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KMID : 0361920180480010057
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Korean Journal of Orthodontics
2018 Volume.48 No. 1 p.57 ~ p.62
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Osseous outgrowth on the buccal maxilla associated with piezosurgery-assisted en-masse retraction: A case series
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Tuncer Nilufer Irem
Arman-Ozcirpici Ayca
Oduncuoglu Bahar Fusun
Kantarci Alpdogan
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Abstract
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Piezoelectric surgery is a novel surgical approach used in orthodontic treatment for rapid tooth movement. This paper presents a case series wherein osseous outgrowths were observed in response to piezosurgery-assisted en-masse retraction. Sixteen patients requiring upper premolar extractions were treated with miniscrew-supported en-masse retraction and received minimally invasive decortication via piezosurgery. Computed tomography (CT) of the maxillary anterior region was performed to investigate the nature of the outgrowths. In 8 of the 16 patients, hemispheric or disc-shaped osseous outgrowths were observed on the sites where piezosurgery was performed during retraction. CT images revealed that these outgrowths were alveolar bone. This case series presents a previously unreported osseous response to piezosurgery-assisted tooth movement during orthodontic treatment. The response is mostly transient and is observed in 50% of the treated patients, suggesting a bone turnover that can be assessed clinically and radiographically.
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KEYWORD
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Piezosurgery, Bone biology, Osseous outgrowths, Computed tomography
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