Blasting Dental Plaque With Microbubbles (IMAGE) Tohoku University Caption The researchers used a certain type of nozzle to create the cavitation bubbles which removed the plaque when they collapsed. Credit Hitoshi Soyama Usage Restrictions Credit: Hitoshi Soyama License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.