| 摘要 |
PURPOSE: To isolate a dental working area inside a mouth without damaging the tissue of teeth or surrounding, gum sections by providing an L-shaped plastic member having a flat bottom face section and a side face section in a form suited to the side part of a tooth, and forming a hole at the side face section through that side face section. CONSTITUTION: A clamp 2 is composed of a side face section 22 and a bottom face section 8. A fixing hole 30 is arranged at the side face section 22 and supports coupling to a fixed face 10 of a tooth 6. The bottom face section 8 is provided with holes one or more for fixing a ligation member 20 or the like to the clamp. The bottom face section 8 is provided with a radiation non- permeable tub 60 and supports the detection of the clamp in case the clamp is unexpectedly swallowed down. Before coupling the clamp 2, a rubber dam 4 covers the tooth through an opening especially provided on the rubber dam. These openings are made smaller than the real diameter of the tooth so as to be elastically and tightly fitted around the tooth. |
