The efficacy of an extraoral scavenging device on reduction of splatter contamination during dental aerosol generating procedures: an exploratory study

被引：33

作者：

Shahdad, Shakeel ^{[1
,2
]}

Patel, Tulsi ^{[3
]}

Hindocha, Annika ^{[3
]}

Cagney, Neil ^{[4
]}

Mueller, Jens-Dominik ^{[5
]}

Seoudi, Noha ^{[6
]}

Morgan, Claire ^{[7
]}

Din, Ahmed ^{[8
]}

机构：

[1] Queen Mary Univ London, Barts Hlth NHS Trust, Royal London Dent Hosp, Oral Rehabil & Implantol,Barts & London Sch Med &, London, England

[2] Queen Mary Univ London, Barts Hlth NHS Trust, Royal London Dent Hosp, Restorat Dent,Barts & London Sch Med & Dent, London, England

[3] Barts Hlth NHS Trust, Restorat Dent & Gen Duties, Royal London Dent Hosp, London, England

[4] Queen Mary Univ London, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England

[5] Queen Mary Univ London, Computat Fluid Dynam & Optimisat, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England

[6] Queen Mary Univ London, Oral Microbiol, Ctr Oral Immunobiol & Regenerat Med, Barts & London Sch Med & Dent, London E1 2AD, England

[7] Royal London Dent Hosp, Restorat Dent, Barts Hlth NHS Trust, London, England

[8] Barts Hlth NHS Trust, Royal London Dent Hosp, Orthodont, London, England

来源：

BRITISH DENTAL JOURNAL | 2020年

关键词：

D O I：

10.1038/s41415-020-2112-7

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

IntroductionThis study was conducted in light of the SARS-CoV-2 pandemic, which brought UK dentistry to a standstill. The market has seen a recent influx of unproven extraoral scavengers (EOSs), which claim to reduce the risk of particulate spread. AimsTo investigate the efficacy of a commercially available EOS device on contamination reduction during dental aerosol generating procedures (AGPs). The secondary aim was to investigate differences between open and closed dental operatories. MethodDental procedures were simulated on a dental manikin using citric acid (10%) added to the water lines with universal indicating paper (UIP) placed in strategic locations in the operatory, on the clinician and assistant. Chromatic change related to settling of splatter containing citric acid on the UIP was analysed to calculate percentage intensity of splatter contamination. ResultsEOSs resulted in 20% reduction in frequency and 75% reduction in mean intensity of contamination of operatory sites. There was a 33% and 76% reduction in mean intensity contamination for clinician and assistant, respectively. Use of rubber dam and four-handed dentistry resulted in further reduction. DiscussionThis exploratory study demonstrates contamination by splatter in a simulated dental setting. The concern in dentistry regarding aerosol requires further quantitative investigation of smaller particles. ConclusionsThe routine use of four-handed dentistry and rubber dam should continue where possible to maximise risk mitigation during AGPs. However, on the basis of our findings, the use of an EOS device can further mitigate the magnitude and concentration of splatter.

引用

页数：10

共 24 条

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