| 摘要 |
<p>The dental operating instrument for extracting a tooth has a loop (3, 6, 7) on the ends of a handle (8) which is positioned around the tooth, this loop forming a support for tooth clamping members. At the same time, it forms a fularum for applying leverage to the clamped tooth. The end port (3) of the loop also bridges the side arms (6, 7) and a vertical screw (11) passes through it. This screw carries a curved horizontal strap (10) whose ends (10b, c) can rest on a tooth each side of the tooth to be extracted. The tooth is gripped between a clamping plate (2) one side and the base (3b) of an extension (3) of the opposite side arm (7). This clamping plate is forced inwards by a horizontal screw.</p> |
