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Quintessence Publishing: Journals: ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

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Spring 2008
Volume 9 , Issue 1

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Risk Factors for Post-Orthognathic Condylar Resorption: A Review

Daljit S. Gill, BDS, BSc, MSc, FDS, MOrth, FOrthRCS/Mohammed El Maaytah, MSc, PhD, FDS RCPS, LDS RCS/Farhad B. Naini, BDS, MSc, FDS, MOrth, FDSOrthRCS

Pages: 2125
PMID: 18426101

Aims: To evaluate the current evidence identifying risk factors for post-orthognathic mandibular condylar resorption. Methods: Studies published between January 1980 and August 2006 related to post-orthognathic condylar resorption were identified by searching the following databases: PubMed, Medline, EMBASE, PsycInfo, DARE, CENTRAL, and the Cochrane database of systematic reviews. The following keywords were used to identify relevant publications: condylar resorption, progressive condylar resorption, condylar atrophy, dysfunctional remodeling, and condylysis. A hand search of these papers was also carried out to identify additional articles. Results: A number of methodological flaws are present within the current literature, including the comparison of nonmatched patient groups and poor imaging techniques, which makes evaluation difficult. Significant risk factors identified for condylar resorption include being female with mandibular retrognathia associated with an increased mandibular plane angle, the presence of pretreatment condylar atrophy, and undergoing posterior condylar displacement and upward and forward rotation of the mandible at the time of surgery. Conclusions: Better-controlled studies are required to fully understand the link between condylar resorption and orthognathic surgery. A number of risk factors have been identified within this article. It is important for orthodontists to consider these, particularly when consulting patients for treatment and identifying patients who may require closer postsurgical follow-up. World J Orthod 2008;9:2125.

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