Related Experiment Video
Updated: Jun 25, 2026

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth
Published on: March 27, 2026
Comparison of the plaque-removing efficacy of toothpaste and toothpowder
Muhammad Khalil Khan1, Ayyaz Ali Khan, Tasleem Hosein
1Department of Periodontology, Fatima Jinnah Dental College, Karachi, Pakistan. mkhalilk@yahoo.com
Background:
Removing dental plaque may play a key role in maintaining oral health. Methods for oral hygiene vary from country to country and from culture to culture. Chewing sticks (miswak) and toothpowders are popular oral hygiene tools in Pakistan.
Objective:
To compare the plaque-removing efficacy of toothpaste and toothpowder with and without manual toothbrushes.
Materials And Methods:
The study was designed as an examiner-blind crossover study. The Silness and Löe plaque index was used to evaluate the plaque distribution. Thirty-six volunteer dental students were recruited for the experiment. After scoring, the subjects were randomly divided into two groups. The first group was asked to brush with toothpaste or toothpowder according to a split mouth protocol. The second group was asked to follow the same protocol except they were asked to use their finger instead of the brush. The remaining plaque was scored again.
Results:
Plaque-removing efficacy of the toothpowder was higher whether it was used with brush or with finger. There was a significant difference between paste and powder users (p = 0.009).
Conclusion:
The results of this study indicate that toothpowder is an effective means to remove plaque with a brush.

