the hierarchy of stability and predictability in orthognathic surgery with rigid fixation an update and extension层次结构的稳定性和可预测性orthognathic手术与刚性固定更新和扩展.pdfVIP

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the hierarchy of stability and predictability in orthognathic surgery with rigid fixation an update and extension层次结构的稳定性和可预测性orthognathic手术与刚性固定更新和扩展.pdf

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the hierarchy of stability and predictability in orthognathic surgery with rigid fixation an update and extension层次结构的稳定性和可预测性orthognathic手术与刚性固定更新和扩展

Head Face Medicine BioMed Central Research Open Access The hierarchy of stability and predictability in orthognathic surgery with rigid fixation: an update and extension William R Proffit*, Timothy A Turvey and Ceib Phillips Address: Departments of Orthodontics and Oral and Maxillofacial Surgery, School of Dentistry, University of North Carolina, Chapel Hill, NC 27599-7450, USA Email: William R Proffit* - William_Proffit@; Timothy A Turvey - Tim_Turvey@; Ceib Phillips - Ceib_Phillips@ * Corresponding author Published: 30 April 2007 Received: 27 March 2007 Accepted: 30 April 2007 Head Face Medicine 2007, 3:21 doi:10.1186/1746-160X-3-21 This article is available from: /content/3/1/21 © 2007 Proffit et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract A hierarchy of stability exists among the types of surgical movements that are possible with orthognathic surgery. This report updates the hierarchy, focusing on comparison of the stability of procedures when rigid fixation is used. Two procedures not previously placed in the hierarchy now are included: correction of asymmetry is stable with rigid fixation and repositioning of the chin also is very stable. During the first post-surgical year, surgical movements in patients tr