Histologic comparison of formocresol, platelet rich fibrin, and hesperidin in pulpotomy: A randomized trial in dogs

Abstract

Aims: To histologically assess and compare formocresol (FC), platelet‑rich fibrin (PRF), and hesperidin (HPN) as pulpotomy agents in dogs. Materials and Methods: Pulpotomy was attempted from the buccal surface (class V) of 48 teeth in three mongrel dogs (Canis Lupus). Cavities were randomly allocated for three groups (n = 16) according to the pulpotomy agent used; (group I: FC (control), group II: PRF, and group III: HPN). All cavities were then sealed with zinc oxide eugenol followed by resin‑modified glass ionomer restoration. Two months later, dogs were euthanized; the specimens were obtained and prepared for histological assessment followed by statistical analysis. Results: HPN specimens showed the best dentin bridge formation and the least inflammatory signs and pulp disorganization. Followed without statistically significant difference by PRF (P ≥ 0.05). Both of HPN and PRF, however, showed a significant difference statistically (P ≤ 0.05) to FC that showed no dentin bridging with more pronounced inflammation, necrosis, and pulp disorganization. Conclusions: For pulpotomy, HPN and PRF seemed histologically to be good substitutes for FC in the dog model.