What is the evidence of outcomes of endodontically treated cracked teeth?

Data sources Ovid, PubMed and Cochrane were searched using the indexed terms. Additional searches were made using endodontic textbooks and endodontic-related journals.Study selection Two independent reviewers screened the titles, abstracts and/or full text for clinical studies evaluating the treatment outcomes of healthy patients over 18 years of age who received root canal treatment with at least one year in occlusal function.Results The study included four articles and reported an overall survival of 84% after 60 months in endodontically treated cracked teeth. The authors reported that teeth with single crack, cracks contained within crowns and teeth with pre-treatment periodontal probing less than 3 mm had a lower risk of being extracted.Conclusion This study reported a moderately high survival rate of endodontically treated cracked teeth.