| 摘要 |
<p>Orthodontal attachment of the fixed type with the internal surface 12 of its base 11 against the external surface of the teeth of a dental arch for the fixation of a denture comprising a wire 14, said orthodontal attachment 10 having a horizontal slot 13 with which said wire 14 will co-operate and a vertical slot, comprised of a continuous vertical hole 15, which will co-operate with auxiliary accessories such as a straightening spring 17, the horizontal slot 13 being situated in a position intermediate between the base 11 and the vertical slot 15. <IMAGE></p> |
