While the lifespan of the average dental crown falls somewhere between ten and fifteen years, each crown is unique and may need to be replaced much earlier. After thoroughly examining your mouth, your dentist will be able to tell if it’s time for you to receive a new dental crown, but there are a few signs that the cap on your tooth might be getting old that you can look out for at home. Here are a few ways that your crown might be saying that it’s ready to retire.