Abstract:

Objective To compare the clinical efficacy of a new bioceramic material iRoot BP Plus and a traditional pulp capping material calcium hydroxide for indirect pulp capping of deep primary molar caries. Methods A total of 104 deep primary molar caries in children who visited the Department of Pediatric Stomatology of Jing’an District Dental Hospital from July 2020 to June 2022 were selected as the research objects. They were randomly divided into two groups, which were treated with chemically cured calcium hydroxide Dycal and iRoot BP Plus for indirect pulp capping respectively. The patients were followed up regularly at 6 months and 12 months after the operation for clinical efficacy and imaging detection. The clinical efficacy and reparative dentin thickness of the two groups were compared. Results After 12 months of treatment, the success rate of treatment in the iRoot BP Plus group(96.23%) was higher than that in the Dycal group(82.35%), and the difference was statistically significant(χ²=5.289, P=0.021). The increase in reparative dentin thickness in the iRoot BP Plus group ((0.161±0.017), mm) was greater than that in the Dycal group ((0.143±0.023), mm), and the difference was not statistically significant(P>0.05). Conclusion The application of iRoot BP Plus in the indirect pulp capping of deep primary molar caries has good expectations, which can promote the formation of reparative dentin to a certain extent and improve the long-term success rate of the treatment fordeep primary molar caries.

Key words: iRoot BP Plus, Dycal, deep caries of primary teeth, indirect pulp therapy