Ours reopened yesterday, we had a phone call telling us of the new procedures, but as we only needed to see the Hygienist we said that we would cancel and wait for a bit.
So you wait outside in your car until they ring you. They take your temperature you then go straight into the surgery, (no using the loo) they have screens and are all wearing protective clothing, gloves and the Perspex face masks with ordinary masks underneath.( Sounds uncomfortable for them too.) They allow time between each patient for a clean down and a change of clothing after you have left. So not many patients per day.
They are open for emergencies, so if all else fails we have that to fall back on.