Toothbrush samples (IMAGE)

Northwestern University

Toothbrush samples

Caption

A researcher removes bristles from a toothbrush for the study.

Credit

Northwestern University/Big Ten Network

Usage Restrictions

None

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.