매복된 하악 제2대구치의 맹출 유도
ERUPTION GUIDANCE OF IMPACTED MANDIBULAR SECOND MOLAR
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초록
치아의 매복은 맹출로 내의 물리적 장애물이나 치아의 비정상적 위치에 의해 발생한 치아 맹출의 정지로, 하악 제2대구치의 매복은 비교적 드물다. 매복된 하악 제2대구치는 우식, 치주염, 제1대구치 치근흡수 등을 유발하므로 조기 진단과 치료가요구된다. 첫 번째 증례는 10세 남자 환자로 하악 양측 제2대구치의 매복을 구리선을 이용하여 치료하였다. 두 번째 증례는 12세 여자 환자로 구강검진 도중 하악 좌측 제2대구치의 매복이 발견되어 Humphrey 장치를 이용하여 치료하였다. 세 번째 증례는17세 여자 환자로 하악 우측 소구치부에 식립한 미니 임플란트를 고정원으로 하는 uprighting spring을 이용하여 하악 우측제2대구치의 매복을 치료하였다. 네 번째 증례는 18세 남자 환자로 매복된 하악 좌측 제2대구치에 부착한 교정용 버튼과 하악지에 식립한 미니 임플란트를 elastic thread로 연결하여 치료하였다
Abstract
Tooth impaction is defined as a failure of tooth eruption resulting from the physical obstacles in the eruption path or the abnormal position of the tooth germ. Impaction of mandibular second molar is relatively rare, and it may incite pathologic conditions such as dental caries, periodontitis, or root resorption of adjacent first molar. Thus, early diagnosis and treatment is recommended. In the first case, a 10-year-old male patient, was treated by brass wire to separate the bilaterally impacted mandibular second molars. In the second case, a 12-year-old female patient, was treated with Humphrey appliance for impacted mandibular left second molar, which was detected during a periodical dental examination. In the third case, a 17-year-old female patient with impacted mandibular right second molar, was treated by uprighting spring with mini-implant anchorage around premolar area. In the last case, an 18-year-old male patient,was treated with mini-implant placed on the ramus of mandible connected to the orthodontic buttons bonded on impacted mandibular left second molar by elastic thread.
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