The oral cavity is an important anatomical location with a role in many critical physiologic processes, such as mastication, digestion, respiration, and phonation. It is unique for the presence of exposed hard tissue surrounded by mucosa. The oral cavity might well be thought as window to the body because oral manifestations accompany a wide array of systemic diseases. In many instances, oral involvement precedes the appearance of other symptoms or lesions at other locations. These oral manifestations must be properly recognized if the patient is to receive appropriate diagnosis and referral for further treatment. This article is intended to highlight the lesions of oral mucosa, dentition, salivary glands, facial skeleton, extra-oral skin and other related structures that also involve some systemic diseases.
Oral cavity, Oral manifestations, Systemic diseases
