Orthodontic traction of impacted maxillary canines using segmented arch mechanics

Abstract

The principles of orthodontic mechanics strongly influence the success of impacted canine traction. The present study discusses the main imaging exams used for diagnosis and localization of impacted canines, the possible associated etiological factors and the most indicated mechanical solutions.

Treatment of impacted canines with aligners: An alternative and viable option

“…Nowadays, it is possible to correct an increasing number of malocclusions by using aligners, including impacted canines. Previously, however, impacted canine treatment was considered as being challenging and often requested a hybrid approach featuring both aligners and sectional fixed appliances 20‐23 . Indeed, the traction phase of impacted canines used to be considered possible only by adopting an auxiliary system as sectional fixed appliances or TADs 24‐26 …”

“…Canine‐forced eruption technique with surgery closed approach has been widely described in the literature, but it has been never associated with aligners and with elastics activation system managed directly by patient. In every device described in the literature are present fixed appliance and/or anchorage system that preview an additional surgery phase for insertion of miniscrews or plates 23‐26,28 . Our system is clearly less invasive and it guarantees esthetic and less stress for the patient who can decide during the day when is the best time to wear elastics for extruding impacted canines.…”

“…In literature, there are hundreds of publications reporting several effective methods pursued in order to recover impacted canines 16‐19 . The majority thereof reports the utilization of full or segmental fixed appliances able to exert rational forces and specific biomechanics 20‐23 . Additionally, other articles report the use of skeletally anchored devices demonstrating their effectiveness for the treatment of complex canine impaction 24‐26 …”

“… 16 , 17 , 18 , 19 The majority thereof reports the utilization of full or segmental fixed appliances able to exert rational forces and specific biomechanics. 20 , 21 , 22 , 23 Additionally, other articles report the use of skeletally anchored devices demonstrating their effectiveness for the treatment of complex canine impaction. 24 , 25 , 26 …”

Association between hypodontia of permanent maxillary lateral incisors and other dental anomalies

“…If incisors have any shape anomaly or are missing, canines may erupt ectopically or become impacted. 18 …”