First thing first
You need to know reason why bridge work out?
If its worn out becase of bite!
Be mentally prepared anything replacing teeth will be worn unless the reason is corrected
It doesnt matter what you put there!
Zirconia is metal free is better option costs usually 15 upwards for single unit
Metal ceramic usually cost 6k onwards depending upon technique used
Next Steps
Consult good prosthodontist
Health Tips
Cheap is not always economical!! Its your teeth which you use daily quite good number of times
Choose wisely