 1) Discomfort or sensitivity. Your newly crowned tooth may be sensitive directly after the procedure as the anesthesia begins to subside. If the tooth that has been crowned still has a nerve in it, you may fill some heat and cold sensitivity. Your dentist may advise that you brush your teeth with toothpaste considered for sensitive teeth. Pain or sensitivity that happens when you bite down generally means that the crown is too high on the tooth.
2) Chipped crown. Porcelain-made crowns can sometimes chip. If the chip is small, a compound resin can be used to fix the chip with the crown remaining in your mouth. In case the chipping is wide, the crown may need to be replaced. 3) Loose crown. Occasionally the cement washes out from under the crown. Not only does this permit the crown to become slack, it allows bacteria to seep out in and cause rot to the remaining tooth. If your crown feels slack, contact your dentist's office. 4) Crown falls off. On occasion crowns fall down from the tooth. Generally this happen because of an improper fit or a lack of cement. If this takes place, clean the crown and the front side of your tooth. You can put back the crown temporarily using dental adhesive or impermanent tooth cement that is sold in stores for this purpose. Call your dentist's office, so he will give you specific instructions on how to care for your tooth and crown for the day or so until you can be seen for an estimation. Your dentist may be able to re-cement your crown in place; if not, a new crown will need to be made. 5) Allergic reaction. Since the metals used to make crowns are regularly a blend of metals, an allergic reaction to the metals or porcelain used in crowns can happen, but this is exceedingly rare. 6) Dark line on crowned tooth next to the gum line. A dark line near to the gum line of your crowned tooth is normal, especially if you have a porcelain-fused-to-metal crown. Ordinary this dark line is just the metal of the crown shining through.
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