Holistic dentistry (biologic dentistry), is an alternative holistic approach that uses non-toxic restorative materials for dental work.
Traditional dentistry considers only the areas above the neck where as, holistic dentistry looks at the patient as a whole system and how the mouth relates to the rest of the body. mercury (amalgam) fillings have the harmful effects when placed as an implant in the body.
 

Dentist Weston A. Price, a former director of research for the American Dental Association, conducted research that involved implanting teeth from the root canals of individuals with symptoms of severe heart problems and kidney disease under the skin of healthy rabbits
One of the article published in the Journal of the American Medical Association, Price claimed that, the degenerative diseases as heart troubles, kidney and bladder disorders, arthritis, rheumatism, mental illness, lung problems, and several kinds of bacterial infections arise from root canal therapy, or endodontics. In Holistic dentistry Most holistic dentists emphasize wellness and preventive care while avoiding silver-mercury fillings.

A holistic dentist uses physiologic and electronic methods to locate areas of chronic disease that are difficult to locate by current standard methods.
The benefits of holistic dentistry are said to be the result of its incorporation of hypnosis, homeopathy, aromatherapy, nutrition, and herbology.