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Oshikohji T.,Section of Preventive and Public Health Dentistry | Shimazaki Y.,Section of Preventive and Public Health Dentistry | Shinagawa T.,Hitachi Yokohama Hospital | Fukui N.,Section of Preventive and Public Health Dentistry | And 3 more authors.
Journal of Occupational Health | Year: 2011

Objectives: Dental caries and periodontal disease are highly prevalent in the Japanese adult population. Oral examination is an effective method to find various oral health problems in their early stages. However, workplace oral examination is not common in Japan. The purpose of this study was to examine the relationship between receiving workplace oral health examination, including oral health instruction, and oral health status in the Japanese adult population. Methods: This study was performed using data from 4,484 Japanese employees aged 35-74 yr. The proportion of teeth with a probing depth (PD) ≥4 mm and the number of decayed teeth were used for periodontal disease and dental caries parameters. The subjects were asked by questionnaire about past experiences with workplace oral health examination. Results: The subjects who received a workplace oral health examination every year had better periodontal health status than those receiving an examination for the first time. The odds ratio for having ≥10% of teeth with PD ≥4 mm in the subjects who received workplace oral health examination every year was 0.63 (p<0.05) after adjustment for age, sex, smoking habits, toothbrushing habits, routine visits to dental clinics, number of missing teeth, and oral hygiene status, in a multivariate, multinomial logistic regression analysis. On the other hand, no significant relationship was found between workplace oral health examination and number of decayed teeth. Conclusions: These results suggest that workplace oral health examination accompanied by oral health instruction may be effective for maintenance of periodontal health.


Sakamoto M.,RIKEN | Li D.,Section of Preventive and Public Health Dentistry | Shibata Y.,Section of Preventive and Public Health Dentistry | Takeshita T.,Section of Preventive and Public Health Dentistry | And 2 more authors.
International Journal of Systematic and Evolutionary Microbiology | Year: 2015

A bacterial strain, designated KUFDS01T, isolated from human saliva was characterized using a polyphasic taxonomic approach that included analysis of physiological and biochemical features, cellular fatty acid profiles and phylogenetic position based on 16S rRNA gene sequence analysis. Cells of the strain were obligately anaerobic, non-pigmented, non-spore-forming, non-motile, Gram-stain-negative rods. Growth of the strain was inhibited on medium containing 20% bile. The 16S rRNA gene sequence analysis showed that the strain was a member of the genus Porphyromonas. Strain KUFDS01T was closely related to Porphyromonas catoniae JCM 13863T (96.6% sequence similarity). An hsp60 gene sequence analysis indicated that strain KUFDS01T was different from P. catoniae JCM 13863T, with a sequence similarity value of 87.8%. The major cellular fatty acids of strain KUFDS01T were C16:0, iso-C15:0, anteiso-C15:0,C18: 2ω6, 9c and C18: 1ω9c. The DNA G + C content of strain KUFDS01T was 57.7 + 0.66 mol%. On the basis of these data, strain KUFDS01T represents a novel species of the genus Porphyromonas, for which the name Porphyromonas pasteri sp. nov. is proposed. The type strain of P. pasteri is KUFDS01T (=JCM 30531T=CCUG 66735T). © 2015 IUMS.

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