There were more than 45,000 hospital operations to remove teeth from teenagers and children last year, figures show.
That equates to around 180 each working day and has sparked calls for immediate action to tackle sugar consumption.
The Local Government Association (LGA), which represents 370 councils in England and Wales, said the figures – up 18% in the past six years – are likely to reflect poor oral hygiene as well as the excessive consumption of sugary food and drinks.
UK youngsters are the biggest consumers of soft drinks in Europe – with two out of five (40%) 11 to 15-year-olds drinking sugary drinks at least once a day.
The LGA’s analysis of NHS spending data found there were 45,077 extractions of multiple teeth in under-18s in England in 2017/18 – costing £38.9 million. That’s up 18% from the 38,208 in 2012/13, which cost £27.4 million.
Ian Hudspeth, chairman of the LGA’s community wellbeing board, said: “These figures, which have risen sharply, highlight the damage that excessive sugar intake is doing to young people’s teeth.
“The fact that, due to the severity of the decay, 180 operations a day to remove multiple teeth in children and teenagers have to be done in a hospital is concerning and also adds to current pressures on the NHS.”
“This trend shows there is a vital need to introduce measures to curb our sugar addiction which is causing children’s teeth to rot.
“There must be a reinvestment in innovative oral health education so that parents and children understand the impact of sugar on teeth and the importance of a good oral hygiene regime.”
The Government announced sugar reduction guidelines for nine food categories in March 2017, but the LGA is calling for councils to have a say in deciding where the revenue from the soft drinks levy – which has raised £154 million since its introduction – is spent.
It said the Government also needs to reverse £600 million in reductions to councils’ public health grants between 2015/16 and 2019/20, used to fund oral health programmes and initiatives to tackle childhood obesity.
British Dental Association (BDA) chairman Mick Armstrong said: “The Government says prevention not cure is the mantra, but still treats dentistry as an optional extra.
“Tooth decay remains the number one reason for hospital admissions among young children, but ministers have not put a penny of new investment into early years prevention.
“In the NHS’s 70th year ministers need to offer more than unfunded gimmicks. We require a dedicated and properly resourced national effort to end the scandal of childhood decay.”
An NHS England spokesman said: “NHS dental care for children is free and tooth decay is preventable, but eating sugary food and drinks is driving this unfortunate and unnecessary epidemic of extractions.
“NHS England is working with the dental profession, local authorities and health providers and has developed Starting Well – a campaign targeted at high-need communities to help children under five see their dentist earlier and improve their dental health.”