Dental crowns have been around since ancient times, but the composition
of them have come a long way over the ages. Today, there are three most
common types of crowns performed: all-porcelain, porcelain-fused-to-metal, and gold.
Before the modern technology in the industry developed, crowns were most
often fashioned out of gold. Gold is a very malleable metal, and it holds
up well and lasts a long time. Even today, some patients prefer to have
gold crowns done rather than the more aesthetic porcelain because of how
long gold crowns can last. Gold does not break, true. However, over a
long period of time, gold can wear down and may require replacement. Unlike
the one-visit CEREC all-porcelain crowns, gold crowns require two visits
to complete. The first visit, the tooth is prepared and an impression
is taken and sent to a dental laboratory for fabrication of the gold crown.
Approximately two weeks later, the patient returns to the dental office
for the cementation of the gold crown. Another drawback of gold crowns
is that they appear in the mouth as a gold metal, not like the white enamel
of your natural teeth. And finally, because the price of gold has increased,
sometimes these type of crowns can be more expensive.
Porcelain-fused-to-metal crowns were the industry standard before all-ceramic
crowns were introduced to the market largely 20 years ago. A PFM crown
has a metal base and the visible portion of the crown is made of porcelain
fabricated to match the patient’s existing tooth shade. Like gold
crowns, these also take two visits and require a dental laboratory to
make them. However, they look natural in the mouth and are ever so slightly
stronger than the all-porcelain crowns.
CAD-CAM dentistry has allowed dental offices to create beautiful, aesthetic
and functional all-porcelain crowns in one visit, right in the office.
An all-porcelain crown has no metal and the impression that is taken is
digital, not with the usual impression material that requires you to bite
down until it hardens. There is no metal at all, so the result is beautiful
and natural and looks exactly like your own tooth. All ceramic crowns
have been known to break; however, with the updated technology, better
cements and primers, and stronger all-porcelain materials, the percent
of breakage is decreasing.
At The Szikman Dental Group, P.C. in Atlanta, we perform all three types
of crowns for our patients. The overwhelming majority of our patients
prefer the one-visit CEREC all-porcelain crowns due to the natural appearance,
convenience of a single visit, and the fact that no metal is present.
Call us at the Szikman Dental Group today to get more information about
our CEREC one-visit crowns!