Efficacy of pre-procedural rinsing in reducing aerosol contamination during dental procedures

Bharathi Purohit, Harsh Priya, Shashidhar Acharya, Meghashyam Bhat, Mamtha Ballal

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Our objective was to determine the efficacy of pre-procedural rinsing with chlorhexidine in reducing bacterial aerosol contamination during use of ultrasonic scaler and high speed air turbine handpiece. Twenty patients, ten each for the two groups who were found to satisfy the inclusion criteria were selected for the study. Four predesignated locations of the dental clinic were chosen to be evaluated for each patient using blood agar plates. Aerosols were collected during treatment procedures for control and experimental quadrants. Results showed that a regimen of 30-seconds pre-procedural rinsing with 0.12% chlorhexidine gluconate before dental procedures consistently reduced colony-forming units than without rinsing due to the ability of antiseptic mouthwash to inhibit microbial growth. There was more aerosol contamination during scaling procedures than during the use of a high speed air turbine handpiece. The conclusion is that chlorhexidine is an effective primary measure in reducing aerosol cross-contamination when using dental devices in a dental set up.

Original languageEnglish
Pages (from-to)190-192
Number of pages3
JournalJournal of Infection Prevention
Issue number6
Publication statusPublished - 01-11-2009

All Science Journal Classification (ASJC) codes

  • Advanced and Specialised Nursing
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases
  • Health Policy


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