Can I have a new dental bridge made and reuse my current dental crowns/bridge in the future?

When your dentist removes your existing bridge it will be destroyed in the process.  These bridges are sectioned into several pieces upon removal, therefore reusing it will not be an option.  

dental bridge can not be re used. This is because alot of times dental bridge might need to be cut for easy removal and to prevent damage to teeth,  as it is permanently cemented.  Also one of  the reasons dental bridges are replaced, is decay of tooth structure which is holding the bridge.  In that case, the bridge is  removed.  If these teeth  could be saved, tooth decay is cleaned out and restored. Some times root canal therapy is needed.  Since the tooth shape is now changed,  a new bridge will be designed.

In most cases, a bridge is cut in pieces to remove it from your teeth.  Even if the dentist could remove it in one piece, he will most likely reshape the teeth (even so slightly) before the new bridge is fabricated.  Therefore the old yellow bridge would not fit over your teeth anymore ten years later.Even if you could use it later, there is no indication that your natural teeth would get darker to the same color of your old bridge.

Existing dental restorations are normally destroyed during the removal process.  Also, the fit is created to fit the prepared teeth within microns, and each time a tooth is prepared, the shape is irreversibly changed.  Even if the bridge could be removed without being destroyed, it would not fit in the future.