Department of Pediatric and Preventive Dentistry, Meghna Dental College, Nizamabad, Telangana, India.
Department of Pediatric and Preventive Dentistry, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India.
Indian J Dent Res. 2023 Jan-Mar;34(1):65-68. doi: 10.4103/ijdr.ijdr_66_22.
The success of pulpectomy depends on complete eradication of microbial load by cleaning and shaping the primary root canals that is difficult to achieve because of anatomical intricacy of primary pulp dentin complex. Numerous instruments were tried, however, they proved to be inadequate. Selfadjusting file (SAF) is a newer file system that facilitates less dentin removal with maximal cleansing of root canals.
To evaluate and compare the in vitro root canal cleaning efficacy with SAF, Protaper Universal, and Hand K-files in primary teeth.
Sixty extracted primary anterior teeth were randomly divided into three groups by lottery method. Access cavity was prepared, the canals were enlarged up to 20 K file, and an Indian ink was injected into each canal. Then the Group I (n = 20) was treated with SAF, Group II (n = 20) with Rotary Protaper Universal and Group III (n = 20) with Hand K-files and the root canal cleaning efficacy was evaluated based on the amount of Indian ink remaining in the canal walls under stereomicroscopy. Data were analyzed using Kruskal-Wallis one way ANOVA test and post hoc Tuckey test for intragroup and intergroup comparison, respectively.
A statistically highly significant difference was observed with SAF (mean = 1.5), Protaper (mean = 2.5), and Hand K-files (mean = 2.9). However, there was no significant difference in root canal cleaning efficacy with Protaper Universal and Hand K-files.
The SAFs had shown superior cleaning efficacy compared with rotary Protaper Universal and manual K files.
根管治疗的成功取决于通过清洁和成形主根管来彻底消除微生物负荷，但由于主牙髓牙本质复合体的解剖复杂性，这很难实现。虽然尝试了许多器械，但事实证明它们都不够理想。自调整锉（SAF）是一种较新的锉系统，它可以在最大程度地清洁根管的同时减少牙本质的去除。
评估和比较 SAF、Protaper Universal 和 Hand K 锉在儿童恒前牙中的根管清洁效果。
将 60 颗拔除的恒前牙通过抽签法随机分为三组。制备好开髓腔，将根管扩大至 20 K 锉，并将印度墨水注入每个根管。然后，将第 I 组（n = 20）用 SAF 处理，第 II 组（n = 20）用 Rotary Protaper Universal 处理，第 III 组（n = 20）用 Hand K 锉处理，然后在体视显微镜下观察根管壁上残留的印度墨水的量来评估根管清洁效果。使用 Kruskal-Wallis 单向方差分析检验和组内和组间的事后 Tuckey 检验分别对数据进行分析。
SAF（平均值 = 1.5）、Protaper（平均值 = 2.5）和 Hand K 锉（平均值 = 2.9）之间存在显著差异。然而，Protaper Universal 和 Hand K 锉在根管清洁效果方面没有显著差异。
SAF 与 Rotary Protaper Universal 和手动 K 锉相比，具有更好的清洁效果。
