A crown is a protective outer shell or cover that fits over the remaining part of a prepared tooth, making it strong and giving it the shape of a natural tooth. A crown (sometimes known as a cap) is used where teeth are badly decayed or broken, or where a tooth is very heavily filled and may lack strength. The tooth is prepared, any decay removed and restored and an impression is taken. A dental technician then precisely fabricates a crown to fit snugly over the prepared tooth. The colour of the porcelain is made to match that of the adjacent teeth. The crown is then permanently cemented. Two visits are usually required to make a crown with three weeks between the visits. In cases of particularly broken down or root treated teeth or where only a root remains a cast metal post may be required to improve the strength of the tooth and to support the crown. This can only be done in previously root treated teeth so a root filling may have to be done first if the tooth is still vital.
Generally porcelain is the material of choice and the new EMAX or Zirconium porcelains give tremendous aesthetic results. On back teeth porcelain bonded to metal is usually preferred to resist the strong biting forces in this area. In some unusual cases all gold crowns may be used (normally at the very back of the mouth).
Closing Spaces / Replacing Missing Teeth
It is important to replace missing teeth in order to balance your bite, restore function and of course to improve your smile. If several teeth are missing, the remaining teeth come under more pressure, which can lead to chipped teeth, broken fillings and even jaw problems. There are several ways to close a gap. A partial denture is the simplest way of replacing missing teeth. However, some people find dentures uncomfortable and prefer to look at alternatives. These alternatives include dental bridgework and implants.
Ratoath Dental & Implant Centre
The Well Road,
Tel: 01 8256983