Hundreds of people queued for hours outside an East Yorkshire dentist in a bid to register as private patients.
The practice in Driffield said it would have to lose some of its patients when it went private leading to people queuing around the building.
Partner Robert Quarmby said the surgery was being forced to opt out of the NHS due to lack of funding.
Earlier this year hundreds of people queued to register as NHS patients at a dentist in Scarborough.
Lack of funding
Mr Quarmby said: "What we need to give our patients is time and care.
"Within the NHS there isn't the funding to be able to do that because of the number of patients we have."
A statement from the North and East Yorkshire and North Lincolnshire Strategic Health Authority said there were plans to expand dental services in the area and people should not need to go private.