Children should not eat too much sugary produce.
Dentists should advise parents not to give their children food and drink that is high in sugar and acid.
This is because Professor Damien Walmsley, scientific adviser to the British Dental Association, noted it can be damaging to youngsters' oral health.
He added fizzy drinks are among the worst items that kids can get their hands on and so their usage should be restricted to meal times.
"As well as ensuring that a child's dietary intake minimises any negative effect on oral health, it's also important that children are taken to visit a dentist regularly," Prof Walmsley remarked.
If mums and dads are looking for a way to get their kids interested in oral hygiene, then purchasing character toothbrushes can be a good start.
Kathy Harley, dean of the dental faculty at the Royal College of Surgeons, recently told the Daily Mail that children need to be careful not to drink too much fruit juice.