악간 압축스프링을 이용한 II급 대구치 관계의 개선
Correction of Class II molar relation using intermaxillary compression spring
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초록
Intermaxillary compression spring is a kind of non-compliance appliance used for correction of Class II molar relation. In these case reports, Class II molar relations were corrected by intermaxillary compression springs such as Twin Force Bite Corrector and Forsus. The effects of intermaxillary compression spring were lingual tipping and extrusion of upper incisors, distal tipping of upper molars, labial tipping of lower molars, and mesial movement of lower molars, thus causing backward rotation of the occlusal plane and slight backward rotation of the mandible. These effects are similar to the effects of Class II elastics. Therefore, intermaxillary compression spring should be used with the same precautions of Class II elastics. In these case reports, Class I molar relation and normal overjet and overbite were achieved without patient compliance using intermaxillary compression springs.
Abstract
Intermaxillary compression spring is a kind of non-compliance appliance used for correction of Class II molar relation. In these case reports, Class II molar relations were corrected by intermaxillary compression springs such as Twin Force Bite Corrector and Forsus. The effects of intermaxillary compression spring were lingual tipping and extrusion of upper incisors, distal tipping of upper molars, labial tipping of lower molars, and mesial movement of lower molars, thus causing backward rotation of the occlusal plane and slight backward rotation of the mandible. These effects are similar to the effects of Class II elastics. Therefore, intermaxillary compression spring should be used with the same precautions of Class II elastics. In these case reports, Class I molar relation and normal overjet and overbite were achieved without patient compliance using intermaxillary compression springs.
참고문헌 (5)
- Altuğ-Ataç AT, "Skeletal Class II treatment with Twin Force Bite Corrector: case reports", World J Orthod, 9, pp.7~17 (2008)
- Jones G, "Class II non-extraction patients treated with the Forsus Fatigue Resistant Device versus intermaxillary elastics", Angle Orthod, 78, pp.332~328 (2008)
- Ritto AK, "Fixed functional appliances--trends for the next century", Funct Orthod, 16, pp.22~39 (1999)
- Jung MH, "Class II treatment: when and how", Korean J Clin Orthod, 10, pp.18~38 (2011)
- Rothenberg J, "Class II correction with the Twin Force Bite Corrector", J Clin Orthod, 38, pp.232~240 (2004)