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Profusion of microplastics in dental healthcare units; morphological, polymer, and seasonal trends with hazardous consequences for humans
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This study measured microplastic contamination in dental clinics during routine procedures and found thousands of particles in the air, with dental professionals inhaling significant amounts daily. Female dental workers faced slightly higher inhalation risks than male workers. The findings highlight that people working in healthcare settings with extensive plastic use face elevated microplastic exposure that could affect their respiratory health over time.
Given the convenience of using plastics, addressing the growing concerns about their hazardous health effects is imperative. Consequently, a comprehensive risk assessment is necessary to gauge the potential harm microplastics pose. With its urgent call to action, this study aimed to investigate the indoor source and abundance of microplastics in private dental units during routine professional activities. The current analyzed microplastic quantity variations based on morphological characteristics, seasonal fluctuations and polymer-types. The polymer hazard index (PHI) was calculated to evaluate the significant human health risks posed to dental professionals by inhalation of microplastics. Dust samples were collected using a clean brush and steel pan from various flat and horizontal surfaces within each dental unit. The study found that clinical dental units had fewer microplastics (587 ± 184.9 MPs/g/day) than teaching hospitals (1083.80 ± 133.7MPs/g/day), with comparatively more abundance in winter (31 %). ATR-FTIR analysis determined polyethylene terephthalate to be a more abundant polymer (39 %). This study also found an average inhalation microplastic intake risk of 20.23 MP/g/day and 5259.85 MP/g/year for clinical and 29.45 MP/g/day and 765.12 MP/g/year for teaching hospital dental units. Female dental professionals have 1.1 times more microplastic inhalation risks than male dental professionals. According to PHI findings, overall minor to medium polymer risk was determined. In conclusion, this evidence-based research underscores the urgent need for a shift towards more sustainable practices in the dental healthcare sector. Dental professionals should prioritize using non-plastic material protective equipment and a proper ventilation system to reduce exposure to these particles.
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Researchers found that common dental procedures like grinding and cleaning dentures release significant amounts of microplastics into the air and surroundings. Both dental workers and patients are exposed to these particles through inhalation and ingestion during routine dental care. This study identifies dental clinics as a previously unrecognized source of microplastic exposure for both healthcare workers and the general public.
Microplastics in Dentistry: A Review of Health and Environmental Risks
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This narrative review examined the sources and health implications of microplastics in dental settings, identifying dental materials, procedures, and equipment as underrecognized sources of patient and clinician exposure. The review calls for greater awareness and standardized safety protocols in dentistry.
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This review outlined how common dental products — including toothpastes, composites, orthodontic appliances, and floss — contain or generate microplastics through degradation and use, and summarized the health risks from exposure via ingestion, inhalation, and dermal contact.
What every dentist needs to know about microplastics and dental materials.
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This review examines the sources and potential health risks of microplastics originating from dental products, including toothpastes, dental composites, aligners, and other clinical materials. Researchers found that dental products can release microplastic particles during use and degradation, contributing to both patient exposure and environmental contamination. The study calls for greater awareness among dental professionals about microplastic risks and the development of safer alternative materials.
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Researchers quantified and characterized airborne microplastics in a hospital operating theatre and adjoining anaesthetic room over a one-week period. They found an average of 1,924 microplastic particles per cubic meter per day in the theatre during working hours, dominated by polyethylene terephthalate and polypropylene fragments. The study provides novel data on microplastic exposure in surgical environments where single-use plastics are widely used, and no microplastics were detected during non-working hours.
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