We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microplastics and orthodontic aligners: The concerns arising from the modernization of practice through polymers and plastics
AI summary Read the abstract
This review highlights that clear plastic orthodontic aligners release microplastics and the chemical BPA (bisphenol A) during normal use in the mouth. The released particles can be swallowed and potentially affect the gut, respiratory system, cardiovascular system, and brain. The authors urge the orthodontic field to prioritize patient safety and develop materials that minimize microplastic release from dental devices.
Plastic aligners have transformed orthodontics, offering a discreet, comfortable, and aesthetically pleasing alternative to traditional fixed appliances. While they have advantages over fixed appliances, they come with environmental and health concerns due to the use of nonbiodegradable plastics, such as the leaching of Bisphenol-A (BPA) and microplastics that can impact human health directly through ingestion. Studies have shown that plastic aligners release microplastics during use, raising concerns about their potential health effects and environmental pollution. The potential health effects of ingested microplastics extend beyond gut microbiota disruption to impact various systems in the body. Research suggests that microplastic exposure can lead to respiratory complications, cardiovascular risks, and implications for brain health and cognitive function. The mechanisms of microplastic uptake into the body through inhalation, ingestion, and skin contact are essential for understanding how these particles interact with human tissues and organs. By prioritizing patient safety, responsible practices, and advancing scientific knowledge the orthodontic community can work towards mitigating the potential health impacts associated with microplastic exposure from aligners.
More Papers Like This
Chemical leaching and microplastics from clear aligner materials: Current evidence and future perspectives
AI summary Read the abstract
This review found that orthodontic clear aligners can release microplastics and chemicals like BPA into the mouth during normal use. While most products meet current safety standards, the combination of mechanical wear, saliva, and temperature changes in the mouth accelerates material breakdown, making dental appliances an underrecognized source of daily microplastic exposure.
Can Clear Aligners Release Microplastics That Impact the Patient’s Overall Health? A Systematic Review
AI summary Read the abstract
This systematic review investigates whether clear orthodontic aligners release microplastics during use in the mouth. The findings raise concerns about a previously overlooked source of direct microplastic exposure, since millions of people wear these plastic devices against their teeth and gums for months or years at a time.
Microplastics in Orthodontics
AI summary Read the abstract
This paper reviews how microplastics can leach from dental and orthodontic materials such as toothpaste, retainers, aligners, and adhesives, with the oral cavity being a direct route for microplastic ingestion. As orthodontic treatments become more common, especially clear aligner therapy, understanding the extent of microplastic release from these devices is important for assessing patient exposure.
Biocompatibility and Safety of Orthodontic Clear Aligners and Thermoplastic Retainers: A Systematic In Vitro Review (2015–2025)
AI summary Read the abstract
This systematic review examined whether orthodontic clear aligners and retainers release harmful chemicals or microplastics in the mouth. While most products met safety standards, some materials did release detectable levels of bisphenol A and other chemicals, especially during initial wear and after aging, raising questions about long-term oral exposure.
Release of Microplastics and Chemical Compounds from Clear Orthodontic Aligners: A Narrative Review of the Current Evidence
AI summary Read the abstract
This review summarizes existing research on clear plastic orthodontic aligners, worn in the mouth, and whether they release chemicals and tiny plastic particles as they wear down. Lab studies found that aligner surfaces can develop roughness and tiny cracks, sometimes releasing chemicals and microplastics, but most evidence comes from lab models rather than real-world use in people.
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.