Ohmori Hiroko, Ono Takashi
Orthodontic Science Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
Orthodontics (Chic.). 2013;14(1):e222-6. doi: 10.11607/ortho.921.
A plate that incorporates a Ti-Ni alloy wire can rapidly correct scissors bite. This article describes its use in the successful treatment of scissors bite. A female patient aged 7 years, 5 months with mixed dentition presented with a Class I molar relationship, Class I skeletal pattern, and average Frankfort-mandibular plane angle. The maxillary right central incisor was in a crossbite. A unilateral posterior scissors bite was also present on the left side. The plate was fitted and prescribed for nighttime wear. Positive overjet was achieved after 1 month of treatment. The posterior scissors bite was corrected after 3 months of treatment, and the midline shift was ameliorated. Because a Ti-Ni wire maintained a weak continuous force, the treatment period was minimized.
一块包含钛镍合金丝的矫治板能快速矫正剪刀式咬合。本文描述了其在成功治疗剪刀式咬合中的应用。一名7岁5个月的女童,处于混合牙列期,磨牙关系为I类,骨骼型为I类,法兰克福下颌平面角正常。上颌右侧中切牙呈反牙合。左侧还存在单侧后牙剪刀式咬合。佩戴该矫治板并规定夜间使用。治疗1个月后实现了正覆盖。治疗3个月后,后牙剪刀式咬合得到矫正,中线偏移得到改善。由于钛镍丝保持着微弱的持续力,治疗周期得以缩短。