| 摘要 |
The present invention relates to an orthodontic appliances, particularly a bracket, comprising a base portion adapted for bonding to a surface of a tooth, a body portion extending from the base portion and having an archwire receiving means having a first part ( 3 ) which has at least a first dimension substantially adapted to receive a portion of an archwire ( 4 ) and having a second part comprising a narrowing portion ( 2 ) having a second dimension substantially more narrow than the first dimension. |
