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ORIGINAL RESEARCH Table of Contents   
Year : 2014  |  Volume : 25  |  Issue : 2  |  Page : 160-165
Effect of chlorhexidine, povidone iodine, and ozone on microorganisms in dental aerosols: Randomized double-blind clinical trial


1 Department of Periodontics, Christian Dental College, Ludhiana, Punjab, India
2 Department of Oral and Maxillofacial Surgery, Christian Dental College, Ludhiana, Punjab, India
3 Department of Periodontics, College of Dental Sciences, Davangere, Karnataka, India
4 Department of Oral and Maxillofacial Surgery, College of Dental Sciences, Davangere, Karnataka, India

Correspondence Address:
K L Vandana
Department of Periodontics, College of Dental Sciences, Davangere, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9290.135910

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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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