Abstract

Periodontitis is a common chronic infectious oral disease, which is characterized by gingival inflammation,pocket formation, alveolar bone loss and tooth mobility. Psoriasis is a common chronic inflammatory skin disease, whose pathological features in skin lesions are excessive proliferation of epidermal cells, parakeratosis of the derma, and the infiltration of inflammatory cells. Both periodontitis and psoriasis are closely related to the interleukin(IL)-23/helper T cell 17(Th17)/IL-17 axis in their immunopathological mechanisms. The risk factors of psoriasis include smoking, vitamin D deficiency, obesity, emotional stress, etc, of which most factors are also common risk factors of periodontitis. The present article reviews the research advances in the interaction of the two diseases and their possible common mechanisms from three aspects, i.e. clinical study, IL-23/Th17/IL-17 pathway and common risk factors, which may be helpful to provide new ideas for clinical diagnosis and treatment.

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