Hi my practice have been using speed increasing hand pieces, the dentist runs it at 40,000rpm and it is not classed as an AGP. There’s a fallow time calculator which explains all of this on FlyNotes which would be beneficial for your dentist to add onto his notes. You complete treatment, put in all the mitigating factors such as high volume suction, rubber dam etc and then it tells you your fallow time for that particular procedure and gives you a unique treatment code which you can copy and paste onto your notes so you could show this to CQC if they asked during an inspection.