Terapia fotodinâmica no tratamento da queilite angular – relato de caso

Resumo (EN)

Introduction – The angular cheilitis is a clinical description for the region of injury in the labial commissure, with unilateral or bilateral involvement, which may present flaking, disruption of the epithelial tissue, exposing the conjunctive tissue and causing algia and the etiologic agent is the Candida fungus and usually the albicans type. As a multifactorial disease in its development several predisposing factors may play an important role, as the irritating action of drugs, loss of the vertical dimension, the use of dental prostheses, xerostomia, salivary accumulation, immunosuppression in several forms as in special care patients and/or HIV+ ones. In these individuals it also serves to highlight the failure of the antiretroviral therapy and/or increased immunosuppression. Facing the limitations of conventional therapies for the treatment of oral candidiasis even in cases of resistance of fungi to the medications imposed other forms of treatment should be instead indicated. This article highlights the use of the photodynamic therapy in the treatment of candidiasis, as an effective alternative form of treatment, consisting in the association of the low-intensity laser to the blue methylene photosensitizer, applied on the angular cheilitis.