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References

Fuchs FM, Bibinov N, Blanco EV Characterization of a robot-assisted UV-C disinfection for the inactivation of surface-associated microorganisms and viruses. J Photochem Photobiol. 2022; 11 https://doi.org/10.1016/j.jpap.2022.100123
Sabino CP, Sellera FP, Sales-Medina DF UV-C (254 nm) lethal doses for SARS-CoV-2. Photodiagnosis Photodyn Ther. 2020; 32 https://doi.org/10.1016/j.pdpdt.2020.101995
Guidelines on limits of exposure to ultraviolet radiation of wavelengths between 180 nm and 400 nm (incoherent optical radiation). Health Phys. 2004; 87:171-186 https://doi.org/10.1097/00004032-200408000-00006
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Welch D, Buonanno M, Grilj V Far-UVC light: a new tool to control the spread of airborne-mediated microbial diseases. Sci Rep. 2018; 8 https://doi.org/10.1038/s41598-018-21058-w
Buonanno M, Welch D, Shuryak I, Brenner DJ Far-UVC light (222 nm) efficiently and safely inactivates airborne human coronaviruses. Sci Rep. 2020; 10 https://doi.org/10.1038/s41598-020-67211-2
Sliney DH, Stuck BE A need to revise human exposure limits for ultraviolet UV-C Radiation. Photochem Photobiol. 2021; 97:485-492 https://doi.org/10.1111/php.13402
Woods JA, Evans A, Forbes PD The effect of 222-nm UVC phototesting on healthy volunteer skin: a pilot study. Photodermatol Photoimmunol Photomed. 2015; 31:159-166 https://doi.org/10.1111/phpp.12156
Eadie E, Barnard IMR, Ibbotson SH, Wood K Extreme exposure to filtered far-UVC: a case study. Photochem Photobiol. 2021; 97:527-531 https://doi.org/10.1111/php.13385
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Eadie E, Hiwar W, Fletcher L Far-UVC (222 nm) efficiently inactivates an airborne pathogen in a room-sized chamber. Sci Rep. 2022; 12 https://doi.org/10.1038/s41598-022-08462-z8.org/10.1088/1361-6498/ac9e60
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The role of far-UVC in dentistry

From Volume 51, Issue 2, February 2024 | Pages 83-84

Authors

Douglas Clarkson

Research Fellow at UHCW NHS Trust in Coventry and has specific interests in medical devices using optical technologies.

Articles by Douglas Clarkson

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Article

The COVID-19 pandemic has undoubtedly had a significant impact on all health provision sectors. Within dental care, service disruption has been particularly problematic due to the high level of patient contact and the potential for generation of aerosols during treatment sessions. The service, however, remains vulnerable to future coronavirus-type pandemics.

It has been known for some time that the ultraviolet wavelength of 254 nm, in the UVC band, produced from mercury vapour discharge tubes, has the ability to decontaminate clinical environments,1 and its effectiveness has also been demonstrated against the SARS-CoV-2 virus.2 This has been the conventional basis of systems for rapid decontamination of clinical areas in, for example, critical care environments and accident and emergency departments. The UVC treatment method using 254 nm was typically only applied to individual room spaces owing to the risk of exposure of clinical staff in ‘open’ clinical areas.

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