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A
large number of people had amalgam fillings (silver) or gold filling
restorations in the past. All amalgam fillings contained mercury. Metal
fillings were effective, but very conspicuous and tended to blacken in color
over time.
Tooth-colored
fillings or composite resin dental fillings were created as an alternative
to traditional metal dental fillings. Composite tooth colored fillings are
made of a resin filled with microscopic porcelain particles. The strength of
current composites is similar to the strength of silver mercury fillings.
The advantage of a composite filling is that it is bonded to the tooth.
Research has shown that a well-sealed composite filling can restore the
strength of a decayed tooth almost to the level of an unfilled tooth.
Direct Bonding
The
two images on the right are an example of "direct" dental bonding done at
our office. These restorations are known as veneers. In order to accomplish
this form of "instant orthodontics", tooth colored composite filling
material was "bonded" to the front surfaces of the natural teeth and then
carved using a hand piece (high speed drill), and slow speed polishing
instruments to sculpt more esthetic (pleasant appearing) teeth in a better
position. Direct veneers are very thin coats of filling material placed on
teeth, which are sometimes altered (prepared) beforehand, and sometimes not.
The above teeth were not prepared, and the veneers were placed without
giving shots. Direct bonding is an artistic endeavor on the part of the
dentist. No laboratory is involved in the production of the final product.
The
two images on the left show the replacement of old composite fillings with
new ones. Even though this type of work is bonded, they still are billed as
simple fillings and are paid for by most dental insurance companies, while
the bonded veneers shown above are considered cosmetic and are generally not
covered by insurance.
Veneers
Dental
veneers are thin, individual hand crafted wafers of porcelain or plastic,
which can be bonded to your teeth to change their shape, color or alignment.
Often an alternative to crowns, dental veneers look completely natural and
are made of a very durable ceramic material that actually strengthens
your
tooth! It is very common for people to have imperfect teeth, either oddly
shaped teeth, chipped teeth, crooked teeth, teeth with small holes in them,
or an inappropriate sized tooth or teeth that have an odd appearance. Dental
veneer solves such irregularities and creates a durable and pleasing smile.
Fixed Bridge
A
bridge may be recommended if you're missing
one or more teeth. Gaps left by missing
teeth eventually cause the remaining teeth
to rotate or shift into the empty spaces,
resulting in a bad bite. The imbalance
caused by missing teeth can also lead to gum
disease and temporomandibular joint (TMJ)
disorders.
Bridges
are commonly
used to replace one or
more missing teeth.
They span the space where the teeth are
missing. Bridges are cemented to the natural
teeth or implants surrounding the empty
space. These teeth, called abutments, serve
as anchors for the bridge. A replacement
tooth, called a pontic, is attached to the
crowns that cover the abutments. As with
crowns, you have a choice of materials for bridges. Your dentist can help you decide
which to use, based on the location of the
missing tooth (or teeth), its function,
aesthetic considerations and cost. Porcelain
or ceramic bridges can be matched to the
color of your natural teeth.
Implants
A
dental implant is really a very simple metal
screw which is designed to thread into the
bone of the jaw and to allow for the
attachment of a (prosthetic) tooth at the
top. Implants are made of Medical grade
Titanium or Titanium Alloy. The bone will
fuse to the implant over a short period of
time in a process referred to as 'Osseo
integration' and once this process is
successfully completed (3 to 4 months), the
implant is permanently in place. Dental
implants are artificial tooth root
replacements that are used as a part of
prosthetic (artificial replacement)
dentistry in order to counter tooth loss.
The loss of teeth can result from aging,
trauma to the mouth or poor oral hygiene.
This
patient, a 50 year old female, lost an upper
bicuspid tooth. In the x-ray on the right,
you can see exactly where the tooth was
(this x-ray was taken only a few weeks after
the tooth was extracted so the bone has not
healed in yet),
noting
the shape of the root which goes right up to
the floor of the maxillary sinus. The x-ray
on the left shows the titanium implant in
place and a new porcelain-fused-to-gold
crown on the implant effectively replacing
the missing tooth. This x-ray was taken
after the "tooth" had been in function for
one year.
Tooth loss can have a negative effect on
eating by causing bite-related
irregularities. From an esthetic point of
view, the loss of teeth can have a
psychological effect on people who might
feel too self-conscious to smile or talk.
Regardless of the nature of problems related
to tooth loss, dental implants may offer a
simple remedy with proven results. |
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