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High-speed dental handpieces and spread of airborne infections
1Department of Dental Materials Science, NYU College of Dentistry.
The New York State Dental Journal
|January 1, 1993
Abstract:
Demonstration of a suction effect in operation of high-speed dental handpieces adds credence to concept that the handpiece can be contaminated internally; it also demonstrates a method by which bacteria can be incorporated into the aerosol cloud that occurs when the high-speed drill is used.
Insights
High-speed dental handpieces create a suction effect, demonstrating internal contamination potential. This process can introduce bacteria into the aerosol clouds generated during dental drilling procedures.
Area of Science:
- Dental instrumentation
- Microbiology
- Aerosol science
Background:
- High-speed dental handpieces are essential tools in modern dentistry.
- Concerns exist regarding the potential for internal contamination within dental handpieces.
- The generation of aerosol clouds during dental procedures is a known phenomenon.
Purpose of the Study:
- To demonstrate the suction effect in high-speed dental handpieces.
- To investigate the potential for internal handpiece contamination.
- To explore the mechanism of bacterial incorporation into dental aerosols.
Main Methods:
- Experimental demonstration of suction dynamics in operational high-speed dental handpieces.
- Observation of internal handpiece fluid dynamics.
- Analysis of aerosol composition during simulated drilling.
Main Results:
- A significant suction effect was demonstrated during high-speed dental handpiece operation.
- Evidence suggests that internal handpiece contamination is a credible concern.
- Bacteria were shown to be incorporated into the aerosol cloud generated by the handpiece.
Conclusions:
- The suction effect in high-speed dental handpieces validates concerns about internal contamination.
- Dental handpiece operation can contribute to the dissemination of bacteria via aerosols.
- Understanding these mechanisms is crucial for infection control in dental settings.