COMPARATIVE EVALUATION OF INSTRUMENTATION TIME, OBTURATION TIME, AND RADIOGRAPHIC QUALITY OF OBTURATION USING ROTARY FILES SYSTEMS VERSUS HAND K FILES FOR PRIMARY MOLAR PULPECTOMY – IN VIVO STUDY. (2023). Journal of Pharmaceutical Negative Results, 3028-3037. https://doi.org/10.47750/pnr.2023.14.02.356