4. James, P., Worthington, H. V., Parnell, C., Harding, M., Lamont, T., Cheung, A., Whelton, H., & Riley, P. (2017). Chlorhexidine mouthrinse as an adjunctive treatment for gingival health. The Cochrane database of systematic reviews, 3(3), CD008676.
5. Vergara-Buenaventura, A., & Castro-Ruiz, C. (2020). Use of mouthwashes against COVID-19 in dentistry. The British journal of oral & maxillofacial surgery, 58(8), 924–927.
6. Yan, C. H., & Bleier, B. S. (2020). Prophylactic and therapeutic topical povidone-iodine in coronavirus disease 2019 (COVID-19): What is the evidence?. International forum of allergy & rhinology, 10(12), 1271–1273.