The efficacy of bio-aerosol reducing procedures used in dentistry: a systematic review

Samaranayake, LP; Fakhruddin, Kausar Sadia; Buranawat, Borvornwut; Panduwawala, Chamila

doi:10.1080/00016357.2020.1839673

Cited by 41 publications

(41 citation statements)

References 44 publications

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“…It seems well known that to reduce the risk of aerosols in dentistry, more than one protective measure has to be applied. 2 , 15 A recently published systematic review 16 recommended combining strategies of protective procedures, including preprocedural antimicrobial oral rinsing and the use of a high-volume evacuator with a properly sized suction cannula and rubber dam. However, more options than these three measures are mentioned in the scientific literature, e.g., four-handed dentistry, room ventilation, masks, and frequent disinfection of the suction system of the dental unit.…”

Section: Discussionmentioning

confidence: 99%

The efficacy of an extraoral scavenging device on reducing aerosol particles ≤ 5 µm during dental aerosol-generating procedures: an exploratory pilot study in a university setting

et al. 2021

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Objective/aim To identify small particle concentrations (eight categories: ≤0.1 µm × ≤5.0 µm) induced by aerosol-generating procedures (AGPs; high-speed tooth preparation, ultrasonic scaling; air polishing) under high-flow suction with a 16-mm intraoral cannula with and without an additional mobile extraoral scavenger (EOS) device during student training. Materials and methods Twenty tests were performed (16.94 m2 room without ventilation with constant temperature (26.7 (1.1) °C and humidity (56.53 (4.20)%)). Data were collected 2 min before, 2 min during, and 6 min after AGPs. The EOS device and the air sampler for particle counting were placed 0.35 m from the open mouth of a manikin head. The particle number concentration (PN, counts/m3) was measured to calculate ΔPN (ΔPN = [post-PN] − [pre-PN]). Results Mean ΔPN (SD) ranged between −8.65E+06 (2.86E+07) counts/m3 for 0.15 µm and 6.41E+04 (2.77E+05) counts/m3 for 1.0 µm particles. No significant differences were found among the AGP groups (p > 0.05) or between the AGP and control groups (p > 0.05). With an EOS device, lower ΔPN was detected for smaller particles by high-speed tooth preparation (0.1–0.3 µm; p < 0.001). Discussion A greater reduction in the number of smaller particles generated by the EOS device was found for high-speed tooth preparation. Low ΔPN by all AGPs demonstrated the efficacy of high-flow suction. Conclusions The additional use of an EOS device should be carefully considered when performing treatments, such as high-speed tooth preparation, that generate particularly small particles when more people are present and all other protective options have been exhausted.

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Section: Discussionmentioning

confidence: 99%

The efficacy of an extraoral scavenging device on reducing aerosol particles ≤ 5 µm during dental aerosol-generating procedures: an exploratory pilot study in a university setting

et al. 2021

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“…In the context of a pandemic, reducing the exposure of dental staff to these bioaerosols is essential. HVE and rubber dam are considered effective measures for reducing the level of contaminated particles in the air and their dissemination on surfaces in the dental treatment room [ 57 ]. Since this issue is of critical importance, most of the CPGs analyzed in our study recommended reducing AGP during dental treatment, combined with the use of methods for minimizing bioaerosols in the air, such as HVE.…”

Section: Discussionmentioning

confidence: 99%

Recommendations for Safe Dental Care: A Systematic Review of Clinical Practice Guidelines in the First Year of the COVID-19 Pandemic

Deana

Seiffert

Aravena‐Rivas

et al. 2021

IJERPH

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In the context of a pandemic, the rapid development of clinical practice guidelines (CPGs) is critical to guide dental staff towards the safe provision of dental care; detailed knowledge of the recommendations will help to achieve the intended results. We carried out a systematic review of the recommendations in clinical practice guidelines (CPGs) on the provision of dental care issued during the first year of the COVID-19 pandemic. A systematic database search was performed in MEDLINE, EMBASE, LILACS, Epistemonikos, and Trip databases to identify documents with recommendations intended to minimize the risk of COVID-19 transmission during dental care. The selection process and data extraction were carried out by two researchers independently. The majority of CPGs recommended the use of rubber dam, high-volume evacuator, mouthwash prior to dental care, four-handed work, and mechanical barriers. The use of aerosol-generating equipment should be avoided whenever possible. In aerosol-generating procedures, the use of a N95 respirator (or similar) is recommended, in addition to a face protector, an impermeable disposable apron/gown, a cap, and gloves. The CPGs developed during the first year of the pandemic offer recommendations which guide dental staff in providing safe dental care, minimizing exposure to SARS-CoV-2 and reducing the risk of COVID-19 infection in the clinical environment. Such recommendations must, however, be updated as new evidence arises.

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“…If the students declare that they cannot place a rubber dam due to the clinical situation of the teeth, the course lecturers assist help them to place it prior to a final decision to perform the treatment under relative isolation. In a systematic review, Samaranayake et al [ 27 ] investigated the efficacy of bioaerosol reduction procedures in dentistry and concluded that employing combination strategies of rubber dam, with a preoperative antimicrobial mouth rinse, and high-volume evacuators may contain bio-aerosols during dental treatment. Large dental treatment rooms have shown certain effects in terms of bioaerosol distribution [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

Dental Education during the COVID-19 Pandemic in a German Dental Hospital

Winter

Frankenberger

Günther

et al. 2021

IJERPH

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Due to the SARS-CoV-2 pandemic, dental treatment performed by undergraduate students at the University of Marburg/Germany was immediately stopped in spring 2020 and stepwise reinstalled under a new hygiene concept until full recovery in winter 2020/21. Patient treatment in the student courses was evaluated based on three aspects: (1) Testing of patients with a SARS-CoV-2 Rapid Antigen (SCRA) Test applied by student assistants (SA); (2) Improved hygiene regimen, with separated treatment units, cross-ventilation, pre-operative mouth rinse and rubber dam application wherever possible; (3) Recruitment of patients: 735 patients were pre-registered for the two courses; 384 patients were treated and a total of 699 tests with the SCRA test were performed by SAs. While half of the patients treated in the course were healthy, over 40% of the patients that were pre-registered but not treated in the course revealed a disease being relevant to COVID (p < 0.001). 46 patients had concerns to visit the dental hospital due to the increase of COVID incidence levels, 14 persons refused to be tested. The presented concept was suitable to enable patient treatment in the student course during the SARS-CoV-2 pandemic.

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The efficacy of bio-aerosol reducing procedures used in dentistry: a systematic review

Cited by 41 publications

References 44 publications

The efficacy of an extraoral scavenging device on reducing aerosol particles ≤ 5 µm during dental aerosol-generating procedures: an exploratory pilot study in a university setting

The efficacy of an extraoral scavenging device on reducing aerosol particles ≤ 5 µm during dental aerosol-generating procedures: an exploratory pilot study in a university setting

Recommendations for Safe Dental Care: A Systematic Review of Clinical Practice Guidelines in the First Year of the COVID-19 Pandemic

Dental Education during the COVID-19 Pandemic in a German Dental Hospital

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