-1787.
Various rotary endodontic instruments were used and studied for the root canal preparation of the primary teeth. Recently, a new venture evolved in the field of pediatric endodontic, which was Kedo S rotary files. These are the files designed exclusively for root canal preparation of the primary teeth.
The study aimed to comparatively evaluate the dentin removal and taper of root canal preparation of Hand K files, Rotary Prosper files, and Rotary Kedo S files using cone-beam computed tomography (CBCT) and instrumentation time using stopwatch in primary molars.
Sixty-three root canals of maxillary and mandibular primary molars were included in the study. The root canals were randomly assigned to Hand K file (group I), Rotary ProTaper file (group II), and Rotary Kedo S file (group III). Dentin removal and taper of the root canal preparations were evaluated by using CBCT.
All the three file systems do not show any statistical significant differences at middle third and apical third but at coronal third, Kedo S removed significantly less amount of dentin as compared to the Hand K file. Taper of the preparations did not show significant differences, even though the rotary files showed good taper in maximum number of root canals.
Although not much statistical significant differences were observed in our study, the rotary file system performed slightly better in root canal preparations in primary molars.
Seema T, Ahammed H, Parul S, . Comparative Evaluation of Dentin Removal and Taper of Root Canal Preparation of Hand K File, ProTaper Rotary File, and Kedo S Rotary File in Primary Molars Using Cone-beam Computed Tomography. Int J Clin Pediatr Dent 2020;13(4):332-336.
使用了各种旋转式牙髓治疗器械并对乳牙根充进行了研究。最近,儿童牙髓治疗领域出现了一项新进展,即Kedo S旋转锉。这些锉是专门为乳牙根充设计的。
本研究旨在使用锥形束计算机断层扫描(CBCT)比较评估手动K锉、旋转式普瑞美锉和旋转式Kedo S锉在乳磨牙根管预备中的牙本质去除量和锥度,并使用秒表记录预备时间。
本研究纳入了63个上颌和下颌乳磨牙的根管。这些根管被随机分为手动K锉组(I组)、旋转式ProTaper锉组(II组)和旋转式Kedo S锉组(III组)。使用CBCT评估根管预备的牙本质去除量和锥度。
所有三种锉系统在根管中1/3和根尖1/3处均未显示出统计学显著差异,但在冠1/3处,与手动K锉相比,Kedo S锉去除的牙本质量显著更少。尽管旋转锉在大多数根管中显示出良好的锥度,但预备的锥度并未显示出显著差异。
尽管在我们的研究中未观察到太多统计学显著差异,但旋转锉系统在乳磨牙根管预备中表现略好。
Seema T, Ahammed H, Parul S, . 使用锥形束计算机断层扫描对乳磨牙中手动K锉、ProTaper旋转锉和Kedo S旋转锉根管预备的牙本质去除量和锥度的比较评估。《国际临床儿科牙科学杂志》2020;13(4):332 - 336。