What are other options to a dental crown after one falls off?

Replace vs Implant: If the dental crown is old and there is the ability to replace it with a new crown that will have longevity then replace it. If the prognosis is poor becasue of decay or lack of tooth structure, you can have the tooth removed and replaced by an implant. This has the best long term prognosis. Sometimes a bridge is an option, but is not the best option.

Depends: On if the tooth is restorable. Only a dentist can tell you. If the tooth is ok you can have the crown recemenetd with a modern cement.

See a dentist: Crowns may come off for various reasons. A dentist can take a look, take a radiograph, and properly diagnose the situation and give you options.

Depends: It's important to know why the crown fell off. Sometimes cement breaks down and you can re-cement. But sometimes there is decay and you cannot re-cement the crown and a new crown is needed after the decay is removed.