Observational studyJournal of applied oral science : revista FOB2021
Root canal retreatment: a retrospective investigation using regression and data mining methods for the prediction of technical quality and periapical healing.
Observational study in Journal of applied oral science : revista FOB, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 24 citations in OpenAlex.
- Professional Training and Clinical/Radiographic Factors Associated With Endodontic Decision-Making: A Before-and-After Study.European journal of dental education : official journal of the Association for Dental Education in Europe · 2026Article
- Exploring Persistent Apical Periodontitis in Humans: Integrative Genetic, Histological and Microbiological Perspectives for Translational Research.International endodontic journal · 2026Article
- Clinical Outcomes of Nonsurgical Retreatment in Teeth With Persistent Apical Periodontitis: A Systematic Review.Cureus · 2025Review
- Impact of Instrumentation Technique on Endodontic Treatment Quality in Curved Molars: A Retrospective Analysis.Australian endodontic journal : the journal of the Australian Society of Endodontology Inc · 2025Article
- RCFLA-YOLO: a deep learning-driven framework for the automated assessment of root canal filling quality in periapical radiographs.BMC medical education · 2025Article
- Retreatment or replacement of previous endodontically treated premolars with recurrent apical periodontitis? An 8-year historical cohort study.Clinical oral investigations · 2025Article
- Root canal therapy combined with endoscopic sinus surgery for odontogenic sinusitis: Efficacy comparison in a cohort study.World journal of clinical cases · 2025Article
- Clinical and imaging aspects associated with persistent apical periodontitis: subsides for the treatment decision-making process.Clinical oral investigations · 2025Article
- Treatment Outcome and Prognostic Factors of Orthograde Retreatment: A Retrospective Study.Journal of International Society of Preventive & Community DentistryArticle
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThis study aimed to investigate patterns and risk factors related to the feasibility of achieving technical quality and periapical healing in root canal non-surgical retreatment, using regression and data mining methods. METHODOLOGY: This retrospective observational study included 321 consecutive patients presenting for root canal retreatment. Patients were treated by graduate students, following standard protocols. Data on medical history, diagnosis, treatment, and follow-up visits variables were collected from physical records and periapical radiographs and transferred to an electronic chart database. Basic statistics were tabulated, and univariate and multivariate analytical methods were used to identify risk factors for technical quality and periapical healing. Decision trees were generated to predict technical quality and periapical healing patterns using the J48 algorithm in the Weka software.
resultsTechnical outcome was satisfactory in 65.20%, and we observed periapical healing in 80.50% of the cases. Several factors were related to technical quality, including severity of root curvature and altered root canal morphology (p<0.05). Follow-up periods had a mean of 4.05 years. Periapical lesion area, tooth type, and apical resorption proved to be significantly associated with retreatment failure (p<0.05). Data mining analysis suggested that apical root resorption might prevent satisfactory technical outcomes even in teeth with straight root canals. Also, large periapical lesions and poor root filling quality in primary endodontic treatment might be related to healing failure.
conclusionFrequent patterns and factors affecting technical outcomes of endodontic retreatment included root canal morphological features and its alterations resulting from primary endodontic treatment. Healing outcomes were mainly associated with the extent of apical periodontitis pathological damages in dental and periapical tissues. To determine treatment predictability, we suggest patterns including clinical and radiographic features of apical periodontitis and technical quality of primary endodontic treatment.
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