Dry mouth and denture plaque microflora in complete denture and palatal obturator prosthesis wearers. (4th September 2013)

• Record Type: Journal Article
• Authors: Murakami, Mamoru; Nishi, Yasuhiro; Seto, Katsura; Kamashita, Yuji; Nagaoka, Eiichi
• Is Part Of: Gerodontology. Volume 32:Number 3(2015:Sep.)
• Page Start: 188
• Page End: 194
• Publication Date: 2013-09-04
• Subjects: Older people -- Dental care -- Periodicals; 617.60846
• DOI: 10.1111/ger.12073
• Languages: English
• ISSNs: 0734-0664

Abstract

<abstract abstract-type="main" id="ger12073-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="ger12073-sec-0001" sec-type="section"> <title>Objective and background</title> <p>The purpose of this study was to investigate the association of dry mouth with denture plaque microflora in patients with palatal obturator prostheses from the viewpoint of infection control.</p> </sec> <sec id="ger12073-sec-0002" sec-type="section"> <title>Methods</title> <p>Thirty palatal obturator prosthesis wearers were compared with 30 healthy maxillary complete denture wearers. Dry mouth was examined using a moisture‐checking device and was diagnosed by the measured moisture levels. Denture plaque was collected by rubbing the mucosal surface of the denture with a swab; collected microorganisms were cultured and identified using culture‐dependent methods. The number of colonising microorganisms and prevalence of microorganisms were examined according to the type of prostheses and presence of dry mouth using nonparametric tests and frequency analysis (α = 0.05).</p> </sec> <sec id="ger12073-sec-0003" sec-type="section"> <title>Results</title> <p>The prevalence of <italic>Candida</italic> spp. and <italic>Staphylococcus</italic> spp. in palatal obturator prostheses was significantly higher than that in complete dentures. In palatal obturator prostheses, the total number of colonising microorganisms showed no significant differences between the groups with and without dry mouth on each side of the prostheses. However, the prevalence of <italic>Candida</italic> spp. and <italic>Staphylococcus</italic> spp. in the group with dry mouth was significantly higher than that in the group without dry mouth. The number of microorganisms and moisture levels of palatal obturator prosthesis wearers showed a significantly negative correlation with <italic>Candida</italic> spp. and <italic>Staphylococcus</italic> spp., but a positive correlation with <italic>Neisseria</italic> spp.</p> </sec> <sec id="ger12073-sec-0004" sec-type="section"> <title>Conclusion</title> <p>It was concluded that palatal obturator prosthesis wearers with a dry mouth have greater colonisation by <italic>Candida</italic> spp. and <italic>Staphylococcus</italic> spp. than do complete denture wearers.</p> </sec> </abstract>