Is it ever OK to use someone else's toothbrush?

Samantha Byrne, associate professor at the University of Melbourne, reports that approximately half of people have shared a toothbrush, often between spouses or family members. While sharing can transfer bacteria, it may not pose a significant risk unless blood-borne diseases are present. Experts advise alternatives, such as using a towel or toothpaste on a finger, if one's toothbrush is unavailable.

Summary by Glance · ABC News – Australia