| SHORT-TERM EFFECTS OF THE FUNCTIONAL REGULATOR III APPLIED TO ANTERIOR CROSSBITE PATIENTS IN EARLY MIXED DENTITION |
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Se-Eun Woo, Soon-Hyeun Nam, Young-Jin Kim, Hyun-Jung Kim |
| Dept. of Pediatric Dentistry, College of Dentistry, Kyungpook National University |
| 기능성 반대교합을 가진 초기 혼합치열기 어린이에서 FR III를 단기간 장착했을 때의 효과 |
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우세은, 남순현, 김영진, 김현정 |
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경북대학교 치의학전문대학원 소아치과학교실 |
Correspondence:
Hyun-Jung Kim, Tel: 053-600-7201, Email: jungkim@knu.ac.kr
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Received: 20 May 2012 • Accepted: 31 July 2012 |
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| Abstract |
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In case of treating the functional type of anterior cross bite, removing the cause in early stage prevents from turning to skeletal type, leads to perform normal function, and has improved facial appearance. Functional Regulator III (FR III), one kind of the Functional regulator(FR)s suggested by Ro¨lf Fra¨nkel in 1966, applied to patients with the functional and skeletal anterior crossbite in early mixed, and permanent dentition. This appliance improves unbalanced power condition by blocking abnormal muscle-power effect, so that normal growth can be expected. In this case report, favorable results were obtained by selecting clinical cases of children in their early mixed dentition with functional cross bite. 1. FR IIIs were applied to patients with anterior crossbite for 5~6 months. Anterior crossbite patients were corrected favorably, nevertheless they didn't show any horizontal skeletal-changes by buccal shields. 2. Normal occlusion and esthetic facial contour were achieved from dental movement of maxillary and mandibular anterior teeth while the mandible rotates to posterior and inferior direction. |
| Key Words:
Anterior crossbite, FR Ⅲ, Early mixed dentition, Short-term effect |
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