A crown is needed when a filling cannot restore a tooth to its original form.
A crown protects and strengthens the tooth structure.
Some common reasons for placing crowns over natural teeth are badly decayed teeth, a weaker tooth following a root canal treatment, a broken or cracked tooth, and sometimes a tooth with a very large filling.
There are several types of crowns that can be used and some of the more common crowns are PRM (porcelain fused to metal), Zirconia and IPS e.max. Crowns are highly durable, resemble a tooth in their colour and anatomy and will last many years.
A crown is usually done in 2 appointments. During the first appointment the dentist recontours the tooth, takes an impression to be sent to the lab and places a temporary crown. In the second appointment the crown is cemented permanently into place.