Journal
GERODONTOLOGY
Volume 31, Issue 3, Pages 184-193Publisher
WILEY-BLACKWELL
DOI: 10.1111/ger.12020
Keywords
peeling epithelial membrane; elderly patient; oral hygiene; dry mouth
Funding
- JSPS KAKENHI [24593177]
- Integrated Research Project [10103578]
- [22150501]
- Grants-in-Aid for Scientific Research [24593177, 24792373] Funding Source: KAKEN
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Objective: To determine the causative factor behind the formation of membranous substances in the mouths of elderly patients requiring nursing care. Background: Membranous substances are sometimes observed in the mouths of elderly persons requiring nursing care, and these can lead to bleeding, infection and asphyxiation. Materials and methods: In April 2007, samples were collected from 70 patients at C Hospital, Aichi Prefecture, Japan, who were 65 years or older (median age, 81.1 +/- 7.7 years). Sixteen of the subjects were confirmed to have a membranous substance containing a keratin degeneration product that had been derived from stratified squamous epithelium. The samples were examined microscopically, and the presence of epithelial components was confirmed through immunohistochemical staining with anti-cytokeratin-1 antibodies. Results: Decision tree analysis and logistic regression suggest that the leading contributors to the formation of the membranous substances were the method of ingesting nutrients, dryness of the tongue dorsum and open mouth. These three factors are related to elderly persons requiring nursing care with impaired oral cavity function, and it was suggested that dryness of the oral mucosa was the major factor behind the membrane formation.
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