Background: Pulpectomy is a root canal procedure for pulp tissue that is irreversibly infected or necrotic. The present study compared the efficacy of different obturating methods used in primary teeth. Materials & Methods: 50 mandibular primary teeth requiring pulpectomy of both genders were divided into 2 groups of 25 each. A standardized pulpectomy procedure was performed in all teeth. In group I, teeth were obturated with a disposable syringe (Dispovan) and in group II using lentulo spiral (Mani). Results: Level of obturation was less or equal to half the root length seen in 6 in group I and 3 in group II, more than half the root length 7 in group I and 13 in group II, optimal filing 9 in group I and 5 in group II and filling extruding from the apex 3 in group I and 4 in group II. There were 0 void seen in 15 in group I and 9 in group II and 1 voids seen 10 in group I and 16 in group II teeth. The difference was significant (P< 0.05). Conclusion: Both techniques were comparable in terms of obturation in primary molars. Key words: disposable syringe, lentulo spiral, obturation