過去矯正器都是用金屬綁線(ligature wire)或橡皮圈(O-ring)，把預設好理想牙弓形態的鎳鈦金屬線固定在矯正器上，藉此來拉動牙齒而使牙齒產生移位動作 ... ... <看更多>

The goal is to have the teeth move with the wire, so to do that, we tie the teeth into the main wire. We can do this in three main ways: 1] ... ... <看更多>