Ulceration is a breakdown
or discontinuity of the epithelium. The common causes of oral ulcerations are
trauma from a malpositioned tooth, a sharp tooth cusp, broken restorations,partial denture clasp arms, and orthodontic brackets.
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| Pemphigus |
Lesions produced in this
fashion are called traumatic ulcerations. Various autoimmune diseases such as
pemphigus, lupus erythematosus, and mucous membrane pemphigoid also manifest as
oral ulcerations, including erythema, erosions, and persistent ulcers. On close
oral examination, these ulcerations are observed to have irregular margins. RAU
is considered as the most common oral mucosal lesion of unknown etiology. These
lesions present as recurrent, multiple, small, or ovoid ulcers with yellow
floors and are surrounded by erythematous halo, and commonly appear first in
childhood or adolescence. Minor types of RAU present as round or oval lesions
with a diameter less than 1 cm and heal within 2 weeks. When recurrent
aphthous-like lesion occurs in the middle-aged patient for many years, it is
definitely uncommon. Read more>>>>>>
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