Method of making selenium-containing amalgam alloys for dental restoration

摘要

Selenium-containing amalgam alloys for dental restoration comprises 0. 1-50% by weight of any one of the following alloy powders (A) , (B) and (C) mixed with 50-99.9% by weight of the following amalgam alloy powders (D). PP(A): Silver alloy powders containing no less than 50% by weight of silver and 0.01-10% by weight of selenium, PP (B): Copper alloy powders containing no less than 50% by weight of copper and 0.01-5% by weight of selenium,PP (C): Alloy powders mix of (A) with (B) wherein the total amount of silver and copper is adjusted to no less than 50% by weight, and the amount of selenium to 0. 01-10% by weight, andPP(D): Silver-tin- copper amalgam alloy powders.PPAt least one of the any one of (A), (B) and (C) and (D) may be pre-amalgamated with mercury in an amount of no higher than 3% by weight based on the total weight thereof.