Park Young-Chel, Lee Han-Ah, Choi Nak-Chun, Kim Doo-Hyung
Department of Orthodontics, College of Dentistry, Yonsei University, Seoul, South Korea.
Angle Orthod. 2008 Jul;78(4):699-710. doi: 10.2319/0003-3219(2008)078[0699:OBCBIO]2.0.CO;2.
The application of orthodontic miniscrews has simplified the treatment of an anterior open bite by making it more efficient and esthetic. A 19-year-old woman with an anterior open bite was treated by an intrusion of the maxillary posterior teeth using miniscrews. The posterior teeth were splinted on the palatal side with rapid maxillary expansion (RME), and an intrusive force was then applied to the miniscrews on the buccal side. The 3.5 mm anterior open bite was corrected after 5 months of intrusion. As a result, a harmonious facial profile was achieved by a closing mandibular rotation.
正畸微螺钉的应用通过提高效率和美观性简化了前牙开颌的治疗。一名19岁前牙开颌女性患者采用微螺钉压低上颌后牙进行治疗。后牙在腭侧用快速上颌扩弓器(RME)固定,然后在颊侧对微螺钉施加压低力。压低5个月后,3.5mm的前牙开颌得到矫正。结果,通过下颌闭合旋转实现了和谐的面部轮廓。