The objective was to assess the Quality of Obturation in Decayed primary molars using 3 different obturating materials namely Endoflas, Zinc oxide eugenol and Metapex MATERIALS AND METHODS: 45 infectious Deciduous mandibular posterior teeth which requires pulpectomy were separated into 3 subgroups ( 15 molars in each group) depending on the chosen obturation material : Group A (ZOE), Group B (Metapex), and Group C (Endoflas). Postoperative period, all the molars were examined clinically and radiographically by a different researcher who was unaware of the restorative material used on each molar. Mann-Whitney test, Wilcoxon Signed-Rank test, Kruskal-Wallis test were subjected into statistical analysis RESULTS : During Evaluation of Obturation Standards, 78% of primary deciduous molars had the ideal filling, while the other cases had underfilling (9%) and overfilling (13%). In cases where some root resorption had occurred, the prevalence of overfilling was greater. CONCLUSION: ZOE had the lowest success rate among the obturating materials, Metapex had the highest probability of success. Endoflas has a lesser amount of degradation of the material both inside and outside the pulpal space when assessed using Coll and Sadrian Method