title: The helical tantalum screw, when and where to use it.
mesh_terms: D001672:Biocompatible Materials; D001863:Bone Screws; D003758:Dental Implantation, Endosseous / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D013635:Tantalum
chemical_list: D001672:Biocompatible Materials; D013635:Tantalum