Diseases of the Oral Cavity

Abstract

The diseases of the oral cavity encompass those of the skin, systemic disorders and those of the oral cavity itself. The mucosa of the oral cavity is continuous with the skin externally and with the oropharynx and nasopharynx internally. The normal morphological pattern of the oral integument is not different from the cutaneous element. The absence of the cornified epithelium and prominence of the vascular network in the underlying connective tissue results in the normal pinkish-red colour of the lining mucosa. Lesions of the mucous membrane are more difficult to diagnose due less contrast of colour in inflammation. Vesicles and bullae rupture easily to form erosions, grouping and distribution is less marked than in the skin.