<<Disclaimer: Verify this information before applying it to your situation.>> I went to the dentist yesterday and asked the dental assistant if amalgam or the compound used to polish teeth contain gluten. The dental assistant, who is a celiac herself, said that all the compounds they use are gluten-free. She indicated there would be no point in adding a gluten filler to any of these products. Just thought I'd add my 2 cents worth from the Canadian perspective. Arlene Karpan Gluten-free in the breadbasket of the world