What are the adverse effects of crown?

The tooth surface enamel is worn, not only will cause the hardness of the teeth and chewing strength to decline, but also make the teeth sensitive to external stimuli, so if only to whiten the teeth is not recommended to do crown. If the crown is due to tooth damage and needs to be repaired, the crown has no adverse effect on the tooth. On the contrary, the crown can protect the tooth and restore the normal shape and chewing function of the tooth.