The problem with crowns, compared to a dental implant, is that the artificial tooth structure is still dependant upon the integrity of your remaining natural tooth structure. They are therefore less secure than an implant, and may occasionally need maintenance. This might be because your natural tooth structure is experiencing tooth decay, it may be because the crown hasn’t been installed properly, or it may simply be due to simple wear or trauma to the crowned tooth.
If your crowned tooth feels sensitive, this does not necessarily mean that you have a problem. However, be on the lookout for pain when you bite down; this may mean that you need to have your crown re-fitted.
Should your crown come loose or fall out, you will need to have it repaired as quickly as you can manage. The vulnerable inside of your tooth is exposed, which leads quickly to serious decay. Clean both the crown and the tooth, covering the area with temporary tooth cement if your dentist cannot see you right away.