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Open AccessArticle

Relationship of Salivary Microbiome with the Worsening of the Periodontal Health Status in Young Adults: A 3-Year Cohort Study

1
Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
2
Department of Preventive Dentistry, Okayama University Hospital, Okayama 700-8558, Japan
3
Health Service Center, Okayama University, Okayama 700-8530, Japan
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(5), 1764; https://doi.org/10.3390/ijerph17051764
Received: 10 February 2020 / Revised: 5 March 2020 / Accepted: 6 March 2020 / Published: 9 March 2020
(This article belongs to the Special Issue Community Dental Care)
The purpose of this prospective cohort study was to investigate the influence of the salivary microbiome on the worsening of the periodontal health status among Japanese young adults. We assessed the data of systemically healthy and non-smoking young (18–22 years) university students (n = 457) from Okayama University at baseline (2013) and follow-up (2016). The worsening group was defined based on an increase in the percentage of bleeding on probing (%BOP) or an increase in probing pocket depth (PPD) from <4 mm to ≥4 mm. Unstimulated saliva samples were randomly collected from 69 students for microbiome analysis at follow-up. The salivary microbiome was assessed through 16S rRNA metagenomic sequencing. The type of community in the salivary microbiome clustered by statistical analysis and diversity was not significantly associated with the worsening of the periodontal health status in cases of increasing %BOP and PPD (p > 0.05). The prevalence of some species was significantly higher in the worsening group than in the non-worsening group (p < 0.05) in both cases. The worsening of the periodontal health status was associated with some species, but not the type of community and diversity in the salivary microbiome among Japanese young adults. View Full-Text
Keywords: salivary microbiome; periodontal health status; oral hygiene; cohort study; young adults salivary microbiome; periodontal health status; oral hygiene; cohort study; young adults
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MDPI and ACS Style

Islam, M.M.; Ekuni, D.; Toyama, N.; Kobayashi, T.; Fujimori, K.; Uchida, Y.; Fukuhara, D.; Taniguchi-Tabata, A.; Kataoka, K.; Iwasaki, Y.; Morita, M. Relationship of Salivary Microbiome with the Worsening of the Periodontal Health Status in Young Adults: A 3-Year Cohort Study. Int. J. Environ. Res. Public Health 2020, 17, 1764. https://doi.org/10.3390/ijerph17051764

AMA Style

Islam MM, Ekuni D, Toyama N, Kobayashi T, Fujimori K, Uchida Y, Fukuhara D, Taniguchi-Tabata A, Kataoka K, Iwasaki Y, Morita M. Relationship of Salivary Microbiome with the Worsening of the Periodontal Health Status in Young Adults: A 3-Year Cohort Study. International Journal of Environmental Research and Public Health. 2020; 17(5):1764. https://doi.org/10.3390/ijerph17051764

Chicago/Turabian Style

Islam, Md M.; Ekuni, Daisuke; Toyama, Naoki; Kobayashi, Terumasa; Fujimori, Kohei; Uchida, Yoko; Fukuhara, Daiki; Taniguchi-Tabata, Ayano; Kataoka, Kota; Iwasaki, Yoshiaki; Morita, Manabu. 2020. "Relationship of Salivary Microbiome with the Worsening of the Periodontal Health Status in Young Adults: A 3-Year Cohort Study" Int. J. Environ. Res. Public Health 17, no. 5: 1764. https://doi.org/10.3390/ijerph17051764

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