We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
From Oral Cavity to Whole Body: A Review of the Local and Systemic Toxicity Mechanisms and Health Risks of MNPs.
AI summary Read the abstract
This research review reveals that tiny plastic particles (called microplastics) first accumulate in our mouths before spreading throughout the body, making the mouth a critical "entry point" for plastic pollution. The study shows these particles can build up in dental plaque and may cause local damage in the mouth while also serving as a gateway for more serious health problems throughout the body. Understanding how microplastics first interact with our mouths could help scientists better protect people from the growing health risks of plastic pollution.
BACKGROUND: Research on micro/nanoplastics (MNPs) focuses largely on systemic toxicity from gastrointestinal or respiratory exposure, overlooking the oral cavity as a critical first contact point. This gap obscures understanding of early exposure pathways and initial local effects. METHODS: This review systematically establishes the oral cavity as an "initial target organ." It synthesizes evidence on oral MNP exposure routes, their unique accumulation in biofilms and dental calculus, and mechanisms like physical abrasion, microbial dysbiosis, and the "Trojan horse" effect to construct an oral-specific toxicity framework. RESULTS: Integrating advanced detection methods with models like PBTK reveals the oral cavity not as a passive conduit, but as an active "first amplifier" of MNP risk. The analysis details how MNPs initially interact with oral biological barriers. CONCLUSION: The study positions the oral cavity as the origin of systemic MNP health risks, demonstrates the long-term implications of oral MNP accumulation, and provides a scientific foundation for advancing the field of environmental oral health.
More Papers Like This
The oral–systemic interface of micro- and nanoplastics
AI summary Read the abstract
Researchers reviewed the oral cavity as an underexplored entry point for micro- and nanoplastics from dental products, toothbrushes, restorations, and implants, finding evidence linking local particle exposure to oral diseases including periodontitis and oral cancer, and noting that particles crossing oral barriers can disseminate systemically to worsen inflammatory and metabolic conditions.
The unseen perils of oral-care products generated micro/nanoplastics on human health
AI summary Read the abstract
This review reveals that everyday oral care products like toothpaste, toothbrushes, and dental materials release micro and nanoplastics into the mouth through normal use. These tiny particles are generated by mechanical friction, pH changes, and temperature shifts during brushing and dental procedures. Since the mouth is a direct entry point to the digestive system, this overlooked source of microplastic exposure could have significant implications for human health.
Microplastics (MPs) as a Systemic Hazard: Unveiling the Potential Link to Oral Inflammation through Shared Inflammatory Pathways and the Oral-Intestinal Axis.
AI summary Read the abstract
Tiny plastic particles that get into our bodies through food, water, and air may do more than just travel through our blood and organs—this review of existing research suggests they could also trigger inflammation that harms our gums and mouth. While no one has directly proven microplastics cause oral diseases like gum disease or mouth sores, the same inflammatory pathways in the body that these plastics activate are also seen in these conditions, and a connection between gut and oral health could make things worse. It's an early theoretical case for taking a closer look at how the plastic we're exposed to daily might quietly affect our oral health, not just our internal organs.
Micro- and Nanoplastics and the Oral Cavity: Implications for Oral and Systemic Health, Dental Practice, and the Environment—A Narrative Review
AI summary Read the abstract
This review explores how micro- and nanoplastics are both generated by and introduced through dental practices, including from composite fillings, aligners, and other dental materials. Researchers discuss the potential implications for oral and systemic health, noting that the oral cavity serves as a direct entry point for these particles into the body. The study encourages the dental field to adopt safer, microplastic-free materials and raise awareness among practitioners.
Microplastics in the human body: A comprehensive review of exposure, distribution, migration mechanisms, and toxicity
AI summary Read the abstract
This comprehensive review pulls together research on how microplastics enter the human body through food, air, and skin contact, and where they accumulate in organs and tissues. The review discusses how particle size determines whether microplastics can cross biological barriers like the gut lining and blood-brain barrier. The authors conclude that microplastics pose significant health risks and call for more research into their long-term effects.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.