One in every nine three-year-olds in Lancashire has rotten teeth.
The British Dental Association says dental health inequalities across the country could “go from bad to worse” after the coronavirus pandemic if the Government does not support services which have faced disruption.
Public Health England data shows that 10.9 per cent of children surveyed in Lancashire over the last two school years had experienced some form of dental decay.
Where decay was reported, the youngsters had an average of three rotten teeth.
Those surveyed in 2019 and 2020 were among 3,300 three-year-olds across the North West to be examined, where 13.7 per cent of children had rotten teeth on average.
Across England as a whole, 10.7 per cent of three-year-olds had reportedly experienced tooth decay, the report revealed.
The data, drawn from a sample of almost 20,000 three-year-olds from across the country, found wide regional variations.
Pre-school age children living in Yorkshire and The Humber were more than twice as likely to have experience of dental decay (14.7 per cent) than children living in the East of England (6.7 per cent).
The authors of the report wrote: “Dental decay is largely a preventable disease.
“Poor oral health impacts on children and families affecting children’s ability to eat, smile and socialise and causing pain and infection with days missed at nursery, and for parents work, to attend the dentist and hospital to have teeth out.”
The British Dental Association says tooth decay is the number one reason for child hospital admissions nationally.
Eddie Crouch, BDA chairman, said: “In a wealthy 21st century nation there’s no reason why decay and deprivation still go hand in hand.
“Sadly, millions of missed appointments, lockdown diets and the suspension of public health programmes mean things are set to go from bad to worse when it comes to health inequality.
“It’s time for real commitment from the Government if we’re going to avert an oral health crisis.”
Mr Crouch added that ministers must offer support for services “facing a deeply uncertain future” to prevent an oral health decline.
A Department of Health and Social Care spokesperson said: “The Government is committed to the effective measures to improve the oral health of children, which is why we will be consulting on supervised toothbrushing and removing barriers around water fluoridation.
“We have also taken significant action to reduce the sugar content in food and drink almost 44 per cent of sugar cut from drinks thanks to the Soft Drinks Industry Levy.”
They added that a new NHS rule requiring dental practices to hit 60% of their pre-COVID activity until October “is expected to improve access to vital dental services and target groups with the highest needs”.