Pulpectomy is one of the treatment options for deciduous teeth where the inflammation has reached the radicular pulp or teeth that have become non- vital.The function of a root canal filling is to obturate the canal and eliminate the portals of entry between the periodontium and the root canal.

The obturating material as well as obturation technique used that is capable of densely filling the entire root canal system and providing a fluid tight seal to prevent reinfection also significantly influences the success rate of the endodontic therapy.

Several methods have been used to deliver obturating materials into the root canals. Various studies have been conducted using different obturating techniques to fill the pulpectomized canals of primary teeth such as motor driven lentulospiral, hand held lentulospiral, reamer, local anesthetic syringe and a 27-gauge needle, NaviTip® system, endodontic pressure syringe, tuberculin syringe, absorbent paper point etc. .

There have been studies where NaviTip® has been proved to create less voids as compared to lentulospiral when used as an obturating technique in primary teeth . Navitip®, Navitip® (Double Sideport) have been used in endodontics for irrigation and has shown good results. It consists of a small cannula which navigates the most intricate canals and the double sideports horizontally express the material toward the canal walls and not to the apex. Navitip® (Double Sideport) has not yet been used for obturation.

The present study is thus proposed to evaluate and compare the filling quality of three delivery systems for root canal obturation in primary teeth, that is, Navitip®, Navitip® (Double Sideport) and rotary lentulospiral.