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Aim: The aim of this study was to evaluate the effect of various pulpotomy materials on the fracture resistance of pulpotomized primary second molars. Materials and Methods: Hundred extracted primary second molars were randomly divided into five groups as follows: Control group (had no treatment), Zinc oxide-eugenol group (pulpotomized with zinc oxide eugenol), ProRoot MTA group (pulpotomized with ProRoot MTA), RetroMTA group (pulpotomized with RetroMTA), and Biodentine group (pulpotomized with Biodentine). The pulpotomized teeth were restored with compomer resin. All samples were then subjected to fracture resistance test using a universal testing machine. Data were analyzed using one-way ANOVA followed by post hoc Tukey’s test. The level of significance was accepted at p<0.05. Results: Control group had the highest fracture resistance value (1191.57 ± 121.09 N) and Zinc oxide-eugenol group had the lowest fracture resistance value (510.87±135.00). There was statistically significant difference between fracture resistances of the groups (p<0.001). The difference between Zinc oxide-eugenol group and RetroMTA group; Zinc oxide-eugenol group and ProRoot MTA group; ProRoot MTA group and Biodentine group was not statistically significant (p>0.05). However, Biodentine group showed significantly higher fracture resistance as compared to Zinc oxide-eugenol group and RetroMTA group (p<0.05). Conclusions: The fracture resistance of primary second molars pulpotomized with ProRoot MTA and Biodentine was higher compared to the teeth pulpotomized with zinc oxide eugenol and RetroMTA.

FRACTURE RESISTANCE OF THE PRIMARY SECOND MOLARS PULPOTOMIZED BY VARIOUS AGENTS: AN IN-VITRO STUDY