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
Alchemy and chemistry in medieval Islam that have come down through the years were preserved as Arabic translations. In considering Islamic sciences as a distinct, local practice, it is important to define words such as "Arabic," "Islamic," "alchemy," and "chemistry." In order to gain a better grasp on the concepts discussed in this article, it is important to come to an understanding of what these terms mean historically. This may also help to clear up any misconceptions regarding the possible differences between alchemy and early chemistry in the context of medieval times. As A.I. Sabra writes in his article entitled, "Situating Arabic Science: Location versus Essence,"