Dental study raises questions about oldest humans

A team of international researchers has suggested that the common ancestors linking modern man to the first humans have not yet been discovered. In a study of dental fossils, they found that none of the species previously thought to be the last common ancestors of...

The Ugly Truth About Your Toothbrush (Part 2)

Do Toothbrush Sanitizers Really Work? Various products pledge to sanitize your toothbrush. Some say they kill bacteria with heat or ultraviolet light, germ-killing sprays, or rinses. Others have built-in antibacterial bristles. There’s evidence that at least...

The Ugly Truth About Your Toothbrush (Part 1)

Do you know what’s lurking on your toothbrush? Your toothbrush is loaded with germs, say researchers at England’s University of Manchester. They’ve found that one uncovered toothbrush can harbor more than 100 million bacteria, including E. coli...

Detecting dental caries: Is there anything new?

Dental caries is still one of the most prevalent but preventable diseases in the world. There is increasing evidence that those with poor oral health have poorer general health outcomes as well. Whether this is a causative relationship or an association with other...