Dentist settles debate on how often you should really replace your toothbrush

Using an old toothbrush to brush your teeth can "do more harm than good" when it comes to your oral health, a dentist has warned. With lots of conflicting advice on how often to replace your toothbrush and what is most effective to keep your teeth and gums clean and healthy, we called in a dental expert to share the definitive timeline you need to know and why regular replacements are more important than you might think.

How often should I change my toothbrush?

"Toothbrushes don’t last as long as many people think. As a general rule, best practice is to replace your toothbrush - or electric toothbrush head - after three months of daily use," says Dr Lydia Sharples, Senior Cosmetic Dentist at Bespoke Smile . "Over time, toothbrush bristles will fray and lose their shape, preventing th