The proposed changes into the way dentists are paid could mean they do even less work for the NHS, according to a damning report by the National Audit Office.
We had a huge number of e-mails - from patients and dentists.
A new charging structure, due to come into force next Autumn, is intended to put an end to the system of paying for each individual piece of work.
Critics say that's encouraged dentists to "drill and fill", rather than working on preventative treatments for their patients.
But, according to the National Audit Office, dentists may end up scaling back their NHS work, because they're sceptical about the new payment system.
And they're concerned that the new system will encourage "under treatment" rather than over treatment.
At the moment, only 41% of adults are registered with a dentist at all.
Many people choose to ignore their teeth until they're in pain - but in some areas, it's almost impossible to find an NHS dentist.
In an attempt to combat shortages, the government has already increased training places and recruited 1,000 new dentists.
The reforms to NHS dentistry apply in England and Wales only. Scotland has its own system.
Finding a dentist
We've had a lot of e-mails this morning from people who are having trouble finding a dentist to take them on.