Subprosthetic stomatitis is the  inflammation of the oral mucosa in contact with the prosthesis and mainly affects older adults, due to the  changes that occur in the oral cavity over time. This condition becomes an oral health problem with systemic implications, since diabetes mellitus  triggers a wide variety of oral disorders that complicate the oral and general health of patients. Objective. To collect updated information regarding  subprosthetic stomatitis in older adults with type 2 diabetes mellitus. Methods. This work is the result of a bibliographic search of articles in English and Spanish, published in the last 5 years. The exploration was carried out in health databases, such as Scopus or PubMed, and was supported by the Google Scholar search engine. In addition, visits were made to relevant websites, such as the World Health Organization (WHO), the International Diabetes...