Jeevanandan Ganesh, Ravindran Vignesh, Subramanian Erulappan Mg, Kumar Aravind S
Department of Pediatric and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India.
Department of Orthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India.
Int J Clin Pediatr Dent. 2020 Jan-Feb;13(1):21-26. doi: 10.5005/jp-journals-10005-1709.
The purpose of this randomized clinical trial was to evaluate the intensity and duration of postoperative pain after pulpectomy of primary teeth using three preparation techniques.
A total of 60 patients were randomly allocated to three groups of 20 patients each, according to the root canal instrumentation techniques used. In group I, the teeth were prepared using manual NiTi K flex files till size 35. In group II, the teeth were prepared using NiTi K flex files till size 35 in reciprocating motion. In group III, the teeth were prepared using Kedo-S pediatric rotary files. After root canal preparation, the canals were obturated with endoflas paste and were restored permanently with composite filling material. The intensity and duration of postoperative pain were evaluated after 6, 12, 24, 48, and 72 hours, using a four-point pain-intensity scale.
There was a statistically significant difference among the groups, wherein the postoperative pain was more in NiTi K flex files used in reciprocating motion followed by manual NiTi K flex files and Kedo-S pediatric rotary files.
Postoperative pain was more with NiTi K flex files in reciprocating motion and was less with Kedo-S rotary files after root canal preparation in primary maxillary molars.
Jeevanandan G, Ravindran V, Subramanian EMG, Postoperative Pain with Hand, Reciprocating, and Rotary Instrumentation Techniques after Root Canal Preparation in Primary Molars: A Randomized Clinical Trial. Int J Clin Pediatr Dent 2020;13(1):21-26.
本随机临床试验的目的是使用三种预备技术评估乳牙牙髓摘除术后疼痛的强度和持续时间。
根据所使用的根管预备技术，将60例患者随机分为三组，每组20例。第一组，使用手动镍钛Kflex锉预备牙齿至35号。第二组，使用镍钛Kflex锉以往复运动方式预备牙齿至35号。第三组，使用Kedo-S儿童旋转锉预备牙齿。根管预备后，根管使用Endoflas糊剂充填，并用复合充填材料永久修复。使用四点疼痛强度量表在术后6、12、24、48和72小时评估术后疼痛的强度和持续时间。
各组之间存在统计学上的显著差异，其中，以往复运动方式使用镍钛Kflex锉术后疼痛更明显，其次是手动镍钛Kflex锉和Kedo-S儿童旋转锉。
在上颌乳磨牙根管预备后，以往复运动方式使用镍钛Kflex锉术后疼痛更明显，而使用Kedo-S旋转锉术后疼痛较轻。
Jeevanandan G, Ravindran V, Subramanian EMG, 乳牙根管预备后手用、往复运动和旋转器械技术的术后疼痛：一项随机临床试验。《国际临床儿科牙科学杂志》2020；13(1)：21-26。
