Objective: The purpose of this retrospective study was to assess facial and palatal alveolar wall thickness (AWT) in relation to sagittal root position (SRP) of maxillary anterior teeth using cone-beam computed tomography (CBCT). Methodology: 102 CBCT images (60 females, 42 males) of anterior maxillary teeth were reviewed. SRP was classified according to Kan’s classification, and AWT was evaluated at coronal (4 mm from the cementoenamel junction), mid-root, and apical (2 mm from the apex) levels of the facial and palatal. Secondary variables of sex, age and tooth type were analyzed. Results: The SRP distribution was 76.6% class I, 11.3% class II, 0.8% class III, and 11.3% class IV. AWT, from thickest to thinnest, was found in palatal apical>mid>coronal, followed by facial coronal>mid>apical. Conclusions: AWT was thickest in SRP class II, followed by class I and III, and least thick in class IV at all measured areas (P<.05). A significantly higher AWT was associated with class I in central incisors, class II in canine teeth and in males, and class IV in central incisors and canines.