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Year : 2015  |  Volume : 3  |  Issue : 3  |  Page : 181-187

The effect of corticotomy on tooth movements during canine retraction

1 Department of Orthodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey
2 Private Periodontolog, Istanbul, Turkey
3 Department of Plastic Reconstructive and Aesthetic Surgery, Faculty of Medicine, Gazi University, Ankara, Turkey

Correspondence Address:
Fatma Deniz Uzuner
Department of Orthodontics, Gazi University Faculty of Dentistry, Biskek Cd. (8.Cd.) 82.Sk., No: 4, 06510 Emek, Ankara
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2321-3825.159548

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Objectives: The objective was to evaluate the effect of corticotomy/corticectomy surgery combined with fixed appliances on tooth movement during the canine retraction phase. Materials and Methods: We assessed 13 postpubertal patients (3 males and 10 females) requiring extraction of both maxillary first premolars. One side of the upper dental arch was treated with a PG retraction spring as a control, while the other side was treated with combined corticotomy/corticectomy surgery and a PG spring. A force of 100 g was used for canine retraction on both sides, with activation of the spring monthly on the control side and once every 15 days on the combined treatment side. A paired t-test was used to assess the difference between the two sides. Results: There was a small but statistically significant reduction in the duration of canine retraction (P < 0.05) and an increase in the rate of canine retraction (P < 0.05) (mm/month) in the combined treatment group. No difference in anchorage loss was observed between the groups. Tipping per millimeter of retraction was significantly different between the groups (P < 0.05). Conclusion: Corticotomy-assisted orthodontics increased the rate of tooth movement during canine retraction in 20% ratio. Relative bodily tooth movement was achieved with the corticotomy combined treatment.

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