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Condylectomy as the Treatment for Active Unilateral Condylar Hyperplasia of the Mandible and Severe Facial Asymmetry: Retrospective Review Over 18 Years

Authors
 J-Y Kim  ;  T-W Ha  ;  J H Park  ;  H-D Jung  ;  Y-S Jung 
Citation
 INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, Vol.48(12) : 1542-1551, 2019-12 
Journal Title
 INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY 
ISSN
 0901-5027 
Issue Date
2019-12
MeSH
Bone Neoplasms* ; Facial Asymmetry* ; Humans ; Hyperplasia ; Mandible ; Mandibular Condyle ; Neoplasm Recurrence, Local ; Retrospective Studies
Keywords
condylectomy ; facial asymmetry ; orthognathic surgery ; temporomandibular joint ; unilateral condylar hyperplasia
Abstract
Unilateral condylar hyperplasia (UCH) of the mandible is a disorder affecting the condyle size, resulting in facial asymmetry. This study was a retrospective review of 27 patients with UCH who underwent condylectomy between 2000 and 2017 at Yonsei University Dental Hospital. Patient demographic characteristics were summarized. UCH was divided into three subtypes: hemimandibular elongation (HE, n=15), hemimandibular hyperplasia (HH, n=4), and osteochondroma (OC, n=8). Of the 27 patients, only one with the HE type and five (18.5%) with the OC type complained of joint pain. Bone scans of all patients showed higher uptake on the UCH side. Lip and maxillary canting was prominent in the HH and HE types. Five patients (18.5%) underwent condylectomy alone, 13 (48.1%) underwent condylectomy with orthodontic treatment, and nine (33.3%) underwent adjunctive jaw surgery with orthodontic treatment. The treatment modalities varied according to the subtype. In all OC type patients, removal of the hyperplastic condyle treated the facial asymmetry. Additional post-surgical orthodontic treatment was necessary in only three cases (37.5%). All HH type patients required mandibuloplasty. All patients showed a stable occlusal outcome without relapse and an improvement in subjective symptoms, despite a decrease in mouth opening of 2.2mm. These findings might be useful in treatment planning for UCH patients.
Full Text
https://www.sciencedirect.com/science/article/pii/S0901502719312160
DOI
10.1016/j.ijom.2019.06.022
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jun-Young(김준영) ORCID logo https://orcid.org/0000-0002-6596-6135
Jung, Young Soo(정영수) ORCID logo https://orcid.org/0000-0001-5831-6508
Jung, Hwi Dong(정휘동) ORCID logo https://orcid.org/0000-0003-1025-8323
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/175836
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