Objectives: The aim of this study was to prospectively evaluate the clinical and radiographic success rates of electrosurgical technique as a method for treatment of pulpotomized primary molars. Methods: Altogether 35 primary molar teeth of 22 pediatric patients were randomly selected and treated in pediatric department of Shiraz dental school(Iran). All of them were treated in one treatment session,using electrosurgical unit(Coltene/Whaledent, Perfect Tissue Contouring System, TCS) as the method for performing pulpotomy procedure. After 6-12 month follow-up period, 32 of 35 treated teeth, again were examined clinically and radiographically. Three of the treated teeth were excluded from study due to changing their addresses and/or phone numbers. At the follow up appointments, any evidence of pain, fistula, swelling, abnormal mobility, furcation radiolucency and/or pathologic root resorption, were considered as criteria for failure of treatment. Results: After 6-12 month observation period, the clinical success rate was 100%, radiographic success rate was 84.3% and the overall success rate for this type of treatment was also 84.3%. Conclusions: Electrosurgical technique can be recommended as a suitable substitute for formocresol as a method for performing pulpotomy treatment in primary teeth which eliminates many concerns about the systemic effects of formocresol.