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Skeletal changes of maxillary protraction without rapid maxillary expansion- A comparison of the primary and mixed dentition

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dc.contributor.authorLee, Dong-Yul-
dc.contributor.authorKim, Eun-Soo-
dc.contributor.authorLim, Yong-Kyu-
dc.contributor.authorAhn, Sug-Joon-
dc.date.accessioned2013-01-23T06:53:09Z-
dc.date.available2013-01-23T06:53:09Z-
dc.date.issued2010-
dc.identifier.citationAngle Orthodontist, Vol.80, No.4, pp.692-698ko_KR
dc.identifier.issn0003-3219-
dc.identifier.urihttps://hdl.handle.net/10371/81046-
dc.description.abstractObjective: To determine potential differences in treatment efficiencies of face mask therapy without rapid maxillary expansion (RME) at different early dental stages. Materials and Methods: Forty-nine Class III children who were treated with a face mask without RME were divided into two groups according to their pretreatment dental stage. The primary dentition treatment group consisted of 26 subjects and the mixed dentition treatment group consisted of 23 subjects. Lateral cephalograms before treatment (T0), at the end of treatment (T1), and at least 1 year after the end of treatment (T2) were calculated and analyzed. Fourteen cephalometric variables were evaluated by t-test to identify any significant differences in skeletal changes between the two groups during T1-T0, T2-T1, and T2-T0. Results: The primary dentition group showed not only a greater response to maxillary protraction without RME than did the mixed dentition group during T1-T0, but also a greater relapse tendency during T2-T1. As a result, no significant differences were noted between the two groups in the treatment effects of face masks without RME over the time period T2-T0. Conclusion: This study suggests that face mask therapy without RME may be postponed to the early to mid mixed dentition period because the therapy induces similar skeletal changes when initiated at primary or mixed dentition. (C) 2010 by The EH Angle Education and Research Foundation, Inc.ko_KR
dc.description.sponsorshipThis study was supported by the Korea University Fund.ko_KR
dc.language.isoenko_KR
dc.publisherEH Angle Education and Research Foundationko_KR
dc.subjectDental ageko_KR
dc.subjectFace maskko_KR
dc.subjectSkeletal changesko_KR
dc.subjectMaxillary protractionko_KR
dc.titleSkeletal changes of maxillary protraction without rapid maxillary expansion- A comparison of the primary and mixed dentitionko_KR
dc.typeArticleko_KR
dc.contributor.AlternativeAuthor이동렬-
dc.contributor.AlternativeAuthor김은수-
dc.contributor.AlternativeAuthor임용규-
dc.contributor.AlternativeAuthor안석준-
dc.identifier.doi10.2319/091609-521.1-
dc.citation.journaltitleAngle Orthodontist-
Appears in Collections:
College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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