| 摘要 |
The present invention relates to an implant detector cover screw comprising: a head (1); an upper recess (2) wherein a recess is provided in the centre of the upper part of the head (1); a lower part (3) wherein a screw thread is provided on the surface below the head (1); and a projection (10,10-1,10-2) provided in the upper part of the head (1). |
