Background: Maxillary canine impaction is frequently associated with morphological variations of adjacent lateral incisors. However, the role of root volume remains inadequately explored.

Aim: To evaluate and compare the root volume of maxillary lateral incisors adjacent to impacted canines and to assess its correlation with impaction severity.

Materials and Methods: A retrospective cross-sectional CBCT study was conducted on 24 patients with unilateral impacted maxillary canines. Root length and volume were measured using standardized volumetric segmentation. Impaction severity was assessed using the KPG index. Intergroup comparisons were performed using paired t-tests, and correlations were evaluated using Spearman’s coefficient.

Results: Lateral incisors adjacent to impacted canines demonstrated significantly reduced root length and volume compared to the contralateral side (p < 0.05). A significant negative correlation was observed between KPG score and root volume.