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Minerva Dental and Oral Science 2022 August;71(4):206-11

DOI: 10.23736/S2724-6329.22.04627-7

Copyright © 2022 EDIZIONI MINERVA MEDICA

lingua: Inglese

The prevalence of positive patients to COVID-19 rapid nasopharyngeal antigen testing in private dental practices

Alberto DE STEFANI, Sam HATAMI ALAMDARI, Alice MUNERATTO, Antonio GRACCO, Giovanni BRUNO

School of Dentistry, Department of Neuroscience, University of Padua, Padua, Italy



BACKGROUND: A quick diagnosis is crucial in effectively limiting the spread of SARS-CoV-2. The study aims to assess the prevalence of positive rapid tests in private dental practices.
METHODS: This is an observational study. 532 COVID-19 rapid nasopharyngeal antigen tests were carried out in the Veneto region of Italy. Patients of 4 dental practices in different cities (Caorle, Montebelluna, Treviso and Vicenza) were screened with a rapid test (Rapid Test COVID-19 Ag immunochromatographic assay, Techno Genetics) throughout November and December 2020. All the positive results from rapid tests were further investigated with a molecular test (PCR). All the patients tested showed no symptoms associated with SARS-CoV-2 infection and had already undergone triage and temperature measurement. In total 532 tests were taken: 202 in Caorle (Venice), 130 in Montebelluna (Treviso), 100 in Treviso, and 100 in Vicenza. Statistical analysis was carried with the computing environment R version 3.2.1 (R Foundation for Statistical Computing, Vienna, Austria). In particular, R was used for estimating the P value of the χ2 test. The test was considered significant if the P value was lower or equal to 0.05.
RESULTS: The prevalence of the rapid tests that resulted positive was 7.14% (38 out of 532 in total, 22 out of 202 in Caorle, 6 out of 130 in Montebelluna, 4 out of 100 in Treviso and 6 out of 100 in Vicenza). Among these patients, 36 tested positive also with a molecular test (94.74%), in particular, 21 in Caorle, 5 in Montebelluna, 4 in Treviso, and 6 in Vicenza.
CONCLUSIONS: The prevalence of positive patients screened with a rapid test in private dental practices stands at 7.14% and it was confirmed in most of the patients with molecular tests. Therefore, in high-risk environments like dental practices, it is imperative to follow all the precautionary measures, and having every patient tested with a rapid test could be taken into consideration to limit the spread of COVID-19 infection.


KEY WORDS: SARS-CoV-2; COVID-19; General practice, dental

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