We clean our teeth the wrong way. We get different information from dentists, dental textbooks and toothpaste instructions. They tell us five ways of brushing. The toothbrush moves along the teeth in circular movements. Researchers say we should move the toothbrush backwards and forwards instead.

A professor said we need good information on tooth-brushing. We should not brush more than twice a day. This damages the tooth. We should brush for two to three minutes and not press hard. We shouldn't clean our teeth after eating. This can damage our teeth. We should also clean our tongue.