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Clinical Science The Prevalence and Significance of Yeasts in Persons Wearing Complete Dentures with Soft-lining Materials
P.S. Wright
The London Hospital Medical College Dental School, Turner Street, London E1 2AD, England
P. Clark
The London Hospital Medical College Dental School, Turner Street, London E1 2AD, England
J.M. Hardie
The London Hospital Medical College Dental School, Turner Street, London E1 2AD, England
Fifty-three persons wearing soft-lined mandibular dentures and heat-cured acrylic-resin maxillary dentures were studied, using imprint cultures, to determine the isolation frequency and density of colonization of denture and mucosal surfaces by yeasts. Yeasts were isolated from 35 (66%) of the persons studied. Nine species of Candida and one each of Trichosporon and Saccharomyces were identified. Candida albicans, occurring either alone or together with another strain, was identified in 66% of the isolates and was associated with a higher mean density/cm 2 than that of other strains. An association between the method of denture cleaning, denture hygiene, and smoking habits and the isolation of yeasts was demonstrated, but a similar association could not be demonstrated with the sex of the person, denture-wearing habits, type and condition of the soft lining, or the clinical appearance of the mandibular denture-bearing mucosa.
Although yeasts are more likely to colonize soft-lining materials than the fitting surface of conventional lower dentures, their presence did not significantly affect the soft-lining material. Further, the increased isolation of yeasts on the fitting surface of the soft-lined mandibular denture was not associated with an increased incidence of inflammatory changes in the mandibular denture-bearing mucosa.
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Journal of Dental Research, Vol. 64, No. 2,
122-125 (1985)
DOI: 10.1177/00220345850640020501
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