Reduction of Aerosols Generated from the Dental Handpiece

Ting-Yin Ji, Chih-Yung Wu, Yung-Chung Chen, Chun-Juei Chou, MING-YENG LIN, National Cheng Kung University

     Abstract Number: 585
     Working Group: Control and Mitigation Technology

Abstract
During dental treatment using the dental handpiece, a high concentration of aerosol is generated. This can have serious health implications with prolonged exposure. Moreover, water mist generated from the dental handpiece can also cause discomfort among patients and health workers. While current solutions like local exhaust ventilation (LEV) are effective, they can be bulky and inconvenient. Our proposal offers a promising alternative-the use of an air curtain for dental aerosol and water mist control. This innovative approach, the first of its kind, could potentially revolutionize dental aerosol and water mist reduction, making it more efficient and user-friendly.

We will first use Particle Image Velocimetry (PIV) to monitor the flow field and aerosol reduction efficiency under different parameters, such as the opening width and flow rate of the air curtain device. We then use MATLAB image processing to evaluate the aerosol and water mist reduction efficiency. Preliminary results indicate that adding an air curtain can help confine over 70% of the dental aerosol and water mist. This novel device will not only help reduce dental aerosol and water mist but also make future dental visits more comfortable and safe for both patients and health workers.