Abstract

Calcium silicate cements have been widely used for pulpotomies in immature permanent teeth with complicated crown fractures due to their superior properties. However, few studies have evaluated the long-term outcomes of white mineral trioxide aggregate (WMTA) and iRoot BP Plus for partial pulpotomies. The aim of this study was to investigate the long-term clinical and radiographic outcomes of WMTA and iRoot BP Plus for partial pulpotomies in immature permanent incisors with complicated crown fractures. Children who had partial pulpotomies of immature permanent incisors with complicated crown fractures using WMTA or iRoot BP Plus as capping agents were enrolled. Eighty immature permanent incisors in 68 children (aged 8-13 years) were included. They were divided into two groups (WMTA and iRoot BP Plus) according to the capping agents. Clinical and radiographic information was collected during a 5-year follow-up period. Study data were analyzed using Chi-square tests or Fisher exact tests. The clinical and radiographic success rates in the WMTA (n=36) and iRoot BP Plus groups (n=44) were 94.4% versus 97.7% and 88.9% versus 97.7%, respectively (both p < .05). The average observation period was 74.5 ± 13.2months and 61.9 ± 1.6months in the WMTA and iRoot BP Plus groups, respectively (p < .01). Five cases presented with periapical radiolucencies. The WMTA group had four cases of pulp canal calcification (11.1%), while the iRoot BP Plus group had two cases (4.6%). There was crown discolouration in all cases in the WMTA group, but none in the iRoot BP Plus group. Both WMTA and iRoot BP Plus had favorable outcomes in promoting physiological development and maintaining the basic functions of immature permanent incisors with complicated crown fractures. As a partial pulpotomy material, iRoot BP Plus may be more suitable for the esthetic zone than WMTA.

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