Abstract Early loss of primary teeth leads to space loss for the permanent teeth to erupt.Natural tooth is considered as a space maintainer. The main loss of primary teeth are due to dental caries and traumatic injuries. In that dental caries serves as a main cause for loss of primary teeth. According to the Guidelines of the American Academy of Pediatric Dentistry, pulpotomy is suggested when both the coronal and radicular pulp is involved or involvement of pulpal necrosis with or without caries or pulpal hyperaemia. Nickeltitanium (NiTi) rotary instrumentation has made endodontic procedures in permanent teeth easier and faster than the manual instrumentation. Using of rotary instrument resulting in consistent and predictable root canal shaping. Practitioners must always have in mind that all file systems have both benefits and weaknesses, this is based on clinical experience of the practitioners must always bear in mind that all file systems have benefits and weaknesses. Ultimately, clinical experience of the practitioners, handling properties, usage safety, and case outcomes.