Clinical changes of TMD and condyle stability after two jaw surgery with and without preceding TMD treatments in class III patients
윤상용, 송재민, 김용덕, Chung In-Kyo, 신상훈,
소속 상세정보
윤상용 ( Yoon Sang-Yong ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
송재민 ( Song Jae-Min ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
김용덕 ( Kim Yong-Deok ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
( Chung In-Kyo ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
신상훈 ( Shin Sang-Hun ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
Abstract
Background: This study are to identify the symptomatic changes and condylar stability after 2 jaw surgery without preceding treatments for Temporomandibular joints(TMJ) in class III patients with the TMJ symptoms; and to assess therapeutic effect of 2 jaw surgery and the necessity of preceding treatment for alleviation of TMJ symptoms.
Methods: 30 prognathic patients with preexisting TMJ symptoms were divided into 2 groups according to presence or absence of preceding treatments before the surgery. We evaluated symptomatic changes on both TMJ by questionnaires and clinical examinations. And we reconstructed 3D cone beam computed tomography images before 2 jaw surgery, immediately after the surgery, and 6 months or more after the surgery with SimPlant software, and analyzed the stability of condylar position on 3D reconstruction model. Significances were assessed by the Wilcoxon signed rank test on SPSS ver. 20.0.
Results: Both groups had favorable changes of TMJ symptoms after orthognathic surgery. And postoperative position of condyle had good stability during follow-up period.
Conclusion: 2 jaw surgery without preceding treatments for TMD can have therapeutic effect for TMD patients with class III malocclusion.
키워드
Orthognathic surgery; 2 jaw surgery; TMJ; Condylar stability; TMD
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