DOI: 10.69601/meandrosmdj.1912293 ISSN: 2149-9063

Association Between Panoramic Radiographic Parameters and Root Resorption in Maxillary Impacted Canines

Genta Agani Sabah, Mehmet Gümüş Kanmaz
Objective: To evaluate the relationship between radiographic measurements obtained from panoramic images and root resorption of neighboring teeth in patients presenting with a unilateral impacted maxillary canine, with cone-beam computed tomography (CBCT) serving as the gold standard.Materials and Methods: 88 Caucasian patients with unilateral maxillary impacted canines were included. Panoramic parameters, including canine angulation relative to the midline, occlusal plane, and lateral incisor, sector classification, perpendicular distance to the occlusal plane (d distance), and primary canine retention, were measured. Root resorption was assessed using CBCT. Associations were analyzed using univariate tests, binary logistic regression, and receiver operating characteristic (ROC) curve analysis, with significance set at p0.05). The d distance was confirmed as a significant independent predictor in the logistic regression model (OR=1.184, p=0.024), with ROC curve analysis establishing an optimal d distance cut-off of 11.2 mm (AUC=0.698), whereas patient age did not retain significance (p>0.05). Although the regression model indicated a marginally lower risk for Sector III compared to Sector I, overall sector classification did not demonstrate standalone predictive value (p>0.05). Conclusion: The d distance was the only parameter that independently predicted adjacent root resorption, with a distance of 11.2 mm found to be a potentially clinically useful threshold that may support selective referral for CBCT in high-risk cases.

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