Numbersguy.
The dental isn't done till after a successful FSP. If they find anything that needs doing, they will make you (out of your own pocket) rectify this before enlistment. I had mine at Raaf Amberley and seeing I hadn't been to the dentist in lets say, years, I got lucky and had no problems. Not so the guy before me who needed wisdom teeth out and a whole bunch of work which according to the dentist was going to be thousands! If you listened to your Mum and brush twice a day and you should be cool!