Comparative Evaluation of Effect of Iranian MTA and ProRoot after Sealing Furcal Perforation of Dog's Teeth by Histology

In root canal therapy, perforation of furca, when preparing access cavity, may happen, which can affect tooth prognosis. The kind of material is important in control of repair of periodontal tissues. The aim of this study was evaluation of the effect of pro-root and Iranian MTA in repair of periodontal tissue after scaling furcal perforation of dog's teeth by histology. In this experimental study, 36 teeth of dogs were used, access cavity was prepared and root canal therapy was performed. Then the furca was perforated and randomly sealed by pro-root and Iranian MTA. 2 dogs after one month and 2 dogs after two months were sacrificed by vital perfusion. After laboratory procedures, decalcification and H&E staining, the samples were observed by pathologist. Mann-Whitney test was used for statistical analysis. There was no significant difference between the two materials after one and two months but in the same condition, pro-root may reveal more repair. Because there was no significant difference between pro-root and Iranian MTA after one and two months, and the Root MTA is cheep and accessible, Iranian MTA can be used for sealing furcal perforation as an alternative material.