Fillings are materials used to build your tooth back up after removing a cavity. A dental crown is made of porcelain, zirconia, or metal wrapped around weakened teeth to prevent fracture. But sometimes, fillings and crowns will fall out. In most cases, decay caused by cavities will form underneath the filling or crown and cause them to dislodge from your tooth.
The exposed tooth surface is often very sensitive to temperature, pressure, or air, so you should schedule an appointment as soon as possible. If you lose a crown, try to keep it in a safe place; it may be able to be reused. However, the crown cannot be reused if decay occurs on the tooth. If you wait a long time before you replace your crown, the adjacent teeth will start shifting and taking up the space that your crown used to be in, preventing you from being able to fit the most optimum-shaped crown into the area.
If you have lost a filling or dental crown, you need to be seen immediately to have it fixed.