| 摘要 |
A dental instrument for pressing down fillings of amalgam or a different tooth filling material, comprising a head with a through-bore, impact means for axial reciprocal movement in the bore, a handle, the main direction of which includes an angle with the impact direction, and at least one additional head with through-bore and appurtenant impact means adapted to reciprocate axially in the bore of said additional head, the impact direction of each additional impact means including an angle with both the main direction of the handle and with the impact direction of the first impact means, while the impact surfaces of said impact means differ in size, shape, position, etc. |
