|
Dentistry is no longer just a case of filling and extracting teeth. Nowadays, many people turn to dentistry as a way of improving their appearance, much as they would use cosmetic surgery or even a new hairstyle.
Cosmetic treatments include tooth coloured fillings, veneers, inlays, crowns and tooth whitening.
Crowns
Crowns are an ideal way to rebuild teeth which have been broken or have been weakened by decay or a very large filling. The crown fits right over the remaining part of the tooth, making it strong and giving it the shape and contour of a natural tooth.
Your dentist may suggest that you require a crown for a number of reasons:
- Your tooth may have been weakened by having a very large filling
- You may have a discoloured filling
- You may have had a root filling which will need a crown to protect it
- You may have had an accident and damaged the tooth
- It may help to hold a bridge or denture firmly in place
Your dentist will prepare the tooth to the ideal shape for the crown, This will mean removing most of the outer surface and leaving a strong inner core. The amount of the tooth removed will be the same as the thickness of the crown to be fitted. Once the tooth is shaped, the dentist will take an impression of the prepared tooth, one of the opposite jaw and possibly another to mark the way you bite together.
At this point a temporary crown will be fitted while the impressions and information about the shade of your teeth are sent to a dental technician who is skilled in making crowns. They will make models of your mouth and make the crown on these to be sure that it fits perfectly.
You will need to have at least two visits: the first for the impression, shade taking and fitting the temporary crown, and the second to fit the permanent crown.
Once the fit and appearance of the crown has been checked, it will be cemented in place with special dental cement. The cement also forms a seal to help hold the crown firmly in place.
The life of a crown will depend on how well it is looked after. The crown itself cannot decay but decay can start where the edge of the crown joins the tooth. It is very important to keep this area clean or decay could endanger the crown. Properly cared for crowns can last for many, many years. |