| 摘要 |
The present invention provides an orthodontic device for examining the position of a dental root, comprising: a work unit, the cross sectional area of which decreases toward a free end, and the cross section of which is non-circularly formed by a part removed from a circular shape, so as to minimize damage to gums when penetrating into the gums between teeth; a handle unit, which is coupled to a fixed end facing the free end of the work unit and disposed toward a different point from the free end; and a coupling unit, which is disposed between the work unit and the handle unit and configured to fix the work unit to the handle unit. |
