Yes, dental crowns can be replaced if they become damaged, worn out, or if they no longer fit properly. Crowns may experience issues such as chipping, cracking, or loosening over time. If you notice problems with your crown, such as discomfort, visible damage, or if it feels loose, contact your dentist. They will evaluate the condition of the crown and determine if a replacement is necessary, and can provide options for a new crown if needed.