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Volume 168, Issue 6

Lactobacilli and human dental caries: more than mechanical retention Open Access

Abstract

Lactobacilli have been considered as major contributors to human dental caries for over a century. Recent model studies have shown that when compared to a keystone pathogen of human dental caries, the ability of lactobacilli to form biofilms is poor, although differences exist between the different major species. Further studies using molecular and bioinformatics approaches provide evidence that multiple mechanisms, including adhesin-receptor mediated physical contact with , facilitate the adherence and establishment of lactobacilli on the tooth surface. There is also evidence that under conditions like continuous sugar consumption, weak acids and other antimicrobials such as bacteriocins from lactobacilli can become detrimental to the microbial community, especially those in the proximity. Details on the underlying mechanisms of how different sp. establish and persist in the highly complex microbiota on the tooth surface await further investigation.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): biofilm formation , dental caries , genetic regulation , lactobacillus , oral microecology and Streptococcus mutans
Funding
This study was supported by the:
  • National Institute of Dental and Craniofacial Research (Award DE19452 and DE25348)
    • Principle Award Recipient: ZezhangT. Wen
© 2022 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License.
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2022-06-07
2024-05-11
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Lactobacilli and human dental caries: more than mechanical retention
Microbiology 168, 001196 (2022); https://doi.org/10.1099/mic.0.001196
/content/journal/micro/10.1099/mic.0.001196
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