Introduction: There is insufficient evidence on the outcome of pulpotomy in carious exposed young permanent molars with the newer biomaterials. This study aimed to compare the outcomes of mineral trioxide aggregate (MTA) and Biodentine as pulpotomy materials in cariously exposed vital immature mandibular first permanent molars.
Methods: Sixty immature first mandibular permanent molars, with carious exposure were randomly assigned to MTA or Biodentine group in split-mouth design. After the amputation of the coronal pulp, the pulp stumps were covered with one of the study materials and coronal restorations placed. Blinded clinical and radiographic evaluations were performed at baseline, 6, 12 and 18 month and comparisons both between and within the two groups were made.
Results: A high success was observed in both groups for all outcome measures for clinical success, with no significant difference between the two groups. The mean survival time for Biodentine and MTA groups was (17.8 and 18 months) with the 95% Confidence Interval (17.4 – 18.2) and (18.0– 18.0) months respectively. Similarly, there were no significant differences between Biodentine and MTA groups for radiographic success (P<0.001) with an increase in root length and increasing apical closure observed in both groups.
Conclusions: Both materials were equally effective in the treatment of cariously exposed vital immature mandibular first permanent molars.