Effect of Adaptive, Rotary, and Manual Root Canal Instrumentation in Primary Molars: A Triple-Armed, Randomized Controlled Clinical Trial

This clinical trial focused on collating the instrumentation time and quality of root canal obturation in primary molars treated with three techniques: adaptive, rotary, manual. A triple-armed, randomized controlled was performed 75 requiring pulpectomy treatment, divided into groups (n = 25 per group). The teeth Group 1 were instrumented an adaptive technique (XP-endo Shaper, FKG Dentaire, La Chaux-de-Fonds, Switzerland), 2 pediatric rotary files (Kedo-S; D1 E1), 3 a manual (hand K-files). apical size final maintained at #30 for all groups. Instrumentation grade evaluated. duration recorded, employing digital stopwatch from insertion first file until completion irrigation. Obturation assessed using radiographs. criteria taken as reference were: optimal (1 mm short apex), underfilled (2 or overfilled (beyond apex). use associated lowest (p < 0.0001) when used instrumenting highest filling application new concept favorable technique, considering significant reduction better obturation.