Generally, a dental crown/bridge can last anytime between 5 to 15 years. Their life span depends on:
• Expertise of the dentist.
• The quality of the material of the crown.
• The quality of laboratory used for its fabrication.
• The amount of wear and tear the crown takes.
• How well you maintain your oral hygiene.
• Your personal habits like grinding or clenching your teeth, chewing ice, biting fingernails, and using the crowns to open packaging of chips, cans, holding pins etc.