If your dentist notices that a tooth is decayed or seems weakened/cracked a crown may be necessary to make sure that there are no additional problems with the tooth. In cases like this a filling or bonding will not be sufficient.
Crowns can be made from porcelain, porcelain fused to metal, or a full gold crown. To maintain a natural look and feel a porcelain finished crown is best, as it can be matched to the shade of your other teeth. This will allow it to blend in and appear just like one of your natural teeth.
On the first visit the tooth will be reshaped by filing down the enamel so that the crown can be placed over it.
You will be given a local anesthetic before this part of the procedure so that you do not experience any discomfort.
A mould will be taken of that tooth and the surrounding teeth. This mould will be sent to a dental lab so that your new crown can be made to fit in the position created for it and looks the same relative to the surrounding teeth. Before leaving, your dentist will fit you with a temporary crown until your permanent crown is ready.
The crown takes about 2 weeks to be returned to your dentist.
At this time you will have another appointment to place and fit the permanent crown. You will again have a local anesthetic to numb the area and the tooth will be placed using a cement to ensure the tooth sets in place.
When you look in the mirror, you will see your old smile back. Crowns are durable and will usually last about 10-15 years.
You should care for it as you would any of your other teeth with regular brushing and flossing.
When decay occurs below the gumline, it may be necessary to remove a small amount of bone and gum tissue. Your dentist may ask for this procedure before he or she makes a new crown for your tooth.
Crown Lengthening procedures are done for both restorative dentistry and/or to improve the aesthetics of your gum line. General practitioners often refer (to a specialist) for crown lengthening procedures prior to restoration of broken or severely decayed teeth. This procedure adjusts the gum and bone level to expose more of the tooth so it can be restored.
Sometimes crown lengthening is done to improve a “gummy” smile because the teeth appear short. The teeth may actually be the proper length but excess gum tissue may be covering these teeth. During this procedure, excess gum and bone tissue is reshaped to expose more of the natural tooth