Aims: To systematically identify and evaluate the clinical and radiographic success of stainless steel crown and zirconia crown in primary mandibular molars. Materials & Methods: A comprehensive search was done using electronic databases such as PubMed Central, Cochrane Database of Systematic Reviews, Lilacs, Science Direct and SIGLE. The title scan was done to identify relevant articles, which were further evaluated for inclusion by reading the abstract. Bibliography of all the identified studies was scanned to include studies published outside the electronic database. All the studies comparing the clinical and radiographic evaluation of stainless steel crowns and zirconia crowns in primary molars were included. Results: Electronic database search identified 205 articles. Out of which, 187 were excluded after reading titles and removing duplication. The 8 studies were evaluated in detail after reading the abstract and full text. A final of 2 studies were included based on the inclusion criteria to meet the research question. Both the studies analysed only the clinical parameters of stainless steel crowns and zirconia crowns in primary molars whereas radiographic evaluation was not mentioned. Conclusion: Limited studies are available comparing the clinical and radiographic success of stainless steel crowns and zirconia crowns in primary mandibular molars. The current systematic review identifies the need for more high quality clinical trials evaluating the clinical and radiographic parameters of stainless steel crowns and zirconia crowns in primary mandibular molars.