Research carried out by Oral B has revealed that having bad teeth can age a person by up to 13 years, it has been revealed.

According to the Daily Mail, Britons worried about the state of their smile might be interested in teeth whitening treatments after the study showed that on average, discoloured teeth could significantly increase how old a person appears to be.

Dr Phil Stemmer, dental ambassador for Oral B, said: "Teeth are important to the way you look and how confident you feel but it also has an impact on your overall health which can often be overlooked."

Meanwhile, Cosmetic Dentistry Guide recently revealed that maintaining the right pH balance in the mouth is important to help stop teeth prematurely aging.

It noted that excessive brushing can erode tooth enamel, as can having insufficient levels of saliva in the mouth. Therefore, it is important to remain well hydrated and not go overboard on oral health routines.