Cited by 25Oral microbiology and periodontitis researchGut microbiota and healthDental Health and Care Utilization

Effect of Dietary Fiber on the Composition of the Murine Dental Microbiome

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Sedghi, Lea, Byron, Craig, Jennings, Ryan, Chlipala, George E., Green, Stefan J., Silo-Suh, Laura·2019·Dentistry Journal

Abstract

The oral cavity houses a diverse consortium of microorganisms, heavily influenced by host diet, that can mediate dental health and disease. While the impact of dietary carbohydrates to the dental microbiome has been well-documented, the effect of fiber as a mechanical influence on the dental microbiome is unexplored. We performed 16S rRNA gene analysis to investigate the response of the dental microbiome to the presence of increased fiber in terms of microbial taxonomic abundance and diversity. Dental microbial community structure was significantly different in mice fed a diet supplemented with increased fiber and/or sugar. Fiber significantly affected measures of beta diversity at the phylum and genus levels, and a strong interactive effect on alpha diversity was observed between sugar and fiber at the phylum level. The addition of fiber also induced significant variation in relative taxonomic abundance. This study demonstrates that fiber can promote significant variations in the mouse dental microbiome.

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Crossref · 10.3390/dj7020058

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  • Addition of dietary fiber as a mechanical influence in the oral cavity prompted significant changes to the murine dentogingival microbiota.

    “A study by Sedghi and colleagues278 found that the addition of dietary fiber as a mechanical influence in the oral cavity prompted significant changes to the murine dentogingival microbiota.”
  • The most significant changes influenced by dietary fiber occurred in the presence of sugar compared with sugar alone.

    “Interestingly, this study found that the most significant changes influenced by dietary fiber occurred in the presence of sugar compared with sugar alone.”
  • Addition of fiber led to a decrease in Corynebacterium species, which are recognized as a cornerstone of oral biofilm formation.

    “Moreover, the addition of fiber led to a decrease in Corynebacterium species, which are recognized as a cornerstone of oral biofilm formation.”
  • When combined with sucrose, fiber significantly increased species richness, compared with a decrease in the Firmicutes to Bacteroides ratio prompted by a sucrose-only diet.

    “When combined with sucrose, fiber significantly increased species richness, compared with a decrease in the Firmicutes to Bacteroides ratio prompted by a sucrose‐only diet.”

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Research works printed but not linked: 3

  1. [13]Theilade E. Factors controlling the microflora of the health mouth Human Microbial Ecology Hill M.J. Marsh P.D. CRC Press Boca Raton, FL, USA 1990 2 48
  2. [17]Logan E.I. Oral cleansing by dietary means: Results of six-month studies Proceedings of the Companion Animal Oral Health Conference Lawrence, KS, USA 1–3 March 1996 11 15
  3. [18]Logan E.I. Boyce E.N. Berg M. Effects of dietary form on plaque and calculus and gingival health in cats—Methodology and results Proceedings of the World Veterinary Dental Congress Birmingham, UK 1–3 April 1997 28 32

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Authors
Sedghi, L., Byron, C., Jennings, R., Chlipala, G. E., Green, S. J., & Silo-Suh, L.
Affiliations
  • Mercer University (US)
  • Frostburg State University (US)
  • University of Illinois Chicago (US)
Corresponding author
Silo-Suh, Laura
Venue
Dentistry Journal
Publisher
MDPI AG
Published
2019-06-01
Volume
7
Issue
2
Pages
58
ISSN
2304-6767 (ISSN-L)
OpenAlex
W2947471247
Cited by
25
References
48
Citations by year
2026: 5 · 2025: 3 · 2024: 6 · 2023: 1 · 2022: 4 · 2021: 6
FWCI
2.89
Type
journal article
Language
en
Open access
Locations
  • Dentistry Journal (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health (UL1TR002003)
  • National Institute of Dental and Craniofacial Research (T32DE007306)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Dentistry › Periodontics › Dental Health and Care Utilization
Keywords
dietary fiber, oral microbiota, sugar, microbial diversity, beta diversity, alpha diversity, microbial community structure, host diet, dental health, mice

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