Protective device to reduce aerosol dispersion in dental clinics during the COVID-19 pandemic

被引:27
作者
Teichert-Filho, R. [1 ,2 ]
Baldasso, C. N. [1 ]
Campos, M. M. [1 ]
Gomes, M. S. [1 ,2 ]
机构
[1] Pontificia Univ Catolica Rio Grande do Sul, Programa Posgrad Odontol, Escola Ciencias Saude & Vida, 6681 Ipiranga Ave Bldg 6, Porto Alegre, RS, Brazil
[2] Ctr Med Odontol Brigada Mil Rio Grande do Sul, Porto Alegre, RS, Brazil
关键词
dental care; infection control; personal protective equipment; public health; SARS-CoV-2; CONTAMINATION; CORONAVIRUS; SPLATTER; RISK;
D O I
10.1111/iej.13373
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Aim To describe the use of a new protective device to reduce aerosol dispersion in dental clinics during the COVID-19 pandemic. Methodology The device consists of a rigid translucent acrylic structure (methyl polymethacrylate), adjusted to the dental chair, involving the patient's head, neck and chest regions. There is also a piping system to generate negative pressure, for aspiration and filtering of the air inside the device chamber. The operator works through small holes in the acrylic structure, to reduce contact with the microparticles arising from aerosols during dental procedures. Simulated dental procedures using a fluorescent dye in the water of the dental equipment were carried out, with and without the use of the device. The presence of the dye was analysed at various locations, such as on personal protective equipment (PPE), the dental chair and on the clinic floor. Results In the simulated dental procedure without the device, the dye was obvious on surgical gloves, aprons (waist, chest, legs, fists) and face shields, as well as on the dental chair (backrest, light reflector) and clinic floor. In the simulated dental procedure using the device, the dye was observed only on surgical gloves, apron (fists), inside the pipe system and internal walls of the acrylic chamber. There was a certain limitation of movement and visualization by the dentist whilst using the device. Conclusions The present device is a low-cost complementary resource for use in conjunction with standard PPE, to reduce the transmission of SARS-CoV-2 in the dental setting. Further clinical trials should be carried out to test the efficacy of this device to reduce aerosol dispersion and the consequent vector of contamination, as well as the ergonomic impacts related to its use.
引用
收藏
页码:1588 / 1597
页数:10
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