Patients are being reminded that they have the right to move from one dentist to another if they are not happy with their treatment.
Nigel Carter, chief executive of charity the British Dental Health Foundation, said people are free to shop around, although many might not be aware of this.
Dr Henrik Overgaard-Nielsen from the BDA told ITV's Daybreak that the OFT report gave a misleading view of dentists, as the vast majority of patients were happy with their treatment.
Consumer campaign group Which? said the findings of the OFT report had come as no surprise.
Dr Susie Sanderson, chair of the BDA's executive board, said that research clearly showed the vast majority of patients were happy with the care they receive.
She attacked what she described as the "OFT's headline-grabbing approach to publicising this report", as it did not provide a balanced view.
"That it has chosen to ignore what it knows about patient satisfaction and instead focus on a very small number of cases where it believes it has identified problems is disappointing."
Dentists are deliberately misleading their patients about the costs of treatment and encouraging them to pay for private care, according to the Office of Fair Trading. Their report calls for stronger action against dentists who are not working in the best interest of their patients.
Dentists may be misleading their patients about their NHS entitlements in a bid to make them pay for private care, a watchdog has said.
Half a million patients a year may have unnecessarily paid to receive private dental treatment after receiving inaccurate information from their dentist about health service entitlements, an Office of Fair Trading (OFT) study found.
Patients are given insufficient information to make informed decisions about their choice of dentists and the treatments they receive, and the dental industry is not always working in their best interest, the report said.