The Crowning of Teeth

The crowning of a tooth is necessary when the natural crown has decayed and an artifical crown is needed for stabilisation. The contact between the teeth of one jaw and the teeth of the other jaw can be improved with a crown, if need be. In addition, artifical crowns are used to improve the aesthetic function of discoloured, tilted, rotated or elongated teeth. Another reason for crowning teeth is when one needs a partial denture, for example a fixed bridge or a removable bridge by double crowns.

Every year 10 million crowns are fabricated and cemented in Germany !


Example of the crowning of front teeth

When a tooth is crowned it needs sufficient space for the crown material. Therefore the tooth has to be prepared, the enamel is completely removed as well as parts of the dentine. The result of the tooth preparation is a conical stump of the tooth, on which the artifical crown can be placed and cemented. The space which is needed for the artifical crown depends on the type of crown and position of the tooth. The minimum space needed is about 1 mm for metal crowns and about 2.5 mm for the occlusal surface of a metal-ceramic restauration. Elongated or tilted teeth have to be cut much deeper. Particulary in those cases, there is a greater risk of damage to the vitality of the dental pulp.


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