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장골 이식을 동반한 임플란트 수술 후의 합병증; 증례보고
최영준,최원철,Choi, Young-Jun,Choi, Won-Cheul 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.4
In a one-stage approach, where the implant installation is performed simultaneously with the iliac bone graft, various complications are observed. The observed complications are as follows; severe bone resorption at the maxillary anterior region and the area adjacent to the nasal cavity, shortage of soft tissue to cover the augmented alveolar bone, difficulties with oral hygiene care caused by the diminished vestibular space and non-esthetic prosthesis. These are good reasons for choosing the two-stage approach over the one-stage approach in spite of all the advantages it has, and should be taken into careful consideration when diagnosing and planning treatment using the one-stage approach.
Human immunodeficiency virus에 감염된 환자의 악교정수술
이진숙(Jin-Sook Lee),최원철(Won-Cheul Choi),윤경인(Kyoung-In Yun) 대한치과의사협회 2013 대한치과의사협회지 Vol.51 No.8
Human immunodeficiency virus is a retrovirus that causes acquired immunodeficiency syndrome. Acquired immunodeficiency syndrome is defined in terms of “either the occurrence of specific diseases in association with a HIV infection or a CD4 cell count below 200cells/ul” by centers for disease control and prevention(CDC). When performing the surgery of human immunodeficiency virus infected patients, several factors should be considered. First, standard precautions should be performed to prevent infection. It is safe to treat human immunodeficiency virus infected patients if we follow the standard precautions. Second, when making a surgical plan, surgeons have to take account of delayed bone healing and postsurgical infection. This case report presents a case of orthognathic surgery of human immunodeficiency virus infected patient.
Mini-implant를 이용한 하악골 우각부 골절의 효과적인 정복;
양병은(Byoung-Eun Yang),최영준(Young-Jun Choi),최원철(Won-Cheul Choi) 대한구강악안면외과학회 2007 대한구강악안면외과학회지 Vol.33 No.4
In an open reduction of the mandibular angle fracture, it is crucial to approximate each fracture segment as closer as possible for the reduction of the healing period. In this case report, we proposed a new technique for the mandibular angle fracture. This was designed to minimize the gap between two separated segments using mini-implants and surgical wires. Mini-implants were placed around the fracture line, followed by wire ligation to minimize the fracture gap. And then internal fixation was easily employed with plates and screws. The advantages of this technique were reduced time for operation, the promotion of healing, rapid functional recovery, and few complications.
하악골 과두하 골절 시 후하악접근법 통해 ORIF시행한 환자들의 술 후 추적조사
이슬기(Seul-Ki Lee),송경호(Kyoung-Ho Song),김좌영(Jwa-Young Kim),송상훈(Sang-Hoon Song),양병은(Byoung-Eun Yang),최원철(Won-Cheul Choi),김성곤(Seong-Gon Kim) 대한구강악안면외과학회 2007 대한구강악안면외과학회지 Vol.33 No.6
Purpose: The classic technique for open reduction of subcondylar fractures is the submandibular approach. The aim of this study was to evaluate clinical result of retromandibular approach to displaced subcondylar fractures. Material and methods: During a period of 24months we perfomed a prospective study with a retromandibular approach in 23 paients with displaced subcondylar fractures. In this article we describe clinical result in 23 patients with follow ups for 3 months after surgery. Preoperatively all patients had malocclusion and radiology demonstrated displacement. Result: The retromandibularl approach for ORIF was good in all case. Mouth opening(M/O) was 49mm. Occlusion was good too. Permanent facial nerve palsy was not detected. Conclusion: Our findings indicate that the retromandibular approach is a safe technique for subcondylar fractures.
김형욱(Hyung Wook Kim),신성수(Sung-Soo Shin),김종식(Jong-Sik Kim),김기영(Ki-Young Kim),김윤지(Yoon-Ji Kim),홍순민(Soon-Min Hong),천세환(Se-Hwan Cheon),박양호(Yang-Ho Park),최원철(Won-Cheul Choi),박준우(Jun-Woo Park) 대한구강악안면외과학회 2007 대한구강악안면외과학회지 Vol.33 No.4
Purpose: The diagnostic relevancies and characteristics and of clinical methods in the diagnosis of internal derangement (ID) were tested by comparing the results of them with those of magnetic resonance imaging (MRI). Methods: 75 patients (150 temporomandibular joints; TMJs), who were suspected to have ID by clinical diagnoses, were included. Clinical diagnoses including mouth opening pathway and TMJ sound were conducted and MRI takings were done. Accuracies, sensitivities, specificities, positive predictive values, and negative predictive values of clinical diagnosis, mouth opening pathway, and TMJ sound were calculated by comparing with diagnoses with MRIs. Results: Accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of clinical diagnosis were 59.3%, 83%, 49%, 81%, and 51%. They were 59%, 82%, 25%, 73%, and 35% for mouth opening pathways. Although deviation was somewhat accurate for representing disc displacement with reduction (ADDWR), other discrepancies on opening pathways were not clinically relevant. Accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of clicking sounds were 85%, 49%, 78%, 85%, and 37%. TMJs with crepitus were only three. But all TMJs with crepitus were diagnosed to have disc displacement without reduction (ADDWOR). Conclusion: When compared with diagnoses with MRIs, clinical diagnoses for ID were not so accurate. But they were suitable for screening tests for ID. Opening pathways and TMJ sounds were not so relevant in the diagnoses of IDs and so it was concluded that considerations for other factors must be included in the diagnoses of IDs.