The procedure was carried out by the Community Dental Service at Worcestershire (Representation Image).
In the United Kingdom, another woman whose denier had disconnected all her teeth in the NHS blow, was criticized for "dramatic" complete extractions from other vulnerable patients.
Rachel Johnston performed an operation in October after it was considered necessary due to severe tooth decay. The procedure was carried out by the Community Dental Service at Worcestershire.
But the 49-year-old collapsed hours after being discharged and the days spent in support of a car's life in a hospital before her family devastated was told in November that doctors could no longer save them, BBC reported.
Two more families have informed the BBC about their concerns about the service after their sons had the same "extreme" attitude without their knowledge.
In both cases, they expected their siblings, who had learning abilities, to remove a small number of teeth, but were left shocked when they appeared in theater surgery without dental teeth.
The Worcester Health and NHS Trust, which manages dental care, insisted that it followed the proper procedures for vulnerable patients, while the three Worcestershire Clinical Ordering Groups were investigating Johnston's death.
Campaign participants have said that they are often told that they have poor communication between patients with disabilities and their families and that dentists should intervene earlier in order to avoid the removal of each tooth in the mouth of a person.
"Under no circumstances should such an extreme situation be a surprise," said Sarah Coleman of Mencap, a charity based in the UK working with people with learning ability.
The National Health Service (NHS) is a publicly funded national healthcare system that manages Community dental care throughout the UK to care for people who are having difficulty going to a dentist.
Dentists must receive informed consent before receiving treatment.