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Healthy Oral Lifestyle Behaviours Are Associated with Favourable Composition and Function of the Oral Microbiota

1
Faculty of Health Sciences, Bristol Dental School, University of Bristol, Bristol BS1 2LY, UK
2
Department of Odontology, Umeå University, 901 87 Umeå, Sweden
3
Medical Research Council Integrative Epidemiology Unit, Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2BN, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Georgios N. Belibasakis
Microorganisms 2021, 9(8), 1674; https://doi.org/10.3390/microorganisms9081674
Received: 18 June 2021 / Revised: 28 July 2021 / Accepted: 2 August 2021 / Published: 6 August 2021
(This article belongs to the Section Environmental Microbiology)
Modifiable lifestyle interventions may influence dental disease by shifting the composition of the oral microbiota. This study aimed to test whether lifestyle traits are associated with oral microbiota composition and function. Swedish volunteers, aged 16 to 79 years, completed a lifestyle traits questionnaire including lifestyle characteristics and oral health behaviours. Bacterial 16S rDNA amplicons were sequenced and classified into genera and species, using salivary DNA. Microbiota functions were predicted using Phylogenetic Investigation of Communities by Reconstruction of Unobserved States and the KO Database of Molecular Functions by ortholog annotation. Tests for association used partial least squares and linear regression analysis with correction for multiple testing. The main analysis included 401 participants and 229 common bacterial species (found in ≥10% of the participants). The overall microbiota composition was strongly associated with questions “do you think caries is a disease?” and “do you use floss or a toothpick?”. Enriched relative abundance of Actinomyces, Campylobacter, Dialister, Fusobacterium, Peptidophaga and Scardovia genera (all p < 0.05 after adjustment for multiple testing), and functional profiles showing enrichment of carbohydrate related functions, were found in participants who answered “no” to these questions. Socio-demographic traits and other oral hygiene behaviours were also associated. Healthier oral microbiota composition and predicted functions are found in those with favourable oral health behaviours. Modifiable risk factors could be prioritized for possible interventions. View Full-Text
Keywords: oral behaviour; lifestyle; oral microbiome oral behaviour; lifestyle; oral microbiome
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MDPI and ACS Style

Hallang, S.; Esberg, A.; Haworth, S.; Johansson, I. Healthy Oral Lifestyle Behaviours Are Associated with Favourable Composition and Function of the Oral Microbiota. Microorganisms 2021, 9, 1674. https://doi.org/10.3390/microorganisms9081674

AMA Style

Hallang S, Esberg A, Haworth S, Johansson I. Healthy Oral Lifestyle Behaviours Are Associated with Favourable Composition and Function of the Oral Microbiota. Microorganisms. 2021; 9(8):1674. https://doi.org/10.3390/microorganisms9081674

Chicago/Turabian Style

Hallang, Shirleen, Anders Esberg, Simon Haworth, and Ingegerd Johansson. 2021. "Healthy Oral Lifestyle Behaviours Are Associated with Favourable Composition and Function of the Oral Microbiota" Microorganisms 9, no. 8: 1674. https://doi.org/10.3390/microorganisms9081674

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