Bridges can be removed, but generally dentists hesitate to remove a restoration if it is not necessary. Depending on how old the bridge is and if there is any decay your insurance may not cover it. (it usually has to be at least 5 yrs old and be compromised in some way) While gold isn't as pretty, it is a lot stronger and more acceptable to your gums, so look on the bright side for now.

Kristin.