Dermatomyositis: a contemporary review for oral health care providers.

Dermatomyositis (DM) is an autoimmune muscle disorder characterized by skin rashes and progressive muscle weakness. This disease is a subset of the idiopathic inflammatory myopathies (IIM) and affects both children and adults. Increased incidence of malignancy has been observed in adult DM, making early diagnosis, treatment, and monitoring crucial. In the past, limitations of these diagnostic criteria and classifications often made it difficult to identify the disease in the early stages. However, in recent years a new understanding of the pathogenesis and clinical features of DM has developed, which enables clinicians to distinguish DM from other autoimmune disorders and other subsets of IIM. Many signs and symptoms of DM involve the orofacial regions. This paper reviews and updates the disease process, orofacial manifestations, and dental considerations for patients with DM. Understanding new knowledge of DM helps oral health care providers coordinate care for patients with this disease.