Apparatus for preventing mercury contamination

摘要

The invention is an apparatus for preventing mercury contamination during such processes as removing excess mercury from dental silver amalgam, mulling dental silver amalgam, and loading dental silver amalgam into a dispenser. The apparatus comprises a material permeable by free mercury under pressure and impermeable by dental silver amalgam. One surface of this material is enclosed by a flexible covering impermeable by either free mercury or mercury vapor. One or more voids are provided between the material and the covering for the purpose of retaining any excess mercury squeezed through the cloth. Means for enhancing retention of mercury in the void or voids may be provided.