OBJECTIVE: This article discusses the relationship between apical limit of root canal filling and success on endodontic treatment of a mandibular molar. STUDY DESIGN: A mandibular right first molar with vital pulp was endodontically treated, and 3 years later periapical lesions on mesial and distal roots were detected. The canals were retreated and obturated to the same levels as in the previous treatment. RESULTS: An 8-year radiographic follow-up showed repair of the periapical lesions on both roots. CONCLUSIONS: Results suggest that the apical limit of obturation seems to have no influence in the repair of periapical tissues in mandibular molars.
OBJECTIVE: This article discusses the relationship between apical limit of root canal filling and success on endodontic treatment of a mandibular molar. STUDY DESIGN: A mandibular right first molar with vital pulp was endodontically treated, and 3 years later periapical lesions on mesial and distal roots were detected. The canals were retreated and obturated to the same levels as in the previous treatment. RESULTS: An 8-year radiographic follow-up showed repair of the periapical lesions on both roots. CONCLUSIONS: Results suggest that the apical limit of obturation seems to have no influence in the repair of periapical tissues in mandibular molars.