Reopening dentistry after COVID-19: Complete suppression of aerosolization in dental procedures by viscoelastic Medusa Gorgo
Reopening dentistry after COVID-19: Complete suppression of aerosolization in dental procedures by viscoelastic Medusa Gorgo
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DOI：
10.1063/5.0021476
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发表时间：
2020-08-01
影响因子：
4.6
通讯作者：
Yarin, Alexander L.
中科院分区：
文献类型：
--
作者：
Plog, Jevon;Wu, Jingwei;Yarin, Alexander L.
严重急性呼吸综合征冠状病毒 2 (SARS-CoV-2) 的气溶胶传播影响了医疗保健的提供，并基本上停止了医疗和牙科治疗的提供。牙科在患者的日常治疗中使用旋转式、超声波和激光仪器来产生水基气雾剂。产生大量气溶胶，影响医护人员和其他患者。包括 SARS-CoV-2 病毒和相关冠状病毒病 (COVID-19) 在内的病毒继续在美国和世界各地蔓延。该病毒通过飞沫（可见液滴）和气溶胶（几乎不可见液滴）传播。牙科中气溶胶的产生是大多数牙科治疗中不可避免的一部分，会造成高风险。美国疾病控制中心和职业安全与健康管理局认为牙科手术对于 SARS-CoV-2 和其他呼吸道病毒的潜在传播具有“最高风险”。有多种方法可以减少或消除病毒：（i）停止或推迟牙科治疗（公共和个人健康风险），（ii）在牙科治疗前立即对患者进行筛查（通过适当的测试，如果有的话），（iii）通过工程控制和严格使用个人防护设备来阻止/消除含有气溶胶的病毒。目前的工作采用了一种新颖的第四种方法。通过改变水对牙科中使用的旋转力或超声波力的物理响应，与用于超声波洁牙机和牙科手机的水相比，可以显着抑制或完全消除气溶胶颗粒的产生以及任何气溶胶可能扩散到产生点之外的距离。
The aerosol transmissibility of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has impacted the delivery of health care and essentially stopped the provision of medical and dental therapies. Dentistry uses rotary, ultrasonic, and laser-based instruments that produce water-based aerosols in the daily, routine treatment of patients. Abundant aerosols are generated, which reach health care workers and other patients. Viruses, including SARS-CoV-2 virus and related coronavirus disease (COVID-19) pandemic, continued expansion throughout the USA and the world. The virus is spread by both droplet (visible drops) and aerosol (practically invisible drops) transmission. The generation of aerosols in dentistry-an unavoidable part of most dental treatments-creates a high-risk situation. The US Centers for Disease Control and The Occupational Safety and Health Administration consider dental procedures to be of "highest risk" in the potential spreading of SARS-CoV-2 and other respiratory viruses. There are several ways to reduce or eliminate the virus: (i) cease or postpone dentistry (public and personal health risk), (ii) screen patients immediately prior to dental treatment (by appropriate testing, if any), (iii) block/remove the virus containing aerosol by engineering controls together with stringent personal protective equipment use. The present work takes a novel, fourth approach. By altering the physical response of water to the rotary or ultrasonic forces that are used in dentistry, the generation of aerosol particles and the distance any aerosol may spread beyond the point of generation can be markedly suppressed or completely eliminated in comparison to water for both the ultrasonic scaler and dental handpiece.