How do Crowns Work?
A crown is used to entirely cover or “cap” a damaged tooth. Besides strengthening a damaged tooth, a crown can be used to improve its appearance, shape or alignment. A crown can also be placed on top of an implant to provide a tooth-like shape and structure for function. Porcelain or ceramic crowns can be matched to the color of your natural teeth. Other materials include gold and metal alloys, acrylic and ceramic. These alloys are generally stronger than porcelain and may be recommended for back teeth. Porcelain bonded to a metal shell is often used because it is both strong and attractive.The last technology can made by full zirconia crowns.
Advantages of Having Zirconium Crown
Zirconium is becoming one of the most chosen materials for dental crowns. Its many advantages include:
- Extraordinarily tough
- Can withstand wear and tear
- Translucent enough to be similar to natural teeth
- Less tooth removal
- No Metal fuse
- Modifiable size, shape and color
The aesthetic effects alone of a zirconia crown should be the biggest advantage it can give. It is important that you have dental crowns that will look natural especially if it will be placed at the front teeth and will be visible beside the natural teeth.
The capacity of zirconium to be modified according to the set of teeth it will be placed alongside with is very important. Zirconium crown will not only replace a tooth but it can shaped so that it will look better than the one it will be replacing with. This therefore is why you can sport that perfect natural looking smile anytime.
Zirconia manufacturers are now producing and designing dental crowns custom milled from solid block of the material and baked at ultra high temperatures to ensure that the finished crowns are almost indestructible.
The fact that this material is biocompatible means that it is safe to stay within your mouth for a long time. There is no need to worry about any adverse reactions from your body because it is not rejected by the human body.
Advantages of Zirconium Crowns over Gold Crowns and Porcelain Crowns
It is a fact that gold crowns have been used by many people for so many years and it is well tolerated by the body. But it is still better to be able to show that natural effect when you smile. Add the fact that gold is metal and some people just do not like having metals in their internal parts.
Zirconium crowns are definitely more robust than porcelain crowns. They last longer too, compared to porcelain that chip and break.
Porcelain crowns also need to be fused to a metal base and the metal is that black unsightly line above the gums of people with porcelain crowns.
Since Zirconium crowns are milled from a chunk of crystal, they are guaranteed to be at least 5 times stronger than porcelain and it metal fuse. Zirconium crowns also provide strength without that bulky appearance that porcelain is so known for.
Disadvantages of Using Zirconium Crowns:
One of the disadvantages of zirconium crowns is that they are so hard that is why most dentists still prefer the gold crowns.
Another disadvantage is that, although the crown itself will be almost indestructible; the decay underneath it caused by the abrasion of the hard material against the other teeth is not noticeable. You will only realize that there is decay once the crown falls off.
Your dentist may recommend a crown to:
- Replace a large filling when there isn’t enough tooth remaining
- Protect a weak tooth from fracturing
- Restore a fractured tooth
- Attach a bridge
- Cover a dental implant
- Cover a discolored or poorly shaped tooth
- Cover a tooth that has had root canal treatment