Feedback or cons/ bros on using all solid zirconium to support the length/span of 4 unit bridge covering teeth 11to14. prevosiue porc bridge broken?

Very strong: An all zirconium bridge contains no metal and is very strong. Another bridge option is a porcelain over metal bridge, which you may already have that has broken. Other options for replacing missing teeth would be implant(s) to replace the missing teeth or a partial denture. However, we are big proponents for all-zirconium bridges that are more biocompatible with the tissue than metal based bridges

Zirconia / implant: Zirconia has proven to be an excellent choice for bridge substructures, but its bond to tooth structure has been minimal. Hence, zirconia screw-retained implant bridge, a prosthetic choice in your situation.

Solid Zirconia: I agree with the previous answer that the zirconia bridge has a limited ability bonding to natural teeth. I would recommend getting rid of the bridge altogether and consider placing implants at sites 12 and 13 and have individual emax crowns. In making individual crowns, you will have and easier time cleaning in between your teeth. No one "loves" using floss threaders, right?

Stronger: Unless the previous bridge was base metal, the zirconium is far stronger. It will not be as esthetic looking, but they are working on this aspect. As long as there is an excellent fit to the support teeth (abutment teeth) then it is a very strong restoration. Good Luck.