Oral medicine (sometimes termed dental medicine, oral and maxillofacial medicine or stomatology) is a specialty focused on the mouth and nearby structures. It lies at the interface between medicine and dentistry.
The specialty is defined within Europe under Directive 2001/19/EC.
The importance of the mouth in medicine has been recognized since the earliest known medical writings. For example, Hippocrates, Galen and others considered the tongue to be a "barometer" of health, and emphasized the diagnostic and prognostic importance of the tongue. However, oral medicine as a specialization is a relatively new subject area. It used to be termed "stomatology" (- + ). In some institutions, it is termed "oral medicine and oral diagnosis". American physician and dentist, Thomas E Bond authored the first book on oral and maxillofacial pathology in 1848, entitled "A Practical Treatise on Dental Medicine". The term "oral medicine" was not used again until 1868.Jonathan Hutchinson is also considered the father of oral medicine by some. Before becoming its own specialty in the United States, oral medicine was historically once a subset of the specialty of periodontics, with many periodontists achieving board certification in oral medicine as well as periodontics.
Oral medicine is concerned with clinical diagnosis and non-surgical management of non-dental pathologies affecting the orofacial region (the mouth and the lower face).
Many systemic diseases have signs or symptoms that manifest in the orofacial region. Pathologically, the mouth may be afflicted by many cutaneous and gastrointestinal conditions. There is also the unique situation of hard tissues penetrating the epithelial continuity (hair and nails are intra-epithelial tissues). The biofilm that covers teeth therefore causes unique pathologic entities known as plaque-induced diseases.