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Laboratory plaque reduction by three floss products
Samuel L Yankell1,2, Xiuren Shi2, Christine M Spirgel2
1Dept of Periodontics, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA, yrcinc@aol.com.
American Journal of Dentistry
|January 11, 2020
Summary
GUM Expanding floss demonstrated superior plaque removal compared to Reach Mint Waxed and Oral-B Glide Pro-Health Deep Clean. Higher flossing pressure significantly increased plaque removal for GUM Expanding and Reach Mint Waxed flosses.
Area of Science:
- Oral hygiene research
- Dental biomaterials
- Periodontal disease mechanisms
Background:
- Dental plaque accumulation is a primary etiological factor in caries, gingivitis, and periodontal disease.
- Effective mechanical removal of plaque via interdental cleaning aids is crucial for oral health.
- Comparative studies evaluating the efficacy of different dental floss types are essential for product development and consumer guidance.
Purpose of the Study:
- To develop and validate a novel laboratory method for assessing artificial plaque removal efficacy.
- To quantitatively compare the plaque reduction capabilities of GUM Expanding floss, Reach Mint Waxed floss, and Oral-B Glide Pro-Health Deep Clean floss.
- To investigate the influence of varying flossing pressures on the plaque removal effectiveness of these dental floss products.
Main Methods:
- A standardized laboratory testing device was utilized to simulate interproximal flossing.
- Artificial plaque was applied to posterior-shaped teeth, and floss samples were subjected to controlled mechanical action.
- Plaque removal was quantified by measuring the maximum depth of plaque removed, with statistical analysis performed using Tukey's test and t-tests.
Main Results:
- GUM Expanding floss exhibited significantly greater mean plaque depth removal than both Reach Mint Waxed and Oral-B Glide Pro-Health Deep Clean flosses across tested pressures (50g and 150g).
- Reach Mint Waxed floss demonstrated superior plaque removal efficacy compared to Oral-B Glide Pro-Health Deep Clean floss at both 50g and 150g pressures.
- Increased flossing pressure from 50g to 150g significantly enhanced plaque removal for both GUM Expanding floss and Reach Mint Waxed floss.
Conclusions:
- GUM Expanding floss shows superior efficacy in reducing artificial plaque depth compared to Reach Mint Waxed and Oral-B Glide Pro-Health Deep Clean.
- The findings suggest that GUM Expanding floss may be an effective option for the treatment and reduction of plaque and associated oral diseases.
- The developed laboratory method provides a reliable platform for evaluating the comparative efficacy of interdental cleaning devices.

