I had four teeth replaced after my fall, admittedly they’re on a plate and not a bridge, but they only charged me £2000 and I got some of it back because of my dental insurance. The dentist is a private one.
I would definitely challenge their quote, Nia Miss. It’s ridiculous!
I would query that estimate Nia Miss, it's a lot for two teeth and a bridge. DIL has often mentioned that she is making a bridge for new teeth and how much things cost and I don't remember amounts like that. Maybe a full set of false teeth but not two.