Dental crowns act as a shield to the teeth. It is used as a cover to the damaged tooth. The crown improves the beauty of the teeth. They can also be placed on top of an implant to provide that tooth like shape. Dental crowns are of various types:
All metal dental crowns
These crowns are made-up completely out of metal. The color may differ, either white or yellow depending on the type of metal alloy used. Metal crowns are very good alternative for the teeth that for teeth that are not often seen such as lower molars, upper 3rd molars or some upper 2nd molars. The may be caped with gold to give it attractive color. Nevertheless, pure metals aren’t used because of the lack of required properties, only metal alloys are used. These metal dental crowns are very excellent and so the teeth are unable to rupture. The teeth last longer and the converse teeth are never worn out. The only inconvenience of this type of teeth is that it is a metal.
All ceramic dental crowns
They are made of some types of dental ceramic such as the porcelain. They may be made by a technician or may be pounded from a block of porcelain compound. They are very attractive than their metal fused complement. Their look also seems to last long. They are made translucent, a shining property for pretty appearance.
The all ceramic crowns are compatible and not allergic as compared to the metal fused. However, these types of crowns are very fragile and can break easily.
The milled ceramic crowns may not look as ordinary as the other all ceramic crowns. They are only vital for the aesthetic appearance.
Porcelain-fused-to-metal crowns (PFMs)
These can be a mixture of all metals and all ceramic. Made-up porcelain is compound to an underlying metal in high heat kiln. They have strength that last for a long time since they compose a metal alloy and a porcelain alloy. Contrast to all ceramic crowns, PFMs can accurately fit the teeth. Conversely, they may wear out the contrary teeth. They are also subjected to tear and loose its appealing appearance.
Crowns can last for a long time. However, they sometimes untie and fall out if good oral hygiene is not practiced. Due to dental diseases that affect the teeth, the crown might detach from the teeth. They are subjected to cavity once if not cared.
Gums should be kept healthy through regular brushing of teeth with fluoride tooth paste at least twice a day. One should see the dentist frequently for basic check ups and advice. The costs of the dental crowns are dependent on the position of tooth and the type of material used, gold crown being the most expensive. The cost also depends whether the crown has been insured or not. The insured crowns cost much than their counterparts. Their life time is about 10 to 20 years depending on the way they are maintained.