RELATIONSHIP OF THE IMPACTED MAXILLARY CANINE WITH THE MORPHOLOGY OF ADJACENT LATERAL INCISOR - A RETROSPECTIVE STUDY

Objective:This study aimed to inquireabout the location and inclination of the maxillary-impacted canine and its correlation with the morphology and root resorption of the adjacent lateral incisor by using CBCT. Study design: The samples under investigation comprised 92 diagnosed cases of maxillary impacted canine, consisting of 35 males and 57 females, who met the studys inclusion criteria. Among these cases, 87 were unilateral, while 5 presented bilateral impactions, totaling 97 impacted canines. The morphological measurement of the lateral, angles between the central axis of the lateral incisor to the midline and the palatal plane,in both the impacted and non-impacted sides, were measured and compared. Results: Statistically significant differences were obtained when comparing the morphological (crown length, root length, mesiodistal and buccolingual width of crown) and angular parameters (inclination to palatal plane, angulation to MSR) of the lateral incisor, root resorption of the lateral incisor with canine overlapping, canine cusp tip level with root resorption of the adjacent lateral incisor, canine angulation with root resorption of the adjacent lateral incisor. Conclusion:The association between the morphologic and angular features of the maxillary lateral incisors and maxillary canine impaction was confirmed. Key predictors of maxillary canine impaction were identified as the crown and root length of the lateral incisor, the mesiodistal and buccolingual widths of the lateral incisor crown, and the angulation of both the lateral incisor and canine to the midline.