Dr. Jeffrey Williamson

Speakers at the meeting will include Dr. Nancy Crumpacker, a Portland oncologist; Sandra Duffy, founding member of Consumers for Dental Choice Northwest; Stacy Raffety, a registered nurse who has studied mercury detoxification; and Dr. Jeffrey Williamson, a Lake Oswego, Ore., dentist and member of the International Academy of Oral Medicine and Toxicology, which opposes the use of mercury in amalgam fillings.

Panelists will include Nancy Crumpacker, MD, an oncologist; Sandra Duffy, JD, a lawyer/activist from Consumers for Dental Choice; Stacey Raffety, RN, a nurse, acupuncturist, and naturopath; and Jeffrey Williamson, DMD, a dentist who does not use mercury fillings.