| 摘要 |
The tooth root passage measurement jig sets a measuring disc, sliding on the instrument stem, to a predetermined penetration depth into the passage. It has a measurement plate with one or more insertion troughs for the disc on the stem, and a measuring scale for the trough. One or more support faces of the trough (3) are formed by a magnetic component holding the disc. There can be a number of these troughs along one edge of the measurement plate (1). |
