Lupus erythematosus is a multisystem disorder, One of its defining fea
tures is oral ulceration. In addition to oral ulcers, cheilitis may oc
cur, Sjogren's syndrome is an autoimmune disorder of exocrine glands t
hat causes a decrease in salivary gland function. This results in symp
toms of xerostomia, which can be complicated by caries, Scleroderma ha
s rare oral manifestations, which include a decrease in the maximal or
al aperture and mat-like telangiectasias.