FDA Ceramic Dental Crowns Restoration Good Biocompatibility
A crown is a restoration that covers or caps a tooth, restoring it
to its normal size and shape while strengthening it and improving
its appearance. Crowns are necessary when the tooth is broken down
to the point where a filling won't be effective.
A crown can be used to:
- Hold a cracked tooth together to prevent further damage
- Cover and support a tooth with a large filling where only a little
of the original tooth is left
- Attach a bridge
- Protect a weak tooth from breaking
- Restore a broken tooth
- Cover a discolored or misshapen tooth
- Cover a dental implant
What is the procedure like?
Before we put in a crown, we first have to prepare your tooth. We
will remove part of the tooth so the crown can fit in securely and
comfortably. The area around your tooth will be numbed throughout
the procedure with a local anesthetic.
After the tooth is prepared, we will make an impression of your
teeth and gums using a paste or putty. This will be sent to a
laboratory to make your custom crown. This usually takes 2 to 3
weeks. You will be given a temporary crown until your permanent
crown is ready.
Finally, the temporary crown is removed and the new one is cemented
onto the tooth.
What are the different types of crowns available?
There are several different methods of crown restoration, each
using a different crown material.
- Metal crowns are made entirely of a metal alloy that may include
gold, platinum, palladium, or other elements. Compared with other
kinds of crowns, metal crowns preserve more of the tooth structure.
They withstand biting and chewing forces well and rarely chip or
break. The biggest drawback of metal crowns is the metallic color.
- Porcelain-fused-to-metal (PFM) crowns can be color-matched to your
teeth. Second only to all-ceramic crowns in appearance,
porcelain-fused-to-metal crowns look like normal teeth. However,
the metal underlying the crown’s porcelain can create a dark line.
PFM crowns tend to wear down opposing teeth more than metal crowns.
The crown's porcelain portion can also chip or break.
- All-resin crowns are the least expensive type of crown. The
drawback is that they are more prone to chips and fractures than
other crowns and tend to wear down over time.
- All-ceramic or all-porcelain crowns provide the best natural color
of all the crowns. They are not as strong as PFM or gold crowns,
and they may wear down opposing teeth more than metal or resin
crowns. Because they are the most cosmetically pleasing, they are
usually used for the front teeth.
What are the potential problems patients may experience after
getting a crown?
You may experience increased sensitivity immediately after the
procedure, particularly if the crowned tooth still has a nerve in
it. For sensitivity to heat and cold, you may want to try
toothpaste for sensitive teeth. Pain or sensitivity from biting
down usually means that the crown is too high on the tooth. If this
is the case, we will be able to fix the problem.
Porcelain crowns may chip. Resin can be used to repair the
remaining crown. If the chipping is extensive, the entire crown may
need to be replaced.
Crowns sometimes become loose if the cement washes out from
underneath. Bacteria can then leak in and cause decay. If your
crown feels loose, contact our office.
In some cases, a crown may fall off entirely. If this happens,
contact us immediately so we can walk you through the proper
maintenance of your teeth and crown until you are able to come in
for an appointment. We may be able to replace the crown; if not, a
new crown will be made.
Dental implants provide a foundation for replacement teeth that
look, feel, and function just like natural teeth. No more need to
deal with uncomfortable dentures or bridges—with permanent dental
implants, a person who has lost teeth regains the ability to eat
and smile with effortless confidence.
Dental implants are surgically implanted in the jaw to provide a
comfortable, secure fit and a natural look. Implants can support
replacements for one tooth, several teeth, or even all of the
teeth. Dental implants deliver outstanding results in both
appearance and function of the new teeth.
Why do I need a dental implant?
The healthiest thing to do when you lose a tooth is to have it
replaced. Otherwise, you risk problems with biting, chewing and
speaking, headaches, muscle pain and an unattractive appearance.
Dental implants provide a comfortable, secure, natural-looking
solution for tooth replacement to retain function and aesthetics
and preserve bone structure.
Dental implants serve as the base for many tooth-replacement
options, including bridges, dentures and individual artificial
teeth. Implants also help preserve facial structure, preventing the
bone deterioration that occurs when teeth are missing.
How do dental implants work?
The dental implants themselves are titanium cylinders that are
surgically implanted in the jawbone where the missing teeth were
rooted. Over time, the titanium bonds with the bone, creating a
strong foundation for artificial teeth.
Small posts are then attached to the implant. Protruding through
the gums, these posts provide stable anchors for artificial
How long does the dental implantation process take?
Dental implants are placed during several appointments over many
months. In the first one or two appointments, the titanium posts or
anchors are implanted in the jaw. These anchors need at least three
to six months to heal. During this time, you will be fitted with
dentures or individual false teeth.
Once the implants have healed, the natural-looking replacement
teeth, crowns, bridges or dentures are fitted and installed on the
Dental implant surgery may be performed in an office or hospital
with local or general anesthesia.
Am I a candidate for dental implants?
The number-one requirement for dental implants is sufficient,
strong bone in the area beneath the missing teeth. Without enough
bone, the implants will not be able to take hold in the jaw.
If you do not have the bone necessary for dental implants, your
dentist may recommend bone grafting—removing bone from elsewhere in
the mouth or from the hip, or using artificial bone, and placing it
in the jaw until it grows into the natural bone—as a first step in
the dental implant process.