Department of Paediatric and Preventive Dentistry, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India.
Department of Oral Medicine and Radiology, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India.
Int J Paediatr Dent. 2024 Jul;34(4):474-484. doi: 10.1111/ipd.13148. Epub 2023 Dec 20.
Paediatric rotary file systems have recently been developed for primary teeth use.
To study the cleaning efficacies of two paediatric rotary endodontic files, the Prime Pedo, and the Kedo-SG Blue against the standard H files.
This in vitro study included 54 freshly extracted primary molars, which were randomised into three groups (n = 18 each) and were prepared using either Kedo-SG Blue, Prime Pedo or hand H files after injecting methylene blue dye into the canals. Pre- and post-operative cone beam computerised tomography (CBCT) was performed to assess change in root canal volumes. Methylene blue dye removal from canals was assessed using stereomicroscopy, and canal cleanliness was examined by scanning electron microscopy (SEM).
Both Prime Pedo and Kedo-SG Blue files reduced significantly less dentine when compared with conventional hand filing with Prime Pedo removing the least amount of dentine. No significant difference was found in median SEM scores among the groups in the cervical, middle and apical thirds of the roots. Stereomicroscopic assessment of root canal cleanliness using dye removal technique shows a statistically significant difference existing between Kedo-SG Blue and hand H files groups.
Prime Pedo removed the least amount of dentine. Kedo-SG Blue performed significantly better than conventional hand filing with H files when the root canal cleanliness was assessed.
儿科旋转锉系统最近已被开发用于乳牙使用。
研究两种儿科旋转牙髓锉，即 Prime Pedo 和 Kedo-SG Blue，与标准 H 锉相比的清洁效果。
本体外研究纳入 54 颗新鲜拔出的乳磨牙，随机分为三组（每组 n=18），在向根管内注射亚甲蓝染料后，使用 Kedo-SG Blue、Prime Pedo 或手动 H 锉进行预备。在术前和术后进行锥形束计算机断层扫描（CBCT）以评估根管容积的变化。使用体视显微镜评估根管内亚甲蓝染料的去除情况，并通过扫描电子显微镜（SEM）检查根管清洁度。
与传统的手动锉相比，Prime Pedo 和 Kedo-SG Blue 锉在去除牙本质方面均显著减少，而 Prime Pedo 锉去除的牙本质最少。在根的颈、中、根尖三分之一处，各组的 SEM 评分中位数无显著差异。使用染料去除技术评估根管清洁度的体视显微镜评估显示，Kedo-SG Blue 与手动 H 锉组之间存在统计学显著差异。
Prime Pedo 去除的牙本质最少。在评估根管清洁度时，Kedo-SG Blue 比传统的手动 H 锉效果更好。
