Australasian Dentist Magazine Nov Dec 2021

Why Use A Preprocedural Rinse? The bioaerosols generated during dental procedures pose a potential risk for the spread of infections to dental personnel and patients. (1,2) Patterns of bacterial splatter and aerosol can be used to understand how a virus can spread during dental procedures. Even when a high-volume suction is used, there can be positive contamination. (3) The most heavily contaminated areas are an operator’s face (this may be possible even under the visor and mask), arm nearest the patient, and the patient’s body. The assistant’s face and arm are also often in the contamination zone. (3) (1) V. Costa Marui, M.L.S Souto, E.S. Rovai, G.A. Romito, L. Chambrone, C.M. Pannuti, (2019) Efficacy of preprocedural mouth rinses in the reduction of microorganisms in aerosol: A systematic review, The Journal of American Dental Association (JADA), Vol 150 (12) (2) S.K. Harrell, J. Molinari (2004). Cover Story, JADA, Vol 135. (3) N. Innes, I.G. Johnson, W. Al-Yaseen, R. Harris, R. Jones, S. KC, S. McGregor, M. Robertson, W.G. Wade, J.E. Gallagher (2020) A systematic review of droplet and aerosol generation in dentistry, Elsevier Public Health Emergency Collection When an effective preprocedural rinse is used, there is a mean reduction in the number of colony forming units of 64.8% when compared with control. (1) 300cm long range exposure 180cm short range exposure What generates an aerosol? Infectious aerosols can contain Ultrasonic Scalers Common Oral Bacteria Air Polishing Devices Viruses 3 Way Syringes (1,2) Other Infectious Agents (1) Dental Handpieces Pathogenic Bacteria Aerosols can stay suspended in the air for up to four hours after dental procedures and can travel distances of up to three metres from the original source. This can result in dental personnel being exposed, as infected aerosols can linger past when protective equipment is removed. (1,2) How aerosols spread in the dental surgery the , ) Patterns of bacterial splatter and aerosol can be used to understand how a virus can spread during dental procedures. Even when a high-volume suction is used, there can be positive contamination. (3) The most heavily contaminated areas are an operator’s face (this may be possible even under the visor and mask), arm nearest the patient, and the patient’s body. The assistant’s face and arm are also often in the contamination zone. (3) (1) V. Costa Marui, M.L.S Souto, E.S. Rovai, G.A. Romito, L. Chambrone, C.M. Pannuti, (2019) Efficacy of preprocedural mouth rinses in the reduction of microorganisms in aerosol: A systematic review, The Journal of American Dental Association (JADA), Vol 150 (12) (2) S.K. Harrell, J. Molinari (2004). Cover Story, JADA, Vol 135. (3) N. Innes, I.G. Johnson, W. Al-Yaseen, R. Harris, R. Jones, S. KC, S. McGregor, M. Robertson, W.G. Wade, J.E. Gallagher (2020) A systematic review of droplet and aerosol generation in dentistry, Elsevier Public Health Emergency Collection When an effective preprocedural rinse is used, there is a mean reduction in the number of colony forming units of 64.8% when compared with control. (1) 300cm long range exposure 180cm short range exposure ltras ic Scalers ral acteria ir lis i Devices ir ses ay Syrin es (1,2) t er I fecti s ents (1) e tal an ieces at e ic acteria r s ls c st s s i t ir f r t f r rs ft r t l r c r s a ca trav l ista c s f t t r tr s fr t ri i al s rc . This can result in ental ers nnel ein ex se , as infected aerosols can linger past hen protective equip ent is re oved. (1,2) r s ls s r i t t l s r r