Dental Crowns made of Resin and Porcelain
The new reinforced resin or bonded all-porcelain type of dental crowns has the most natural
appearance as the color is specifically chosen to match the color of your teeth. They can be made from pure ceramic or a
new reinforced composite resin, and as they are almost indistinguishable from natural teeth they are used primarily
for front teeth. Unsurprisingly, more and more patients are also requesting them for other areas of the mouth. They are
bonded using material which is metal-free which is of great benefit to patients with metal sensitivities.
There are basically two types of porcelain. The felspathic type is the original
method that has been around for 20 years. Porcelain is baked onto tin foil and then heated in an oven after which a
ceramist is able to create tints and opaques inside the porcelain and produce an extremely natural looking dental crowns.
The other method is
pressed ceramic porcelain which is created from single ingot. This is milled in one piece to create the required
shape. Stains and opaques are applied only to the surface of the porcelain.
Advantages of resin and porcelain crowns :
Disadvantages of resin and porcelain crowns :
It is necessary to remove more tooth structure because of
the thickness of the porcelain.
The thickness of the porcelain also means it is more
difficult to get an ideal fit where your gum meets the
Gingival inflammation appears to be more common with
porcelain crowns than gold crowns.
Porcelain crowns require a higher skill level from your
Dental Crowns Made of Gold
Gold crowns are often
the preferred choice when the patient is not overly
concerned about their appearance. Gold is extremely pliable
making gold crowns a better fit than any other type. The
strength and durability of the gold offers a more solid
crown that will not chip or crack, which is possible with
other types of crown. Gold crowns are normally used in
molars, where the forces from chewing and grinding are most
Advantages of gold crowns :
It is easier to prepare
a tooth for a gold crown as there is minimal tooth
structure removal and more of the original tooth remains
Gold is less likely to cause wear on opposing teeth.
Gold is more pliable and offers a better fit.
Of all the crowns gold offers the healthiest environment for the gum tissue.
Disadvantages of gold crowns :
Dental Crowns made of Porcelain and Metal
Porcelain fused to metal crowns offer a natural appearance with a better fit than a
standard porcelain crown. On the down side they have a metal substructure making it difficult to replicate the
translucency of natural teeth. It is possible that a darker line will appear at the edge of the crown, near the gum, as
it recedes with age.
Advantages of porcelain and metal crowns :
Disadvantages of porcelain and metal crowns :
They have a metal substructure and require an opaque below the porcelain.
In time, a darker line may be visible at the edge of the crown.
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