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Dental
implants are artificial tooth replacements that are used
to replace missing teeth. The procedure falls into the
category of cosmetic dentistry as well as prosthodontics.
Implants have proven to be functionally effective and
durable. In many cases, dental implants may be the only
logical choice for the replacement of missing teeth which
may have been lost as a result of trauma or periodontal
disease. |
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Reasons for Tooth Loss |
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Teeth
maybe lost due to reasons listed below: |
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Advantages of Implant Dentistry |
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Dental Implants are an excellent solution to replace
missing teeth. Placement of these implants can do wonders
for an individual’s confidence by providing a functional
and aesthetic solution. Implants may be used in
conjunction with other restorative procedures-a single
implant can serve to support a crown replacing a single
missing tooth or in the case of multiple missing teeth,
implants can be used to support a dental bridge. They can
also be used with dentures to increase stability. |
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The Implant Procedure |
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Dental implants offer an excellent aesthetic and permanent
solution for missing teeth and are virtually
indistinguishable from the natural teeth. This appearance
is aided in part by the structural and functional
connection between the dental implant and the living bone.
Implants are typically placed in a single sitting but they
require a period of Osseo- integration.
Osseo- integration is a process in which there is direct
anchorage of the dental implant root and the bone of the
jaw. Osseo integrated implants are the most commonly used
implant systems and have a very high success rate. An
Osseo- integrated implant takes anywhere from three to six
months to anchor and heal. Your dentist can complete the
implant procedure with the placement of a crown. In case
the implant is being used to support an artifical
prosthesis (e.g. a denture) this can also be placed when
the implant has
anchored with the jawbone. |
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The dental implant procedure comprises two steps:
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Preparing the Jaw for Implantation: |
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A
dental implant is commonly composed of a titanium material
screw and a crown. A small-diameter hole (pilot hole) is
drilled at edentulous (where there is no tooth) jaw sites
in order to guide the titanium screw that holds a dental
implant in place. To avoid damaging vital jaw and face
structures like the inferior alveolar nerve in the
mandible (lower jaw), a dentist must use great skill and
expertise when boring the pilot hole and sizing the jaw
bone. |
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Placement of the Implant: |
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After
the initial pilot hole has been drilled into the
appropriate jaw site, it is slowly widened to allow for
placement of the implant screw. Following this placement,
a protective cover screw is placed on top to allow the
implant site to heal and the dental implant to anchor (the
process of osseo-integration). After several months, the
protective cover is removed and a temporary crown is
placed on top of the dental implant. The temporary crown
serves as a template around which the gum grows and shapes
itself in a natural way. The process is completed when the
temporary crown is replaced with a permanent crown. |
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Success Rates of Dental Implants |
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Dental implants are among the most successful procedures
in dentistry. Studies have shown a five-year success rate
of 95% for lower jaw implants and 90% for upper jaw
implants. The success rate for upper jaw implants is
slightly lower because the upper jaw (especially the
posterior section) is less dense than the lower jaw,
making successful implantation and Osseo-integration
potentially more difficult to achieve. Lower posterior
implantation has the highest success rate for all dental
implants.
Dental implants may fail for a number of reasons. The
cause is often related to a failure in the
Osseo-integration process. For example, if the implant is
placed in a poor position, Osseo-integration may not take
place. Dental implants may break or become infected (like
natural teeth) and crowns may become loose. |
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