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KMID : 0361920130430020074
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Korean Journal of Orthodontics
2013 Volume.43 No. 2 p.74 ~ p.82
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Condylar repositioning using centric relation bite in bimaxillary surgery
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Lee Chang-Youn
Jang Chang-Su
Kim Ju-Won
Kim Jwa-Young
Yang Byoung-Eun
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Abstract
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Objective: The purpose of this study was to evaluate displacement of the mandibular condyle after orthognathic surgery using a condylar-repositioning device. Methods: The patient group comprised 20 adults who underwent bimaxillary surgery between August 2008 and July 2011. The degree of condylar displacement was measured by pre- and postoperative tomographic analysis using centric relation bite and a wire during surgery. A sur vey assessing temporomandibular joint (TMJ) sound, pain, and locking was performed. The 20 tomographs and surveys were analyzed using the Wilcoxon signed-rank test and McNemar’s test, respectively. Results: No significant changes were observed in the anterior, superior, or posterior joint space of the TMJ (p > 0.05). In addition, no significant change was observed in TMJ sound (p > 0.05). However, TMJ pain and locking both decreased significantly after surgery (p < 0.05). Conclusions: Due to its simplicity, this method may be fea sible and useful for repositioning condyles.
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KEYWORD
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Centric relation, Temporomandibular joint, Orthognathic surgery
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