Røntgenstråleuigennemtrængeligt plast

摘要

A plastic article having heavy metal particles uniformly dispersed throughout the plastic article to produce a plastic article that has substantially the same x-ray image as a metal with one embodiment of the plastic article forming a solid tooth implant covered with a flowable gutta-percha filler materiel for insertion into the root canal of a tooth wherein a photoshadowgraph of a tooth containing the solid tooth implant and a solidified gutta-percha covering appears as a single image with the preferred mixture for the solid implant composition consists of about 50 % by weight of a polymer plastic pellets and the balance about 50% by weigh of heavy metal particles selected from the group consisting of tungsten and tantalum particles.