Crowns are not recommended for incisors because the doctor determines that the tooth has little damage and has not had a root canal, not all incisors are not recommended for crowns. Not all incisors are not recommended to be crowned, but those with a lot of damage need to be protected with a crown. It is advisable to consult your dentist for details. Under normal circumstances, if the incisors have not done root canal treatment directly for filling, in the physician examination of the tooth resistance shape enough can not do crowns, because the incisors generally only play aesthetic and tearing, cutting food role, the chewing pressure borne by not as much as premolars and molar teeth. However, if the incisors have undergone root canal treatment, the doctor will generally recommend that crowns be made to protect the teeth, which can protect the teeth from splitting due to excessive biting force. If the incisors are chipped or have undergone root canal treatment, it is recommended that crowns be made to protect the incisors.