June 3, 2015
Title: Mineral Trioxide Aggregte versus formocresol in pulpotomized primary molars: a preliminary report
Authors: Eliezer Eidelman, DrOdont, MSD, et al.
Journal: Pediatric Dentistry, Volume 23 (1)
Purpose: The aim of this study was to compare the effect of mineral trioxide aggregate (MTA) to that of formocresol (FC) as pulp dressing agents in pulpotomized primary molars with carious pulp exposures.
Methods: Forty-five primary molars of 26 children were treated by a conventional pulpotomy technique. The teeth were randomly assigned to the MTA (experimental) or FC (control) group by a coin toss. Following removal of the coronal pulp and hemostasis, the pulp stumps were covered with an MTA paste in the experimental group. In the control group, FC was placed with a cotton pellet over the pulp stumps for 5 minutes and removed; the pulp stumps were then covered by zinc oxide-eugenol (ZOE) paste. The teeth of both groups were restored with stainless steel crowns. Eighteen children with 32 teeth arrived for clinical and radiographic follow-up evaluation ranging from 6 to 30 months.
Results: The follow-up evaluations revealed only one failure (internal resorption detected at a 17 month post-op evaluation) in a molar treated with formocresol. None of the MTA-treated teeth showed any clinical or radiographic pathology. Pulp canal obliteration was observed in 9 of 32 (28%) evaluated molars. This finding was detected in 2/15 teeth treated with FC (13%) and in 7/17 treated with MTA (41%).
Conclusions: MTA showed clinical and radiographic success as a dressing material following pulpotomy in primary teeth and seems to be a suitable replacement for formocresol in primary teeth.