Unilateral Single-Rooted Primary First Molars in two siblings: A Case Report

Objective(s): Single-rooted primary molar in considered to have a genetic origin. Knowledge of the root canal morphology is essential to achieve optimal pulp treatment in primary teeth. The occurrence of single-rooted and single-canal molars in primary dentition is extremely rare. Case: This study presents unilateral mandibular primary first molars with a single pyramidal root in two sisters, discovered in pre-operative radiographs. Pulpotomy and stainless steel crown treatment was performed for one of them that had deep caries involving the pulp. The treatment was considered successful at the 6-month follow-up. Conclusion: Obtaining radiographs prior to the treatment is essential to diagnose and properly manage single rooted molars.