To have all your teeth removed and replaced with implants is a fairly drastic step. There may be other treatment options available to you.
All practices charge different fees, but as a ball park guide for full arch implant retained bridgework you would be likely to spend upwards of £15,000 per arch.
As I say this may not be the most appropriate treatment option for you.
The best thing to do would be to have consultation with a dentist who can look at your dental condition, disucss what you hope to achieve and then work with you to build a plan for moving forward.
I hope that this helps.
Fergus and Glover
160 Union St Aberdeen AB10 1QT
Web : www.fergusandglover.co.uk Tel: 012 246 44876