Long‐Term Fate of Resorbed Adjacent Teeth Associated With Impacted Maxillary Canines Following Orthodontic Treatment: A Systematic Review

Limited evidence exists on the long‐term prognosis of resorptive lesions in teeth adjacent to impacted maxillary canines' post‐orthodontic treatment. To systematically evaluate the long‐term radiographic status of resorbed maxillary incisor roots following orthodontic correction of adjacent ectopically erupting canines. Comprehensive electronic and manual searches across five databases identified retrospective or prospective studies assessing long‐term Cone Beam Computed Tomography (CBCT) or radiographic follow‐up of resorbed adjacent teeth. Data selection, extraction and bias assessment were performed independently. Five studies with moderate risk of bias met inclusion criteria. The combined sample consisted of 54 male and 123 female. Findings indicate that orthodontic management of impacted canines carries minimal risk of progressive root resorption or periodontal deterioration in adjacent incisors. Resorbed incisors largely retained vitality and functional stability, with no mobility beyond Grade 1 and resorption lacunae often became shallower over time. Marked heterogeneity precluded meta‐analysis. Long‐term outcomes are favourable, with most resorbed root surfaces showing natural remodelling and minimal need for endodontic intervention. PROSPERO Registration: PROSPERO CRD42024553019.