ORAL MICROBIOME RECOVERY FOLLOWING ANTIMICROBIAL EXPOSURE: A SCOPING REVIEW OF MICROBIAL RESILIENCE AND RESTORATION OF HOMEOSTASIS
DOI:
https://doi.org/10.47701/7xw4sc83Keywords:
Antimicrobial Exposure, Microbial Resilience, Microbial Homeostasis, Oral MicrobiomeAbstract
The oral microbiome is a dynamic microbial ecosystem
that can be disrupted by antimicrobial exposure, resulting
in changes in microbial composition, diversity, and
community structure. The capacity of the oral microbiome
to withstand environmental disturbances and
subsequently regain ecological stability represents an
important characteristic of microbial resilience and is
closely related to the maintenance of oral microbial
homeostasis. This scoping review aimed to map the
available evidence regarding oral microbiome responses
following antimicrobial exposure, with particular
emphasis on microbial resilience, recovery, and
restoration of homeostasis. Literature was searched
through PubMed, ScienceDirect, and Google Scholar using
terms related to oral microbiome, antimicrobial exposure,
microbial resilience, and microbial homeostasis. Relevant
literature published within the predefined period was
screened according to predetermined inclusion and
exclusion criteria, followed by data extraction and
descriptive evidence mapping. The findings indicate that
antimicrobial exposure may substantially modify oral
microbial composition, diversity, community structure,
and ecological interactions. Evidence from the included
studies suggests that oral microbial communities possess
varying degrees of resilience following microbial
disturbance, with recovery influenced by the type and
intensity of antimicrobial exposure, characteristics of the
microbial community, and host-related ecological factors.
However, the extent and completeness of recovery toward
the pre-exposure state vary across microbial
communities and exposure conditions. These findings
highlight the importance of understanding oral
microbiome resilience and recovery as key processes in the restoration and maintenance of oral microbial
homeostasis and provide a basis for further longitudinal
research on strategies to preserve microbial stability
following antimicrobial disturbance.
References
Brar, N. K., Dhariwal, A., Åmdal, H. A., Junges, R., Salvadori, G., Baker, J. L., Edlund,
A., & Petersen, F. C. (2024). Exploring ex vivo bio fi lm dynamics : consequences
of low ampicillin concentrations on the human oral microbiome. 1–10.
https://doi.org/10.1038/s41522-024-00507-7
Laheij, A. M. G. A., Rozema, F. R., Brennan, M. T., Bültzingslöwen, I. Von, Leeuwen, S.
J. M. Van, Potting, C., Huysmans, M. D. N. J. M., Hazenberg, M. D., Brandt, B. W.,
Zaura, E., Buijs, M. J., Soet, J. J. De, Blijlevens, N. N. M., & Raber-durlacher, J. E.
(2022). Long-Term Analysis of Resilience of the Oral Microbiome in Allogeneic
Stem Cell Transplant Recipients. 1–13. https://doi.org/10.1038/s41598-019-55056-
3
Lewin, G. R., Evans, E. R., & Whiteley, M. (2024). Microbial interactions impact stress
tolerance in a model oral community. 12(10), 1–13. https://doi.org/10.1038/s41522-
024-00507-7
Menon, R. K., Gomez, A., B, B. W., Leung, Y. Y., Gopinath, D., & W, R. M. (2019). Long-
term impact of oral surgery with or without amoxicillin on the oral microbiome-A
prospective cohort study. 1–10. https://doi.org/10.1038/s41598-019-55056-3
Trial, P., Olsen, C. L., Massarenti, L., Frederik, V., Vendius, D., Gürsoy, U. K., Splunter,
A. Van, Bikker, F. J., Gürsoy, M., Damgaard, C., Markvart, M., & Belstrøm, D.
(2023). Probiotics Support Resilience of the Oral Microbiota during Resolution after
Experimental Gingivitis — A Randomized ,. https://doi.org/10.3390/nu15224805
Article, R. (2026). From Antimicrobial Resistance to Regenerative Failure: Reframing
Antimicrobial Resistance as a Barrier to Microbiome-driven Tissue Repair.
https://doi.org/10.4103/WKRJ.WKRJ
Cui, Z., Wang, P., & Gao, W. (2025). Microbial dysbiosis in periodontitis and peri-
implantitis : pathogenesis , immune responses , and therapeutic. February, 1–
19. https://doi.org/10.3389/fcimb.2025.1517154
Date, P., & Information, C. (2025). Lawrence Berkeley National Laboratory.
https://doi.org/10.1016/j.bioactmat.2025.02.023
Hashim, N. T., Babiker, R., Priya, S. P., Mohammed, R., Chaitanya, N. C. S. K.,
Padmanabhan, V., Bahra, S. El, Rahman, M. M., & Gismalla, B. G. (2024).
Microbial Dynamics in Periodontal Regeneration : Understanding Microbiome
Shifts and the Role of Antifouling and Bactericidal Materials : A Narrative Review.
12196–12213.
Hashim, N. T., Chaitanya, N. C. S. K., Babiker, R., Ahmed, A., Rahman, M. M.,
Mohammed, R., Padmanabhan, V., & Islam, S. (2026). Antibiotic Exposure and
Periodontal Susceptibility : A Risk-Modifying Hypothesis. 1–19.
Li, Y., He, X., Luo, G., & Zhao, J. (2025). Innovative strategies targeting oral microbial
dysbiosis : unraveling mechanisms and advancing therapies for periodontitis. April,
1–21. https://doi.org/10.3389/fcimb.2025.1556688
Resilience of the oral microbiota in health - mechanisms that prevent dysbiosis. (2018).
Tagg, J. R., Harold, L. K., & Hale, J. D. F. (2023). Beneficial modulation of human health
in the oral cavity and beyond using bacteriocin-like inhibitory substance-producing
streptococcal probiotics. March.
https://doi.org/10.3389/fmicb.2023.1161155
Chen, D., Li, D., Su, L., Wang, D., Ren, Y., Busscher, H. J., & Mei, H. C. Van Der. (2025).
Stimuli-responsive , antimicrobial-loaded nanocarriers for oral bio fi lm control and
microbiome restoration. July.
Hashim, N. T., Chaitanya, N. C. S. K., Babiker, R., Ahmed, A., Rahman, M. M.,
Mohammed, R., Padmanabhan, V., & Islam, S. (2026). Antibiotic Exposure and
Periodontal Susceptibility : A Risk-Modifying Hypothesis. 1–19.
Kulis, E., Cvitkovic, I., Pavlovic, N., Kumric, M., & Rusic, D. (2025). A Comprehensive
Review of Antibiotic Resistance in the Oral Microbiota : Mechanisms , Drivers , and
Emerging Therapeutic Strategies. 1–23.
Lamont, R. J., Koo, H., Hajishengallis, G., Diseases, I., Health, C. O., Medicine, P. D., &
Medicine, P. D. (2019). The oral microbiota : dynamic communities and host
interactions (Vol. 16, Issue 12). https://doi.org/10.1038/s41579-018-0089-x.The
Li, Y., He, X., Luo, G., & Zhao, J. (2025). Innovative strategies targeting oral microbial
dysbiosis : unraveling mechanisms and advancing therapies for periodontitis. April,
1–21. https://doi.org/10.3389/fcimb.2025.1556688
Bournes, R., Hingley-wilson, S., Guo, B., Harris, C., Abubacar, U., & Bauer, R. (2026).
npj Biofilms and Microbiomes Article in Press Agent-based modeling of erosion and
sloughing during growth of Pseudomonas aeruginosa biofilms TI IN ES Abstract.
Azizan, N., Rageh, A., Sonia, A. A., Mun, K., & Loke, F. (2026). Oral microbiome
profiling of primary oral candidiasis during infection and post-antifungal therapy.