ArticleJournal of dental sciences2026
Hard tissue barrier detection in permanent mandibular molars that have undergone direct pulp capping and partial pulpotomy: A retrospective cohort study.
Article in Journal of dental sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Background/purpose: The presence of a hard tissue barrier (HTB) is commonly considered as a reliable indicator of a successful vital pulp therapy (VPT). This study therefore aimed to evaluate the probability of HTB detection over time, identify factors affecting HTB detection, and compare the mean time of HTB detection across subgroups. Materials and methods: This retrospective cohort study included permanent mandibular molars that had undergone VPT. The examiners detected the HTB by comparing the follow-up with the immediate postoperative bitewing radiographs. A flexible parametric survival analysis was conducted to assess the probability of HTB detection over time and its associated factors. The restricted mean survival time was used to compare the mean time of HTB detection across subgroups. Results: This study included 149 radiographs of 70 teeth from 67 patients. The mean follow-up was 20.7 ± 14.7 months. The probability of HTB detection increased over time, reaching 0.75 (95 % confidence interval: 0.61-0.87) at 48 months, and was significantly greater in teeth treated with partial pulpotomy (PP) or with pre-operative periapical lesions. The mean time of HTB detection was significantly earlier after PP than direct pulp capping (20.03 vs. 36.50 months, Conclusion: The probability of HTB detection increased over time and was influenced by VPT type, periapical lesion status, and root formation status.
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