Abstract: The anchorage for dental prosthetics includes a male member which is attachable to a tooth and comprises, in a preferred embodiment, a ball head, and a female member which is attachable to a dental prosthesis. The female member comprises an internal thread and a lamellar insert having a threaded portion for receiving and retaining the ball head, the retention force of the lamellar insert being continuously adjustable by rotation thereof. A female member of this kind with a screwed lamellar insert allows a fine adjustment of the retention of the male member in accordance with the actual conditions.

Abstract: A high gold content dental alloy comprises, on a weight basis, 91 to 99.4% of gold, 0.5 to 3% of at least one metal selected from titanium and tantalum, up to 5% of silver, 0.05 to 1% of iridium and/or tungsten, and up to 1% at least one element selected from the group comprising rhodium, ruthenium, platinum, osmium, iron, molybdenum, niobium and rhenium.