Office for Health Improvement and Disparities figures show about 15 children aged 19 or younger in Mansfield had at least one tooth removed in hospital due to decay in 2020-21.
It meant about 60 in every 100,000 children in Mansfield underwent a tooth extraction as a result of decaying teeth last year, down from 121 in 2019-20.
Across England, 14,645 youngsters had rotten teeth removed, compared with 35,190 before the pandemic.
Nationally, 22,549 tooth extractions were completed in 2020-21, a 58 per cent decrease from 55,137 the year prior.
The BDA warned the variation in teeth extraction rates highlights differing oral hygiene standards across the country, especially between deprived and affluent areas, and said the backlog caused by the pandemic will affect worse-off areas more.
Dr Charlotte Waite, BDA England Community Dental Services Committee chairman, said: “The failure to tackle the backlog will hit those in our most deprived communities the hardest.
“It is the nation's poorest children who will feel the results as they struggle to eat, sleep and study.”
The Dental Wellness Trust branded the national drop in extractions ‘shocking’ and urged the Government to take urgent action to address the backlog.
Dr Linda Greenwall, founder of the oral hygiene charity, said: “Following the pandemic lockdowns, dental practices being forced to close and children consuming food and drinks packed with excessive sugar, many are now suffering agonising pain, cannot sleep at night or concentrate at school and end up missing classes.”
The BDA said the dramatic reduction in teeth extractions is almost solely down to the pandemic and not an indication of a change in demand or improving oral hygiene.
The Department for Health and Social Care said it has provided £50 million to fund up to 350,000 additional NHS dental appointments.
It said dentists prioritised vulnerable groups throughout the pandemic and provided free care to the neediest groups.
A spokesman said: “We are committed to levelling up dental health across the country.”