Comparsion of cleaning capacity and instrumentation time among manual (Kfile), hybrid and rotary(Flexmaster) instrumentation techniques in primary molars

Aim of study: To compare the cleaning effectiveness of manual, rotary Flexmaster and hybrid (manual and Pro taper) instrumentation techniques in primary molar teeth. Material and Methods: Thirteen primary molars without external resorption were selected. After endodontic access, the teeth were injected with Indian-ink and divided into three groups.