| 摘要 |
An orthodontic implant device is provided including a head portion (4), engagement means (14, 16) provided on or associated with an upper surface (6) of the head portion or a neck portion to allow an insertion instrument to engage therewith in use and a body portion (10) extending from a lower surface of the head portion. At least one recess or undercut (21) is provided substantially internally of the head portion. |
