Background: This review and meta-analysis investigates the outcome of direct pulp capping in teeth diagnosed as irreversible pulpitis.
Material and methods: This systematic review includes experimental and descriptive clinical studies according to the PRISMA criteria, using PubMed and Scopus as database. We have included studies that performed direct pulp capping on human permanent teeth previously diagnosed with irreversible pulpitis and that carried out a subsequent follow-up. The outcome of interest was the clinical success of direct pulp capping.
Results: A total of four studies met the inclusion criteria for this review, however only three of these could be included in the meta-analysis. These three studies represent a total sample of 62 teeth with irreversible pulpitis treated with direct pulp capping that showed an overall success rate of 0.953 (CI=0.900-1.005; p<0.001; I²=0). Additionally, the success rates of vital pulp therapies were compared, all of them being greater than 75%; and the success rates of the materials used were analyzed, giving values above 80% in all cases. The risk of bias of the included articles was established using the ROBINS-I tool, showing that two of the articles had a moderate risk of bias and the remaining two had a very high risk of bias.
Conclusions: Based on the results of this review, direct pulp capping should be clinically included as a successful technique for the treatment of irreversible pulpitis. However, a larger number of studies with more rigorous methodologies are necessary to confirm the efficacy of this technique. Key words:Irreversible pulpitis, direct pulp capping (DPC), vital pulp therapy (VPT), indirect pulp capping (IPC), partial pulpotomy, total pulpotomy.
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