A lot of people suffer from bad breath, but may be unaware of it.

Bad breath is usually caused by bacteria in the mouth. It can also be caused by gum disease or tooth decay, as well as certain medications.

For our weekly medical consultation we were joined by Dr Paul O'Dwyer, Group Clinical Advisor at Dental Care Ireland.

He gave some advice on beating bad breath, including how to brush your teeth correctly.

Listen to the interview in full by pressing the play button on this page.