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Ultrasonic Cleaning and its Effects on Denture Biofilm: A Systematic Review
Tong Wah Lim1, Johyun Lee1, Siti Mariam Ab Ghani2
1Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR.
International Dental Journal
|September 25, 2025
Summary
Ultrasonic denture cleaning effectively reduces plaque and microbial load, especially when combined with chemical cleansers. This method is recommended for older adults to improve oral hygiene and prevent related diseases.
Area of Science:
- Oral Health
- Biomedical Engineering
- Microbiology
Background:
- Denture biofilm contributes to oral and systemic health issues.
- Effective denture cleaning is crucial for denture wearers.
- Systematic review to assess ultrasonic cleaning efficacy.
Purpose of the Study:
- Evaluate ultrasonic denture cleaning's effectiveness.
- Assess reduction in plaque quantity and microbial load.
- Analyze changes in denture microbial composition.
Main Methods:
- Systematic review of randomized controlled trials.
- Searched 5 electronic databases and performed manual searches.
- Assessed risk of bias using Revised Cochrane Handbook tools (RoB 2).
Main Results:
- 10 randomized controlled trials were included.
- Ultrasonic cleaning showed positive outcomes in reducing plaque and microbial load.
- Combination with chemical cleansing yielded superior results.
Conclusions:
- Consistent evidence supports ultrasonic cleaning for reducing denture plaque and microbial load.
- Supplementing ultrasonic cleaning with effervescent cleansers is particularly effective.
- Recommended for older adults to manage denture plaque and microbial burden.
