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Imaging and Quantification of the Area of Fast-Moving Microbubbles Using a High-Speed Camera and Image Analysis
Published on: September 5, 2020
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Application of micro-bubbles on oral care
Pei-Ju Lin1, Ming-Chuen Chuang1, Szu-Chung Chang2
1Institute of Applied Arts of Industrial Design Department, National Chiao Tung University, Taiwan.
Summary
A modified micro-bubble generator with a teeth-tray effectively removes over 98% of denture plaque. Optimizing nozzle size and flow velocity enhances plaque removal efficacy for potential human dental applications.
Area of Science:
- Biomedical Engineering
- Dental Technology
- Fluid Dynamics
Background:
- Plaque accumulation on dental prosthetics poses hygiene challenges.
- Effective plaque removal is crucial for maintaining oral health and prosthetic longevity.
Purpose of the Study:
- To propose and verify a novel method for plaque removal using a modified micro-bubble generator and a specialized teeth-tray.
- To investigate the influence of key device parameters on plaque removal efficacy.
Main Methods:
- Utilized a micro-bubble generator with variable rotation speeds, nozzle sizes, and teeth-tray ejection pore diameters.
- Assessed the impact of these variables on ejected flow characteristics and plaque removal efficiency from dentures.
Main Results:
- Achieved over 98% plaque removal using a large ejection pore (4.8 mm) teeth-tray and the largest nozzle (1.2 mm).
- Larger nozzle and pore diameters generally increased plaque removal; higher flow velocity and smaller micro-bubbles improved cleaning efficacy.
Conclusions:
- Micro-bubble technology demonstrates significant potential for effective plaque removal, initially validated on dentures.
- Findings on critical design parameters provide a foundation for developing advanced micro-bubble cleaners for human oral hygiene.

