Oral Microbiota Development
Oral Microbiota Development - Related Videos
01:28
Development of the Oral Microbiota
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2026
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
01:27
Oral Infection Alters the Gut Microbiota in a Rat Model
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2026
Begin with a rat model with sutures tied around its upper molar teeth to support bacterial colonization.Repeatedly smear the sutures with a gum disease-causing oral pathogenic bacterium using a gel-like solution.The bacteria colonize the gum around the sutures.Colonization triggers inflammation and damages the tissues.The bacteria release toxins that diffuse through damaged tissues and enter the bloodstream.These circulating toxins reach the gut, cause inflammation, disrupt the epithelial...
01:27
The Oral Microbiota
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2026
The oral microbiome includes a complex ecosystem comprising over 700 microbial species, identified through genomic sequencing and culture-based analyses to date. This community includes a core microbiome, found universally among individuals, and a variable component influenced by environmental factors such as diet, lifestyle, and host genetics. Site-specific conditions, including oxygen gradients, pH levels, and nutrient availability, determine the spatial distribution of these microorganisms...
01:30
Development of Human Microbiota
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2026
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
07:09
Use of a High-throughput In Vitro Microfluidic System to Develop Oral Multi-species Biofilms
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Cited by 28 •
2014
The goal of this methods paper is to describe the use of a microfluidic system for the development of multi-species biofilms that contain species typically identified in human supragingival dental plaque. Methods to describe biofilm architecture, biofilm viability, and an approach to harvest biofilm for culture-dependent or culture-independent analyses are highlighted.
FAQs
These factors act as ecological filters that influence which microorganisms can establish and persist on oral surfaces. Host tissues provide changing habitats, while saliva, diet, hygiene practices, and environmental exposures alter the conditions experienced by microbial communities. Their combined effects help explain why oral communities differ across individuals and why their composition can change throughout life.
Microbial interactions help organize individual microorganisms into communities rather than leaving them as isolated populations. Biofilm formation gives these communities a structured association on oral surfaces, allowing different organisms to coexist within particular habitats. This organization is important because community structure contributes to whether the microbiota supports oral homeostasis or becomes associated with disturbance.
Developmental changes can shift the balance between a community that supports oral homeostasis and one associated with disease. When the established microbial community is disturbed, its altered organization may contribute to conditions such as dental caries or periodontal disease. Studying these transitions connects microbial development with biological changes in oral health across life.
Maturation is shaped by both biological and environmental conditions. Changes in host tissues, saliva, diet, hygiene, or environmental exposure can affect which organisms remain present and how communities are organized. Because these influences operate together, the resulting trajectory reflects interactions between the host and its surroundings rather than a fixed sequence of microbial change.
Researchers can examine developmental patterns by considering how oral microbial communities change as host tissues and environmental conditions change across life. They can relate community organization to influences such as saliva, diet, hygiene, and exposure history, then consider whether the resulting patterns align with oral homeostasis or disturbance. This approach supports investigation of host-microbe relationships.
Developmental patterns can identify periods or conditions in which oral communities are more likely to remain balanced or become disturbed. That information can guide preventive strategies aimed at supporting oral homeostasis and can help frame microbiome research around community maturation. It also provides context for investigating how host factors and microbial interactions contribute to oral conditions.