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New treatment modality for maxillary hypoplasia in cleft patients- Protraction facemask with miniplate anchorage

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Authors
Baek, Seung-Hak; Kim, Keun-Woo; Choi, Jin-Young
Issue Date
2010-07
Publisher
E.H Angle Education and Research Foundation
Citation
Angle Orthod. 2010;80:783–791
Keywords
Maxillary protractionFacemaskMiniplate
Abstract
Objective: To present cleft patients treated with protraction facemask and miniplate anchorage
(FM/MP) in order to demonstrate the effects of FM/MP on maxillary hypoplasia.
Materials and Methods: The cases consisted of cleft palate only (12 year 1 month old girl,
treatment duration 5 16 months), unilateral cleft lip and alveolus (12 year 1 month old boy,
treatment duration 5 24 months), and unilateral cleft lip and palate (7 year 2 month old boy,
treatment duration 5 13 months). Curvilinear type surgical miniplates (Martin, Tuttlinger, Germany)
were placed into the zygomatic buttress areas of the maxilla. After 4 weeks, mobility of the
miniplates was checked, and the orthopedic force (500 g per side, 30u downward and forward from
the occlusal plane) was applied 12 to 14 hours per day.
Results: In all cases, there was significant forward displacement of the point A. Side effects such
as labial tipping of the upper incisors, extrusion of the upper molars, clockwise rotations of the
mandibular plane, and bite opening, were considered minimal relative to that usually observed with
conventional protraction facemask with tooth-borne anchorage.
Conclusions: FM/MP can be an effective alternative treatment modality for maxillary hypoplasia
with minimal unwanted side effects in cleft patients.
ISSN
0003-3219
Language
English
URI
http://hdl.handle.net/10371/74084
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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