Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Treatment for Class II Division I Malocclusion Using Cervical Headgear and Hotz Appliance: A Case Report

Cervical Headgear와 Hotz 장치를 이용한 II급 I류 부정교합의 치료 : 증례 보고

  • Cho, Yongjae (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Kim, Seonmi (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University) ;
  • Choi, Namki (Department of Pediatric Dentistry, School of Dentistry, Chonnam National University)
  • 조용제 (전남대학교 치과대학 소아치과학교실) ;
  • 김선미 (전남대학교 치과대학 소아치과학교실) ;
  • 최남기 (전남대학교 치과대학 소아치과학교실)
  • Received : 2014.10.02
  • Accepted : 2015.01.02
  • Published : 2016.02.29
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Abstract

Many types of orthopedic appliances have been developed and used for the treatment of class II malocclusion in pediatric dentistry. Headgear is one of the extraoral appliances, which is used for the purpose of preventing the overgrowth of maxilla. Hotz appliance is used in couple with a cervical headgear for the expansion of maxilla and retraction of maxillary incisors. This case report is about the orthodontic treatment of three patients with class II division I malocclusion. These young patients were given orthopedic treatment in combination with a cervical headgear and Hotz appliance. After the treatment using these extraoral and intraoral appliances, succeeding treatments were practiced considering individual needs as follows: fixed orthodontic appliance for mandibular anterior crowding, Class II activator for retention and additory orthopedic treatment and the retention with Hotz appliance. Young patients with Class II division I malocclusion reported in this study received the orthodontic treatment using a cervical headgear and Hotz appliance as well as appropriate succeeding treatment afterward. All patients received improved convex profiles and lip protrusions by retracting maxilla and maxillary incisors.

성장기 아동의 II급 부정교합의 치료에는 많은 악정형장치가 사용되어 왔으며 다양한 형태로 변화하여 발전되어 왔다. Headgear는 II급 부정교합 중 상악이 과성장된 경우 상악골의 성장 억제를 목적으로 사용하는 구외장치이다. Hotz 장치는 주로 II급 I류 부정교합 환자에서 cervical headgear와 함께 사용한다. 이 증례 보고는 상악의 과성장과 상악전치의 전향을 가진 3명의 II급 I류 부정교합 환자들에 관한 것이다. 모두 cervical headgear와 Hotz 장치를 이용하여 성장기에 악정형 치료를 시작하였다. cervical headgear와 Hotz 장치를 이용하여 치료한 후, 각 환자의 상황에 맞는 후속 치료를 다음과 같이 시행하였다: 고정식 교정장치, 유지 및 계속적 악정형 치료를 위한 class II activator, 기존의 Hotz 장치를 이용한 유지. 환자들을 악정형 치료하고 각각의 상황에 맞는 후속 치료를 하였으며 돌출된 안모와 상악전치 전향의 개선, 전치부 총생의 개선, 상악골 성장 억제 등 양호한 결과를 얻을 수 있었다.

Keywords

References

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