{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T00:43:04Z","timestamp":1759970584541,"version":"build-2065373602"},"reference-count":26,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,1,26]],"date-time":"2025-01-26T00:00:00Z","timestamp":1737849600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004263","name":"Research Support Foundation of the State of Rio Grande do Sul (FAPERGS)","doi-asserted-by":"publisher","award":["#06\/2020","001"],"award-info":[{"award-number":["#06\/2020","001"]}],"id":[{"id":"10.13039\/501100004263","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior\u2014Brazil (CAPES)","doi-asserted-by":"publisher","award":["#06\/2020","001"],"award-info":[{"award-number":["#06\/2020","001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dentistry Journal"],"abstract":"<jats:p>Objectives: This randomized clinical trial evaluated the microbiological efficacy and the ergonomic impact of three prototypes of a device to reduce aerosol dispersion during dental procedures. Methods: Sixty patients undergoing dental care using high-speed turbines and\/or ultrasonic tips were randomly assigned to 4 groups (n = 15): CG: control group, with standard personal protective equipment (PPE); G1: PPE + acrylic device (AD) with aspiration; G2: PPE + AD without aspiration; and G3: PPE + polyvinyl chloride device. The device prototypes consisted of a rigid translucent acrylic structure (G1 and G2), or a rigid PVC tube structure surrounded by layers of translucent flexible PVC films (G3), adjusted to the dental chair, involving the patient\u2019s head, neck and chest. The main outcome was the microbiological analysis (mean \u0394 of CFU at 10 different sites), and the secondary outcome was the ergonomic evaluation (questionnaire to dentists and patients). Results: The final sample comprised 59 participants (mean age 38.6 \u00b1 11.4 years, 55.2% male). The overall mean time for dental procedures was 32.4 \u00b1 16.9 min, with no differences between groups (p = 0.348). Microbiological analyses showed that the use of the device significantly reduced contamination in the light reflector (01.46 \u00b1 4.43 \u0394CFU in G2 vs. 19.25 \u00b1 36.50 \u0394CFU in CG; p = 0.028), apron (09.11 \u00b1 12.05 \u0394CFU in G3 vs. 21.14 \u00b1 43.41 \u0394CFU in GC; p = 0.044), and face shield (08.80 \u00b1 32.70 \u0394CFU in G1 vs. 56.78 \u00b1 76.64 \u0394CFU in the GC; p = 0.017). The device was well accepted by patients and increased the dentists\u2018 perception of safety and protection (p &lt; 0.001), but significantly decreased ergonomics related to the clinical view, space, agility and access to the patient, and ease of performing procedures (p &lt; 0.001). Conclusions: The tested device can be an additional tool for infection prevention and control in dentistry, not only during the COVID-19 pandemic, but also for the control of future infectious diseases and epidemics.<\/jats:p>","DOI":"10.3390\/dj13020054","type":"journal-article","created":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T09:42:23Z","timestamp":1737970943000},"page":"54","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Microbiological and Ergonomic Effects of Three Prototypes of a Device to Reduce Aerosol Dispersion in Dental Care During the COVID-19 Pandemic: A Randomized Controlled Clinical Trial"],"prefix":"10.3390","volume":"13","author":[{"given":"Camila N.","family":"Baldasso","sequence":"first","affiliation":[{"name":"Post-Graduate Program in Dentistry, School of Health and Life Sciences, Pontif\u00edcia Universidade Cat\u00f3lica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruy","family":"Teichert-Filho","sequence":"additional","affiliation":[{"name":"Post-Graduate Program in Dentistry, School of Health and Life Sciences, Pontif\u00edcia Universidade Cat\u00f3lica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil"},{"name":"Medical and Dental Center, Military Police of Rio Grande do Sul, Porto Alegre 90010-190, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel R.","family":"Marinowic","sequence":"additional","affiliation":[{"name":"Brain Institute (InsCer), Pontif\u00edcia Universidade Cat\u00f3lica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil"},{"name":"Post-Graduate Program in Medicine and Health Sciences, School of Medicine, Pontif\u00edcia Universidade Cat\u00f3lica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria M.","family":"Campos","sequence":"additional","affiliation":[{"name":"Post-Graduate Program in Dentistry, School of Health and Life Sciences, Pontif\u00edcia Universidade Cat\u00f3lica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil"},{"name":"Post-Graduate Program in Medicine and Health Sciences, School of Medicine, Pontif\u00edcia Universidade Cat\u00f3lica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0394-5400","authenticated-orcid":false,"given":"Maximiliano S.","family":"Gomes","sequence":"additional","affiliation":[{"name":"Post-Graduate Program in Dentistry, School of Health and Life Sciences, Pontif\u00edcia Universidade Cat\u00f3lica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil"},{"name":"Medical and Dental Center, Military Police of Rio Grande do Sul, Porto Alegre 90010-190, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1563","DOI":"10.1021\/acsinfecdis.0c00291","article-title":"COVID-19 and Other Pandemics: How Might They Be Prevented?","volume":"6","author":"Oldfield","year":"2020","journal-title":"ACS Infect. 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