Methods: This randomized crossover clinical trial was conducted on a group of 20 children aged 2 to 7 years with 3 similar teeth needing pulpotomy. Cases were randomly allocated into 3 groups for test and control. To enable same day treatment for all teeth, cases were selected from those scheduled to receive full mouth treatment under general anesthesia. Following conventional pulp amputation and hemostasis, group I received C.E.M and group II received low-level laser and C.E.M while group III received Formocresol and served as control. All teeth were restored using stainless steel crown. Patients were reviewed in 6, 12, 18, and 24 months follow-ups. Clinical and radiographic examination of the treated teeth was conducted to enable a comparison on the differences. Data were then calculated statistically using basic statistics.
Results: 18 patients completed 6, 12, 18, and 24 months follow-ups. No clinical or radiographic complications were observed in any of the cases or controlled teeth. However, close radiographic assessment showed a possible initial signs of P.C.O formation in only one case of the C.E.M group.
Conclusions: Findings of this investigation showed that C.E.M with LLLT could be used safely in pulpotomy procedure of primary molars. Longer follow-up periods are recommended to investigate their long-term effects.