Effect of chlorhexidine, povidone iodine, and ozone on microorganisms in dental aerosols: Randomized double-blind clinical trial

Autor: Ravleen Kaur, Inderjot Singh, K L Vandana, Rajendra Desai
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Indian Journal of Dental Research, Vol 25, Iss 2, Pp 160-165 (2014)
Druh dokumentu: article
ISSN: 0970-9290
1998-3603
DOI: 10.4103/0970-9290.135910
Popis: Objective: Dental handpieces, ultrasonic scalers, air polishers, air abrasion units produce the most visible aerosols. The objective of this study was to assess the effect of chlorhexidine (CHX), povidone iodine (PI), and ozone (OZ) on the microorganisms in dental aerosols. Materials and Methods: A total of 60 patients were included in this study, they were randomly assigned into three groups and were subjected to scaling before and after rinsing with 0.2% CHX, 1% PI or irrigation with OZ. Blood agar plates were used to collect the gravitometric settling of aerosols and were sent for aerobic and anaerobic culture. Results: The results demonstrated high percentage reduction of aerobic and anaerobic colony forming units (CFUs) in all three groups. In aerobic CFUs, CHX showed the highest reduction (57%) at mask position whereas at chest position and at 9 ft, PI showed higher CFU reductions (37% and 47%, respectively). In anaerobic CFUs, CHX showed the highest percentage of reduction at chest level (43%) and at 9 ft (44%). Conclusion: CHX, PI and OZ showed similar effects in reducing aerobic and anaerobic CFU′s at the chest mask and at 9 ft. OZ can be used as a preprocedural agent, considering its beneficial effects.
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