March 2012

Volume 29, Issue 1

Association of hyposalivation with oral function, nutrition and oral health in community-dwelling elderly Thai

Authors: P. Samnieng M. Ueno K.Shinada T. Zaitsu F.A.C. Wright Y. Kawaguchi
doi: 10.1922/CDH_2690Ueno07

Abstract

Objectives: This study was to analyze the association of hyposalivation with oral function, nutritional status and oral health in communitydwelling elderly Thai. Method: The subjects were 612 elderly people (mean age = 68.8, SD 5.9 years). Oral function (tasting, speaking, swallowing and chewing) and Mini Nutritional Assessment (MNA) were evaluated. Oral examination investigated teeth and periodontal status. Both unstimulated and stimulated whole saliva were collected for 5 minutes. Results: Among all subjects, 14.4 % were classified within the hyposalivation. Hyposalivation was associated with gender, systemic disease, medication, and smoking. Subjects within the hyposalivation group had a higher number of decayed teeth and a higher prevalence of periodontitis than the normal salivation group (p<0.05). The hyposalivation group also had a lower number of teeth present and a lower mean MNA score than the normal salivation group (p<0.05). Logistic regression analysis showed that hyposalivation in both dentate and edentulous subjects was significantly associated with tasting, speaking, swallowing and chewing. Conclusion: This study suggested that hyposalivation is a risk factor not only for dental caries and periodontal disease but also for taste disturbances, speaking problems, swallowing problems, poor chewing ability and malnutrition. Monitoring salivary flow is an important measure in the care of older people. Key words: Hyposalivation, Oral Health, Oral Function, Nutrition, Elderly.

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