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KMID : 0952820120150020089
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Journal of Korean Cleft Lip & Palate Association
2012 Volume.15 No. 2 p.89 ~ p.96
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Distraction Osteogenesis of Maxillary Anterior Segment in Cleft Lip and Palate Patients
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Kim Eu-Gene
Cheon Kang-Yong
Kim Soo-Ho
Park Hyong-Wook
Hwang Soon-Jung
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Abstract
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Le Fort 1 osteotomy or maxillary advancement with distraction osteogenesis (DO) is main treatment strategy for cleft palate patients with maxillary hypoplasia. Maxillary DO allows greater maxillary advancement within physiological limit than Le Fort 1 osteotomy. Moreover, it is better for velopharyngeal function. However, there is a greater tendency for an increase in nasal sound when maxilla is advanced excessively. Therefore, the advancement of anterior maxillary segment using DO has been utilized. It offers advantages such as an increase in the length of the palate, a prevention of the change in palatopharyngeal depth, and a preservation of the velopharyngeal function. Moreover, it will obliterate the necessity of bone graft, and it prevents the occurrence of oronasal or oroantral fistula. Finally, it stimulates the regeneration of the soft and hard tissue of alveolus, and subsequently makes possible to place implant.
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KEYWORD
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Maxillary anterior segment, Distraction osteogenesis, Velopharyngeal insufficiency, Cleft palate, Hypernasality
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