I think dentistry is a very different case to the gp situation. It is pretty difficult to find a good nhs dentist, the trappings of private practise seem to appeal to dentists much earlier than doctors (generalising I know but that’s how it seems) perhaps nhs funding for dentists isn’t competitive or perhaps there isn’t the obligation to work for the nhs that there clearly is for doctors, I don’t know. As for the lack of diagnoses I guess that’s largely down to the things I mentioned above but also gp’s seem largely unwilling to pass on to a specialist if they think it could be potentially temporary/a mild inconvenience. I’m willing to stand corrected if this isn’t the case, I wouldn’t want to do the job.