| 摘要 |
An orthodontic bracket (1) comprising a bracket base (2) able to be secured to the face of a tooth, a body (3) secured to said bracket base (2) and provided with a recess or through slot (4) able to receive an orthodontic wire, and tightening means (8) to block said orthodontic wire within said slot (4) is characterized in that said tightening means (8) is able to perform its function with controlled intensity varying between a maximum value at which said orthodontic wire is blocked within said slot (4) and a minimum value at which said orthodontic wire is completely free to slide within said slot (4). |
