DS is 8 and still refusing to open his mouth for the dentist. He went to my dentist appointments with me from when he was a baby until he started school, he now comes when his older sister goes, but we have never got him to open his mouth.
A couple of years ago, our dentist referred him to a special care dentist, but whilst there's been a bit of progress in terms of him smiling a little in the sessions, he is still absolutely refusing to open his mouth - or sit on the chair. The dentist has tried making him laugh, asking him to brush his teeth, asking him to let me brush his teeth, using a puppet, relaxation techniques like "imagine you are on a beach ..." (which he hated), sitting him on my lap, getting him in once a month, taking a break for a few months. We've seen two different special care dentists (the first one retired earlier this year). They seem to have run out of ideas so am hoping some wise MNers have got some!
For background, he has general anxiety issues and selective mutism, so there is I think a connection. The SM has hugely improved in the last few months at school, but no improvement at all at the dentist.