Dental amalgam controversy satisfactorily countered any safety concerns." Amalgam use is regulated by Health Canada as are all medical treatments and Health Canada has also stated that dental amalgam is not causing illness in the general population. Not all organizations in Canada share this view. In a recent publication, the Canadian Association of Naturopathic Doctors states that "... mercury is the most toxic non-radioactive material on earth, and since it is constantly being released from amalgam, its use should be abandoned. They recommend a gradual detox and chelation therapy over several months to minimize the toxic effects of amalgam fillings. Australia recognizes the
Amalgam (dentistry) problem. This phase has been shown to be the weakest phase in the set amalgam and is subject to corrosion, particularly at the tooth-amalgam interface. In 1962 a new amalgam alloy, called Dispersalloy, was introduced with the addition of a spherical silver-copper eutectic particle to the traditional lathe-cut AgSn particle in a ratio of 1:2. The mixture of these two types of particles is known as admix alloy. The benefits of this alloy was to strengthen the set amalgam and reduce the γ phase (SnHg). The increased copper in the silver-copper eutectic reacted preferentially with tin so that SnHg could