Evaluation of the clinical efficiency of rotary and manual files for root canal instrumentation in primary teeth pulpectomies: A comparative randomized clinical trial

Aim: To evaluate and compare the instrumentation time, obturation quality of obturation, clinical radiological success pulpectomized teethfollowing root canal preparation primary molars with rotary manual file system. Methods: A total 150 requiring pulpectomy were selected from children aged four to seven years. These teeth divided into three groups 50 each. In Groups 1, 2, 3, cleaning shaping carried out Kedo-S pediatric rotaryfiles, HERO Shaper files, NiTi K-files, respectively. Obturation was zinc oxide eugenol cement an engine-driven Lentulo spiral. The times recorded. radiographic assessment thequality filling immediately after obturation. Finally, clinically radiographically evaluated over a two-year period. Results: mean for 3 14.56 ± 2.89 min, 17.93 3.51 29.00 2.08 8.11 1.7 7.93 1.3 9.64 17.61 difference in not statistically significant instrumented pediatricand systems (p = 0.16). However, this when compared between molar files <0.001). At two years, rate 100% rates 95.3%, 97.9%, 89.5% Conclusions: took significantly less time than files. There no differences or