Objective: The aim of this study was to evaluate the clinical and radiographic success of nanosilver gel in paste form versus zinc oxide allium sativum oil paste as obturation materials following partial pulpectomy in primary molar. Subjects and methods: Forty eight primary molars of forty eight children aged between 4 and 8 years with pulpally involved primary molars requiring root canal procedures were equally divided to 3 groups and treated with nanosilver paste zinc oxide allium sativum oil paste and zinc oxide eugenol as obturation materials following partial pulpectomy procedure. The subjects were followed up clinically and radiographically at one week, 6 weeks and 3 months, respectively. Results: The results showed that the clinical and radiographic success rates of nanosilver gel in paste form and zinc oxide allium sativum oil paste over 3 months periods of observation were 100% whereas, for zinc oxide allium sativum oil and zinc oxide eugenol paste, the results were 87.5% and 81.25%, respectively.  Conclusion: On the basis of the overall success rates of all the three obturation material, following order of performance can be inferred clinical and radiographic success:- nanosilver paste > zinc oxide allium sativum paste > zinc oxide eugenol paste.