For many years, Drs. David and Cameron MacLean have studied an area of dentistry called biologics. This field is what some people call “holistic or alternative” health care. The issues of toxicity of mercury fillings, fluoride, root canal toxicity, and “jaw cavitations” are controversial in the profession, but have been gaining increased attention in recent times. Another fascinating subject in biologics is the field of bio-energetics. Each tooth in your mouth intersects with an energy meridian in the Chinese system of medicine.