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Toyama, Naoki

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Oral Supplementation of Bacillus subtilis Attenuated Alveolar Bone Loss in a Mouse Model of Ligature-Induced Periodontitis
FullText URL fulltext.pdf
Author Zhang, Yixuan| Toyama, Naoki| Nurhamim, Mohammad| Nakahara, Momoko| Fukuhara, Daiki| Maruyama, Takayuki| Ekuni, Daisuke|
Keywords Bacillus subtilis periodontitis alveolar bone loss gut microbiota intestinal morphology vitamin D mouse model
Published Date 2026-08-07
Publication Title Dentistry Journal
Volume volume14
Issue issue8
Publisher MDPI AG
Start Page 494
ISSN 2304-6767
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2026 by the authors.
File Version publisher
DOI 10.3390/dj14080494
Related Url isVersionOf https://doi.org/10.3390/dj14080494
Oral Health-Related Quality of Life and Self-Reported Oral Health Status Are Associated with Change in Self-Reported Depression Status: A Cohort Study
FullText URL fulltext.pdf
Author Takeuchi, Noriko| Maruyama, Takayuki| Toyama, Naoki| Katsube, Yuzuki| Tabuchi, Takahiro| Ekuni, Daisuke|
Keywords oral health-related quality of life depression status cohort study
Published Date 2026-01-04
Publication Title Journal of Clinical Medicine
Volume volume15
Issue issue1
Publisher MDPI AG
Start Page 376
ISSN 2077-0383
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2026 by the authors.
File Version publisher
DOI 10.3390/jcm15010376
Related Url isVersionOf https://doi.org/10.3390/jcm15010376
Association Between Chewing Status and Steatotic Liver Disease in Japanese People Aged ≥50 Years: A Cohort Study
FullText URL fulltext.pdf
Author Iwai, Komei| Ekuni, Daisuke| Azuma, Tetsuji| Yonenaga, Takatoshi| Tabata, Koichiro| Toyama, Naoki| Kataoka, Kota| Maruyama, Takayuki| Tomofuji, Takaaki|
Keywords oral health liver diseases longitudinal studies mastication physical examination surveys and questionnaires
Published Date 2025-06-11
Publication Title Healthcare
Volume volume13
Issue issue12
Publisher MDPI AG
Start Page 1399
ISSN 2227-9032
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2025 by the authors.
File Version publisher
PubMed ID 40565426
DOI 10.3390/healthcare13121399
Web of Science KeyUT 001514847500001
Related Url isVersionOf https://doi.org/10.3390/healthcare13121399
Effects of Trehalose on Halitosis: A Randomized Cross-Over Clinical Trial
FullText URL fulltext.pdf
Author Miyai, Hisataka| Tomofuji, Takaaki| Mizuno, Hirofumi| Morita, Manabu| Nakahara, Momoko| Kataoka, Kota| Sumita, Ichiro| Uchida, Yurika| Toyama, Naoki| Yokoi, Aya| Yamanaka-Kohno, Reiko| Takeuchi, Noriko| Maruyama, Takayuki| Ekuni, Daisuke|
Keywords halitosis trehalose oral dryness cross-over study randomized trial
Published Date 2025-03-13
Publication Title Healthcare
Volume volume13
Issue issue6
Publisher MDPI
Start Page 619
ISSN 2227-9032
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2025 by the authors.
File Version publisher
PubMed ID 40150469
DOI 10.3390/healthcare13060619
Web of Science KeyUT 001452703300001
Related Url isVersionOf https://doi.org/10.3390/healthcare13060619
Nutrients Associated with Sleep Bruxism
FullText URL fulltext.pdf
Author Toyama, Naoki| Ekuni, Daisuke| Fukuhara, Daiki| Sawada, Nanami| Yamashita, Miho| Komiyama, Momoe| Nagahama, Takahiko| Morita, Manabu|
Keywords sleep bruxism dietary fiber electromyography young adult biostatistics nutrition assessment
Published Date 2023-03-31
Publication Title Journal of Clinical Medicine
Volume volume12
Issue issue7
Publisher MDPI
Start Page 2623
ISSN 2077-0383
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2023 by the authors.
File Version publisher
PubMed ID 37048706
DOI 10.3390/jcm12072623
Web of Science KeyUT 000968798300001
Related Url isVersionOf https://doi.org/10.3390/jcm12072623
The Impact of Oral Health Behaviors, Health Belief Model, and Absolute Risk Aversion on the Willingness of Japanese University Students to Undergo Regular Dental Check-Ups: A Cross-Sectional Study
FullText URL fulltext.pdf
Author Sumita, Ichiro| Toyama, Naoki| Ekuni, Daisuke| Maruyama, Takayuki| Yokoi, Aya| Fukuhara, Daiki| Uchida-Fukuhara, Yoko| Nakahara, Momoko| Morita, Manabu|
Keywords oral health behaviors health belief model absolute risk aversion
Published Date 2022-10-26
Publication Title INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
Volume volume19
Issue issue21
Publisher MDPI
Start Page 13920
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2022 by the authors.
File Version publisher
PubMed ID 36360797
DOI 10.3390/ijerph192113920
Web of Science KeyUT 000882599400001
Related Url isVersionOf https://doi.org/10.3390/ijerph192113920
Features of the oral microbiome in Japanese elderly people with 20 or more teeth and a non-severe periodontal condition during periodontal maintenance treatment: A cross-sectional study
FullText URL fulltext.pdf
Author Toyama, Naoki| Ekuni, Daisuke| Yokoi, Aya| Fukuhara, Daiki| Islam, Md Monirul| Sawada, Nanami| Nakashima, Yukiho| Nakahara, Momoko| Sumita, Ichiro| Morita, Manabu|
Keywords oral microbiome elderly people diversity bacteria non-severe periodontal condition
Published Date 2022-10-06
Publication Title Frontiers In Cellular And Infection Microbiology
Volume volume12
Publisher Frontiers Media SA
Start Page 957890
ISSN 2235-2988
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2022 Toyama, Ekuni, Yokoi, Fukuhara, Islam, Sawada, Nakashima, Nakahara, Sumita and Morita.
File Version publisher
PubMed ID 36275030
DOI 10.3389/fcimb.2022.957890
Web of Science KeyUT 000874245900001
Related Url isVersionOf https://doi.org/10.3389/fcimb.2022.957890
Trends in Self-Rated Oral Health and Its Associations with Oral Health Status and Oral Health Behaviors in Japanese University Students: A Cross-Sectional Study from 2011 to 2019
FullText URL fulltext.pdf
Author Nakahara, Momoko| Toyama, Naoki| Ekuni, Daisuke| Takeuchi, Noriko| Maruyama, Takayuki| Yokoi, Aya| Fukuhara, Daiki| Sawada, Nanami| Nakashima, Yukiho| Morita, Manabu|
Keywords self-rated oral health oral health behaviors caries gingivitis oral hygiene oral health behavioral sciences
Published Date 2022-10-20
Publication Title International Journal of Environmental Research and Public Health
Volume volume19
Issue issue20
Publisher MDPI
Start Page 13580
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2022 by the authors.
File Version publisher
PubMed ID 36294160
DOI 10.3390/ijerph192013580
Web of Science KeyUT 000873221100001
Related Url isVersionOf https://doi.org/10.3390/ijerph192013580
Comprehensive Analysis of Risk Factors for Periodontitis Focusing on the Saliva Microbiome and Polymorphism
FullText URL fulltext.pdf
Author Toyama, Naoki| Ekuni, Daisuke| Matsui, Daisuke| Koyama, Teruhide| Nakatochi, Masahiro| Momozawa, Yukihide| Kubo, Michiaki| Morita, Manabu|
Keywords periodontitis microbiota single-nucleotide polymorphisms
Published Date 2021-06-14
Publication Title International Journal of Environmental Research and Public Health
Volume volume18
Issue issue12
Publisher MDPI
Start Page 6430
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2021 by the authors.
File Version publisher
PubMed ID 34198553
DOI 10.3390/ijerph18126430
Web of Science KeyUT 000666031300001
Related Url isVersionOf https://doi.org/10.3390/ijerph18126430
Living with Family Is Directly Associated with Regular Dental Checkup and Indirectly Associated with Gingival Status among Japanese University Students: A 3-Year Cohort Study
FullText URL fulltext.pdf
Author Nakahara, Momoko| Ekuni, Daisuke| Kataoka, Kota| Yokoi, Aya| Uchida-Fukuhara, Yoko| Fukuhara, Daiki| Kobayashi, Terumasa| Toyama, Naoki | Saho, Hikari| Islam, Md Monirul| Iwasaki, Yoshiaki| Morita, Manabu|
Keywords lifestyle dental health behavior oral health oral hygiene gingivitis behavioral sciences
Published Date 2021-01-05
Publication Title International Journal of Environmental Research and Public Health
Volume volume18
Issue issue1
Publisher MDPI
Start Page 324
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2021 by the authors.
File Version publisher
PubMed ID 33466244
DOI 10.3390/ijerph18010324
Web of Science KeyUT 000606664400001
Related Url isVersionOf https://doi.org/10.3390/ijerph18010324
Association between Household Exposure to Secondhand Smoke and Dental Caries among Japanese Young Adults: A Cross-Sectional Study
FullText URL fulltext.pdf
Author Saho, Hikari| Taniguchi-Tabata, Ayano| Ekuni, Daisuke| Yokoi, Aya| Kataoka, Kouta| Fukuhara, Daiki| Toyama, Naoki | Islam, Md Monirul| Sawada, Nanami| Nakashima, Yukiho| Nakahara, Momoko| Deguchi, Junya| Uchida-Fukuhara, Yoko| Yoneda, Toshiki| Iwasaki, Yoshiaki| Morita, Manabu|
Keywords secondhand smoke dental caries permanent dentition young adult
Published Date 2020-11-20
Publication Title International Journal of Environmental Research and Public Health
Volume volume17
Issue issue22
Publisher MDPI
Start Page 8623
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2020 by the authors.
File Version publisher
PubMed ID 33233610
DOI 10.3390/ijerph17228623
Web of Science KeyUT 000594343500001
Related Url isVersionOf https://doi.org/10.3390/ijerph17228623
Relationship between oral hygiene knowledge, source of oral hygiene knowledge and oral hygiene behavior in Japanese university students: A prospective cohort study
FullText URL fulltext.pdf
Author Fukuhara, Daiki| Ekuni, Daisuke| Kataoka, Kota| Taniguchi-Tabata, Ayano| Uchida-Fukuhara, Yoko| Toyama, Naoki | Yoneda, Toshiki| Sugiura, Yoshio| Islam, Monirul| Saho, Hikari| Iwasaki, Yoshiaki| Morita, Manabu|
Published Date 2020-07-23
Publication Title PLoS ONE
Volume volume15
Issue issue7
Publisher Public Library of Science
Start Page e0236259
ISSN 1932-6203
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2020 Fukuhara et al.
File Version publisher
PubMed ID 32702010
DOI 10.1371/journal.pone.0236259
Web of Science KeyUT 000575913700064
Related Url isVersionOf https://doi.org/10.1371/journal.pone.0236259
Caries Increment and Salivary Microbiome during University Life: A Prospective Cohort Study
FullText URL fulltext.pdf
Author Uchida-Fukuhara, Yoko| Ekuni, Daisuke| Islam, Md Monirul| Kataoka, Kota| Taniguchi-Tabata, Ayano| Fukuhara, Daiki| Toyama, Naoki | Kobayashi, Terumasa| Fujimori, Kohei| Sawada, Nanami| Iwasaki, Yoshiaki| Morita, Manabu|
Keywords salivary microbiome sequence analysis young adult dental caries saliva oral health
Published Date 2020-05-25
Publication Title International Journal of Environmental Research and Public Health
Volume volume17
Issue issue10
Publisher MDPI
Start Page 3713
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2020 by the authors.
File Version publisher
PubMed ID 32466124
DOI 10.3390/ijerph17103713
Web of Science KeyUT 000539300900370
Related Url isVersionOf https://doi.org/10.3390/ijerph17103713
Association between Sleep Quality and Duration and Periodontal Disease among University Students: A Cross-Sectional Study
FullText URL fulltext.pdf
Author Islam, Md Monirul| Ekuni, Daisuke| Toyama, Naoki | Taniguchi-Tabata, Ayano| Kataoka, Kota| Uchida-Fukuhara, Yoko| Fukuhara, Daiki| Saho, Hikari| Sawada, Nanami| Nakashima, Yukiho| Iwasaki, Yoshiaki| Morita, Manabu|
Keywords sleep quality sleep duration periodontal disease university students
Published Date 2020-04-27
Publication Title International Journal of Environmental Research and Public Health
Volume volume17
Issue issue9
Publisher MDPI
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2020 by the authors.
File Version publisher
PubMed ID 32349308
DOI 10.3390/ijerph17093034
Web of Science KeyUT 000535745400058
Related Url isVersionOf https://doi.org/10.3390/ijerph17093034
Relationship of Salivary Microbiome with the Worsening of the Periodontal Health Status in Young Adults: A 3-Year Cohort Study
FullText URL fulltext.pdf
Author Islam, Md Monirul| Ekuni, Daisuke| Toyama, Naoki | Kobayashi, Terumasa| Fujimori, Kohei| Uchida, Yoko| Fukuhara, Daiki| Taniguchi-Tabata, Ayano| Kataoka, Kota| Iwasaki, Yoshiaki| Morita, Manabu|
Keywords salivary microbiome periodontal health status oral hygiene cohort study young adults
Published Date 2020-03-09
Publication Title International Journal of Environmental Research and Public Health
Volume volume17
Issue issue5
Publisher MDPI
Start Page 1764
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2020 by the authors.
File Version publisher
PubMed ID 32182740
DOI 10.3390/ijerph17051764
Web of Science KeyUT 000522389200304
Related Url isVersionOf https://doi.org/10.3390/ijerph17051764
Awareness of Clenching and Underweight are Risk Factors for Onset of Crowding in Young Adults: A Prospective 3-Year Cohort Study
FullText URL ijerph16_5_00690.pdf
Author Toyama, Naoki| Ekuni, Daisuke| Taniguchi-Tabata, Ayano| Kataoka, Kota| Yamane-Takeuchi, Mayu| Fujimori, Kohei| Kobayashi, Terumasa| Fukuhara, Daiki| Irie, Koichiro| Azuma, Tetsuji| Iwasaki, Yoshiaki| Morita, Manabu|
Keywords bruxism cohort study malocclusion underweight young adults
Published Date 2019-02-26
Publication Title International Journal of Environmental Research and Public Health
Volume volume16
Issue issue5
Publisher MDPI
Start Page 690
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2019 by the authors
File Version publisher
PubMed ID 30813621
DOI 10.3390/ijerph16050690
Web of Science KeyUT 000462664200015
Related Url isVersionOf https://doi.org/10.3390/ijerph16050690
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