Oral microbiota shifts following tooth loss affect gut health

Abstract Background Tooth loss not only impairs oral function but also affects gut health by altering the host microbiota. Understanding the oral-gut axis can provide insights into systemic health implications following tooth loss. Methods Using an animal model, we extracted the molars of C57 mice....

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Main Authors: Ling Dong, Zhaoxin Ji, Jiangqi Hu, Qingsong Jiang, Wei Wei
Format: Article
Language:English
Published: BMC 2025-02-01
Series:BMC Oral Health
Subjects:
Online Access:https://doi.org/10.1186/s12903-025-05581-7
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author Ling Dong
Zhaoxin Ji
Jiangqi Hu
Qingsong Jiang
Wei Wei
author_facet Ling Dong
Zhaoxin Ji
Jiangqi Hu
Qingsong Jiang
Wei Wei
author_sort Ling Dong
collection DOAJ
description Abstract Background Tooth loss not only impairs oral function but also affects gut health by altering the host microbiota. Understanding the oral-gut axis can provide insights into systemic health implications following tooth loss. Methods Using an animal model, we extracted the molars of C57 mice. Saliva and fecal samples were collected for 16S rRNA and metagenomic sequencing to analyze changes in the oral and gut microbiota. Pearson correlation analysis assessed the relationship between altered microbial communities. Results The study found a significant reduction in oral microbiota diversity following tooth loss, with increased Proteobacteria and decreased Muribacter. Gut microbiota showed increased Firmicutes and decreased Bacteroidota. Correlations between oral and gut microbiota changes were observed, indicating a potential link between tooth loss and alterations in intestinal microbial balance. Conclusion In the mouse model, tooth loss disrupted the balance of the oral-gut microbiota, with potential implications for intestinal health. Although these findings are from a murine model, considering the existence of the oral-gut axis balance in the human body, it is reasonable to postulate that following tooth loss in humans, the health of the intestinal microecology may also warrant attention.
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spelling doaj-art-a032f934711641d9a77b058a8359d2a32025-08-20T02:43:16ZengBMCBMC Oral Health1472-68312025-02-0125111110.1186/s12903-025-05581-7Oral microbiota shifts following tooth loss affect gut healthLing Dong0Zhaoxin Ji1Jiangqi Hu2Qingsong Jiang3Wei Wei4Department of Prosthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical UniversityDepartment of Prosthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical UniversityDepartment of Prosthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical UniversityDepartment of Prosthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical UniversityDepartment of Prosthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical UniversityAbstract Background Tooth loss not only impairs oral function but also affects gut health by altering the host microbiota. Understanding the oral-gut axis can provide insights into systemic health implications following tooth loss. Methods Using an animal model, we extracted the molars of C57 mice. Saliva and fecal samples were collected for 16S rRNA and metagenomic sequencing to analyze changes in the oral and gut microbiota. Pearson correlation analysis assessed the relationship between altered microbial communities. Results The study found a significant reduction in oral microbiota diversity following tooth loss, with increased Proteobacteria and decreased Muribacter. Gut microbiota showed increased Firmicutes and decreased Bacteroidota. Correlations between oral and gut microbiota changes were observed, indicating a potential link between tooth loss and alterations in intestinal microbial balance. Conclusion In the mouse model, tooth loss disrupted the balance of the oral-gut microbiota, with potential implications for intestinal health. Although these findings are from a murine model, considering the existence of the oral-gut axis balance in the human body, it is reasonable to postulate that following tooth loss in humans, the health of the intestinal microecology may also warrant attention.https://doi.org/10.1186/s12903-025-05581-7Oral MicrobiotaGut microbiotaOral‑gut microbiome axisTooth Loss
spellingShingle Ling Dong
Zhaoxin Ji
Jiangqi Hu
Qingsong Jiang
Wei Wei
Oral microbiota shifts following tooth loss affect gut health
BMC Oral Health
Oral Microbiota
Gut microbiota
Oral‑gut microbiome axis
Tooth Loss
title Oral microbiota shifts following tooth loss affect gut health
title_full Oral microbiota shifts following tooth loss affect gut health
title_fullStr Oral microbiota shifts following tooth loss affect gut health
title_full_unstemmed Oral microbiota shifts following tooth loss affect gut health
title_short Oral microbiota shifts following tooth loss affect gut health
title_sort oral microbiota shifts following tooth loss affect gut health
topic Oral Microbiota
Gut microbiota
Oral‑gut microbiome axis
Tooth Loss
url https://doi.org/10.1186/s12903-025-05581-7
work_keys_str_mv AT lingdong oralmicrobiotashiftsfollowingtoothlossaffectguthealth
AT zhaoxinji oralmicrobiotashiftsfollowingtoothlossaffectguthealth
AT jiangqihu oralmicrobiotashiftsfollowingtoothlossaffectguthealth
AT qingsongjiang oralmicrobiotashiftsfollowingtoothlossaffectguthealth
AT weiwei oralmicrobiotashiftsfollowingtoothlossaffectguthealth