Transport dentoalveolar distraction osteogenesis-assisted rapid orthodontic canine retraction.
OBJECTIVE
A recent innovative use of distraction osteogenesis technique in the field of orthodontic tooth movement is the application of the principle of distraction to move individual tooth segments rapidly, thus reducing orthodontic treatment time.


METHODS
Twelve maxillary canine teeth were rapidly retracted using the concept of dentoalveolar distraction osteogenesis. They were evaluated for the time required to complete the retraction, canine tipping, anchorage loss, and root resorption using intraoral radiographs and lateral cephalograms. The vitality of the canine was also evaluated using an electric pulp tester.


RESULTS
Canines can be rapidly retracted by dentoalveolar distraction, and subsequently the total orthodontic treatment time can be reduced as described in this technique. The time taken is 12.5 +/- 0.50 days with a minimal amount of tipping and acceptable amount of anchorage loss. All the teeth were vital with no evidence of root resorption.


CONCLUSIONS
The concept of distraction osteogenesis for rapid orthodontic tooth movement is thought to be promising and feasible for clinical practice.
Kharkar
Viraj R
VR
Department of Oral and Maxillofacial Surgery, Pravara Rural Dental College, Loni, India. virajkharkar@gmail.com
Kotrashetti
S M
SM
D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D003481:Cuspid / Q000473:pathology*; D003791:Dental Pulp Test; D016267:External Fixators; D005240:Feasibility Studies; D005500:Follow-Up Studies; D006801:Humans; D008311:Malocclusion, Angle Class I / Q000628:therapy; D008437:Maxilla / Q000601:surgery*; D052280:Orthodontic Anchorage Procedures / Q000009:adverse effects / Q000295:instrumentation; D016382:Orthodontic Appliance Design; D010012:Osteogenesis / Q000502:physiology; D019857:Osteogenesis, Distraction / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D010027:Osteotomy / Q000379:methods; D016300:Radiography, Bitewing; D012391:Root Resorption / Q000209:etiology; D013997:Time Factors; D014087:Tooth Movement Techniques / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D055815:Young Adult