| 摘要 |
A dental tool composed of molded plastic for gingival retraction includes an elongate handle and a horseshoe-shaped guard at an operative end of the handle. The guard includes a pair of downward extending elongate legs and a curved neck interconnects the handle and the guard. A wedge extends rearwardly from a top portion of the guard such that the legs of the guard lie along the surface of a tooth when the wedge is inserted between the gingiva and the root of the tooth at the gingival margin. The gingiva is captured between the wedge and the neck portion when the gingiva is in the retracted position. The legs include forward extending surfaces to form a shield between the area of treatment, interproximal gingival tissue, and the laterally adjacent teeth.
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