| 摘要 |
Orthodontic braces include at least one thread 2 and at least one tightener 3, wherein the thread 2 is wound around one or more teeth “D” and is appropriately tensioned by the tightener 3, so as to exert at least one force on the one or more teeth “D” in order to treat malocclusions, labioversions, and mandibular regressions. |
