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Miniscrew-assisted nonsurgical palatal expansion before orthognathic surgery for a patient with severe mandibular prognathism

Authors
 Kee-Joon Lee  ;  Young-Chel Park  ;  Joo-Young Park  ;  Woo-Sang Hwang 
Citation
 AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, Vol.137(6) : 830-839, 2010 
Journal Title
AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
ISSN
 0889-5406 
Issue Date
2010
MeSH
Bone Screws* ; Cephalometry ; Humans ; Male ; Malocclusion, Angle Class III/surgery ; Malocclusion, Angle Class III/therapy* ; Mandible/abnormalities ; Mandible/surgery ; Maxilla/abnormalities ; Maxilla/surgery ; Miniaturization ; Orthodontic Anchorage Procedures/instrumentation* ; Orthognathic Surgical Procedures ; Osteotomy, Le Fort ; Palatal Expansion Technique/instrumentation* ; Prognathism/surgery ; Prognathism/therapy* ; Young Adult
Abstract
A transverse maxillary deficiency in an adult is a challenging problem, especially when it is combined with a severe anteroposterior jaw discrepancy. The demand for nonsurgical maxillary expansion might increase as patients and clinicians try to avoid a 2-stage surgical procedure-surgically assisted rapid palatal expansion followed by orthognathic surgery-and detrimental periodontal effects and relapse. In this regard, a miniscrew-assisted rapid palatal expansion was devised and used to treat a 20-year-old patient who had severe transverse discrepancy and mandibular prognathism. Sufficient maxillary orthopedic expansion with minimal tipping of the buccal segment was achieved preoperatively, and orthognathic surgery corrected the anteroposterior discrepancy. The periodontal soundness and short-term stability of the maxillary expansion were confirmed both clinically and radiologically. Effective incorporation of orthodontic miniscrews for transverse correction might help eliminate the need for some surgical procedures in patients with complex craniofacial discrepancies by securing the safety and stability of the treatment, assuming that the suture is still patent.
Full Text
http://www.sciencedirect.com/science/article/pii/S0889540610001125
DOI
10.1016/j.ajodo.2007.10.065
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Park, Young Chel(박영철)
Lee, Kee Joon(이기준) ORCID logo https://orcid.org/0000-0002-0782-3128
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/101235
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