There are three types of biocompatibility (see below). When we test for biocompatibility for patients, we are testing for immunologic biocompatibility (click).
1) General biocompatibility: These materials are toxic or poisonous to cells in every person.
2) Bio-energetic biocompatibility: Some health care providers believe in meridians in the body. Meridians are pathways of energy flow in the body. There is no physically verifiable anatomical or histological basis for the existence of these pathways (This does not mean it does not exist. It means that at this point we cannot verify it by physical testing at this point). Nonetheless, according to health care practitioners who believe in this, certain energy incompatible dental materials can interfere with the healthy energy flow of these meridians and make someone less healthy.
3) Immunologic biocompatibility: This is the compatibility of a dental material on an immunological level. This type of biocompatibility deals with hypersensitivity reactions of the immune system (click).