orthogenics

例句：

1. 1.Orthodontic treatment is essential for maintaining good oral health.
   正畸治疗对于保持良好口腔健康至关重要。
2. 2. The orthodontist used a special device to straighten the teeth.
   正畸医生使用了一种特殊设备来矫正牙齿。
3. 3. Orthodontic braces are commonly used to correct misaligned teeth.
   正畸牙套通常用于纠正错位的牙齿。