The effect of using CBCT in the diagnosis of canine impaction and its impact on the orthodontic treatment outcome

Abstract

Aim:To investigate the added-value of using CBCT in the orthodontic treatment method of maxillary impacted canines and treatment outcome.Materials and Methods:The sample consisted of 118 treated patients. The CBCT group (n = 58) (39 females/19 males with the mean age of 14.3 years) included those with conventional treatment records consisting of panoramic and cephalometric radiographs, intra-and extra-oral photographs, and dental casts and complemented with a CBCT scan for additional diagnostic information. The conventional group (n = 60) (31 females/29 males with mean age 13.1 years) included those with similar conventional treatment records but without CBCT imaging.Results:There were significant differences in the canine-related variables between both groups. The CBCT group had the higher level of difficulty and more severely displaced canines when compared with the conventional group. However, no significant difference was found between groups either in the number of treatment methods used or in the use of interceptive methods combined with other treatment modalities or choice of extraction versus non-extraction. In terms of treatment success and interval duration, no significant differences were found. However, treatment duration was significantly (4 months) shorter in the CBCT group compared with the conventional group (P = 0.023).Conclusion:CBCT has been used in cases with more severe symptoms of maxillary canine impaction. The use of CBCT improved the diagnostic capabilities and improved the chances of success in the more difficult cases to a level similar to that of simpler cases treated on the basis of 2D information.

Determination of size-specific exposure settings in dental cone-beam CT

“…Currently, dental CBCT scans at ages between 5 and 20 years are already performed for a variety of clinical indications, e.g. for general orthodontic planning [13], impacted third molars [14] and canines [15], dental trauma (e.g. autotransplantation [16]), cleft palates [17] and other developmental disorders, airway evaluation [18], temporomandibular disorders (e.g.…”

Prediction of maxillary canine impaction based on panoramic radiographs

“…[Alqerban, Jacobs, Fieuws, & Willems, ; Ericson & Kurol, ] A maxillary canine was considered to be impacted when the sector was greater than or equal to two and/or 3^ML was ≥15°. [Alqerban et al, ; Warford, Grandhi, & Tira, ] Five hundred seventy two patients were selected who showed a unilateral or bilateral maxillary canine impaction at T1. Of those, 306 patients were still untreated at T2.…”

Decision-making for Canine Exposure: Literature Review and Suggestion of a Clinical Algorithm

“…Crown position in the alveolar arch: Palatal, buccal or in the arch line 33 2. Type of impaction: Partial vertical, complete vertical and complete horizontal impaction 33 3. Root development: Incomplete or complete root development 33 4.…”

“…Type of impaction: Partial vertical, complete vertical and complete horizontal impaction 33 3. Root development: Incomplete or complete root development 33 4. Tooth inclination: mesiovestibular, distovestibular, mesiopalatal or distopalatal 34 Canine impaction classification is important in decision-making and treatment planning.…”