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| PROSTHETIC DENTISTRY -
The restoration or replacement of teeth. |
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This section will cover the three main areas that
are included when we think of prosthetics in dentistry.
- CROWNS
- BRIDGES
- DENTURES
- PARTIAL DENTURES
- IMPLANTS
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| CROWNS - Full
coverage restorations of the teeth. |
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| CROWNS - Typically porcelain crowns are placed when a significant amount of
tooth structure is lost and when placing a filling would jeopardize the integrity
of the tooth or compromise the aethetics or strength. Generally, they cover the top
of the tooth and go down the side of the tooth, holding it together to prevent further
damage to the teeth. Traditional crowns have gold inside of them with porcelain bonded
to the outside for aethetics. These are sturdy and durable and hold up well to the
200 pounds of pressure put on them during chewing function. The newer porcelain crowns
are called "second-generation" materials because they are stronger and
more durable than the original porcelain type materials that were used thirty years
ago. These new materials have more flex, better wear, more translucency to match
the natural color of your teeth and they bond better to either the tooth or the metal
underneath the porcelain on the porcelain/metal crowns. |
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| BRIDGES -
Replacement of a missing tooth or teeth. |
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| BRIDGES are placed when there are one or more
teeth missing and the objective is to stabilize the bite, prevent
the adjacent teeth from tilting, and the opposing teeth from dropping
down into the space that has been lost. When there is no adjacent
tooth on one side, we may do a cantilever bridge, which is supported
by only one tooth. (It can have two teeth on one side and then extend
out on the other by itself.) There are a few different types of
bridges including the Maryland Bridge, which can be placed conservatively
in the areas that have low torque and two teeth that have never
been touched. |
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| DENTURES -
Replacement of a missing teeth or a full arch. |
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| DENTURES generally refers to the replacement of an entire arch of teeth with
a removable appliance with either plastic or porcelain teeth on it. If there are
a few teeth left, then it is referred to as a PARTIAL DENTURE. This will either
have acrylic base holding it in place, or it will have metal clasps to secure it
to the adjacent teeth. Generally when a denture is placed for the first time, it
takes a while to get used to it, since it is a foreign body in your mouth. Dentures
should be brushed just like you would your natural teeth because they can build up
tarter on them as well. FOR MORE INFORMATION ON CARE OF DENTURES and HOW THEY
ARE MADE, CLICK HERE. |
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| IMPLANTS -
Replacement of one or more missing teeth. |
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An IMPLANT is typically a titanium screw that is placed into the jaw bone
in the area that a tooth is lost. It is left in the bone for a period of approximately
4-6 months to let it "fuse" with the adjacent bone. At this point, a metal
top is placed on the screw post to create a hole in the gum for the crown to emerge
from. After that has been in the tissue for a short while, then a crown can be placed
over that post. It is either cemented or screwed in, depending upon the type of implant
system.
Advantages of implants are that they don't involve the adjacent teeth and therefore
are more conservative in that respect. In addition, should something happen to the
implant (porcelain chip, adjacent teeth turn darker over time) the crown can usually
be easily removed and sent back to the lab for a touch-up to correct anything.
Doctor LaFrom is an active member in the Silicon Valley Implant
Study Club and has been successfully restoring for about 20 years.
Typically, at our office, we work closely with and in conjunction
with either a local oral surgeon or periodontist who would place
the actual implant fixture (below the gumline) into the jaw bone.
Then, after the area has healed, we come in and place the restorative
portion above the gumline - the crown. FOR MORE INFO AND PICTURES
OF IMPLANTS, check out our ORAL
SURGERY SECTION. |
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