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자가결찰 브라켓과 골신장술을 이용한 구순구개열 환자의 치험레
문철현(Cheol-Hyun Moon),박선규(Sun-Kyu Park) 대한치과의사협회 2009 대한치과의사협회지 Vol.47 No.10
It is difficult to perform orthodontic treatment foe cleft lip and palate patient. Although there are many orthodontic appliances to expand narrowed maxillary arch, results are rarely successful and the possibility of relapse is increased due to severe scars. Self-ligating bracket, recently used in orthodontic treatment, suggests solution of crowding by expansion of dental arches. Light and continuous force could apply for orthodontic movement due to characteristic low faction of self ligating bracket, which gives expansion force until dentition reaches its new equilibrium position and it can be expressed as spontaneous lateral expansion with heavy labial tension. This kind of expansion force is thought to be a possibility of expanding the constricted maxillary arch of deft lip and palate patient. Repositioning of the maxilla by Le Fort I osteotomy in case of severe maxillary deficiency, increases the possibility of relapse because of limitation in anterior movement and adaptation of soft tissue. In these cases, distraction osteogenesis(DO) can be applied for stable result We report a case of cleft lip and palate patient with narrowed maxillary arch and maxillary deficiency using self ligating bracket and DO
성장기Ⅲ급 환자에서 MTA(Modified Tandem Appliance)를 이용한 교정치료
문철현(Cheol-hyun Moon),남지선(Ji-Seon Nam) 대한치과의사협회 2008 대한치과의사협회지 Vol.46 No.2
In growing patients with ClassⅢ malocclusion and midfacial deficiency, the treatment protocol calls for orthopedic maxillary protraction and clinicians chose the facemask therapy generally. But facemask is not esthetic or comfortable to patients because it should be worn extraorally. Consequently it is difficult to obtain patients cooperation, and this often influences the treatment effects negatively. MTA(modified tandem appliance), that is a small intraoral appliance, is carried conveniently and esthetic relatively. So it seemed more patient-friendly than a facemask. While the treatment deffect of this is similar to that of a facemask. This report presents skeletal Claass Ⅲmalocclusion two cases treated by MTA with good results.
Modified Nance appliance를 이용한 매복치의 교정치료
문철현(Cheol-Hyun Moon),이동근(Dong-Gun Lee) 대한치과의사협회 2007 대한치과의사협회지 Vol.45 No.4
저자들은 modified Nance appliance를 이용하여 환자의 협조에 의존하지 않고 매복된 치아의 교정적인 맹출을 시행하여 양호한 결과를 얻을 수 있었다. 특히 Moon’s appliance를 이용하여 동일 악궁 내에서 약하고 정교한 지속적인 힘을 적용 할 수 있었으며, 힘의 방향을 바꾸기 위한 과정에서 장치 전체를 철거해야 하는 번거로움을 해소 할 수 있었다. Traction of impacted tooth often requires patient compliance to place elastics to surgically exposed impacted tooth. It can be very difficult and time-consuming. The aim of this article was to describe an impacted tooth tractor, Moon s appliance, which was modified from the Nance holding arch appliance. Moon s appliance eliminates patient compliance and generates a light continuous force. We achieved the desired treatment results for impacted tooth using this appliance. This new fixed appliance can be a reasonable alternative to conventional appliances.
가천의대 길병원 교정과에 내원한 매복치 환자의 특성과 치료기간 및 방법에 관한 연구 (2005년~2008년)
문철현(Cheol-Hyun Moon),강현욱(Hyun-Wook Kang),최진휴(Jin-Hugh Choi) 대한치과의사협회 2011 대한치과의사협회지 Vol.49 No.4
Purpose: An impacted tooth is defined as a tooth that shows delayed eruption and is expected to erupt incompletely by clinical and radiograph examination despite it reaching its expected time of eruption. The aims of this study were to investigate the clinical and radiological characteristics and treatment duration and method of impacted teeth in Korean patients. Materials and Methods: For this study we used clinical records, study models, panoramic radiographs and intraoral photographs of patients who attended Gachon University Gil Hospital Orthodontic Department between 2005 and 2008. There were 164 patients with a total number of 202 impacted teeth. Results: Male patients shows a little more prevalence than female patients (1.13:1). The under 12 age group had the highest prevalence of tooth impaction, and the over 19 age group showed the least prevalence of tooth impaction. The ratio of tooth impaction between the left to right ratio was 1.73:1 and maxilla and mandible was 1.84:1. The impacted teeth were most commonly positioned buccally (76 cases, 41.5%). Full nap closure technique (108 cases, 81.2%)was most frequently used for attachment of surgical traction hooks. Maxillary canine impaction was most commonly encountered both in male and female patients. The mean treatment period was 12.2 months and the success rate of treatment was 90.3%. The canine tooth shows the longest treatment time and highest failure rate. The ankylosis was the major cause of failure. Conclusion: Impacted teeth most commonly show in left side maxilla in the under 12 age group. And it is most commonly positioned buccally. The mean treatment period was 12.2 months, and the success rate of treatment was 90.3%.