Pediatric Dentistry, Preventive Dentistry Department, Faculty of Dentistry, Oral Health, Tanta University, Tanta, Egypt.
Oral Medicine, Periodontology, Oral Diagnosis, and Radiology Department, Faculty of Dentistry, Tanta University, Tanta, Egypt.
Clin Oral Investig. 2024 May 27;28(6):340. doi: 10.1007/s00784-024-05726-y.
Pediatric rotary file systems were developed to solve manual file limitations. With many systems available, it may be tricky to select the most appropriate one.
to assess & compare Kedo-S Square, Fanta-AF™-Baby rotary files with manual K-file concerning removed dentin amount, canal transportation, centric ability & root canal taper using CBCT in primary anterior teeth.
Extracted Seventy-five upper primary anterior teeth with intact 2/3 root length were collected and divided into three groups based on root canal instrumentation, group-I: prepared using K-file, group-II: prepared using Kedo-S Square, and group-III: prepared using Fanta AF™ Baby file. The teeth were imaged with CBCT before & following canal instrumentation. Then, the removed dentin amount was calculated at each root-canal level. The Kruskal-Wallis test was utilized to statistically analyze study data.
The difference among the three groups was highly statistically significant at cervical & apical thirds concerning dentin thickness changes on both mesial & distal sides following canal preparation with the least removed dentin in the Kedo-S Square group(P < 0.0001). Regarding transportation & centering ability, a non-significant difference between the three groups was found. 80% of the Fanta AF™ Baby group had good-tapered preparation compared to the Kedo-S Square (72%) and K-file (40%) groups(P < 0.05).
Kedo-S Square was preferable to Fanta-AF-Baby & manual K-files in primary root canal preparation.
儿科旋转锉系统的开发是为了解决手动锉的局限性。有许多系统可供选择，因此选择最合适的系统可能有些棘手。
使用 CBCT 评估和比较 Kedo-S Square、Fanta-AF™-Baby 旋转锉和手动 K 锉在儿童前牙中根管预备时的牙本质去除量、根管偏移、中心定位能力和根管锥度。
采集 75 颗完整的 2/3 根长的上前牙髓腔前牙，根据根管预备方法分为三组，组 I：使用 K 锉预备，组 II：使用 Kedo-S Square 预备，组 III：使用 Fanta AF™ Baby 锉预备。牙齿在根管预备前后均用 CBCT 成像。然后，计算每个根管水平的牙本质去除量。使用 Kruskal-Wallis 检验对研究数据进行统计学分析。
在根管预备后，颈、根尖 1/3 处，近、远中面的牙本质厚度变化，三组间差异有统计学意义（P < 0.0001），Kedo-S Square 组牙本质去除量最少。关于偏移和中心定位能力，三组间无显著差异。与 Kedo-S Square（72%）和手动 K 锉（40%）组相比，80%的 Fanta AF™ Baby 组有良好的锥度制备（P < 0.05）。
在儿童根管预备中，Kedo-S Square 优于 Fanta-AF-Baby 和手动 K 锉。
