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A denture is a removable replacement
for missing teeth and adjacent tissues. It is made of
acrylic resin, sometimes in combination with various
metals. Complete dentures replace all the teeth, while a
Partial Denture fills in the spaces created by
missing teeth and prevents other teeth from changing
position. Complete dentures are either "conventional"
or "immediate." A conventional denture is placed
in the mouth about a month after all the teeth are
removed to allow for proper healing, whereas an
immediate denture is placed as soon as the teeth are
removed. The drawback behind an immediate denture is
that it may require more adjustments after the healing
has taken place. A third type of denture is an
Overdenture. An overdenture is a type of
denture that is secured by precision dental attachments.
The attachments are placed in remaining tooth roots or
dental implants, which have been placed specifically for
the overdenture attachment.
Who is a candidate
for a Full Denture?
Candidates for complete dentures have
lost most or all of their teeth. A partial denture is
suitable for those who have some natural teeth
remaining. A denture improves chewing ability and
speech, and provides support for facial muscles. It will
greatly enhance the facial appearance and smile.
What is the process
of making a Full Denture?
A dentist can make a full
conventional denture when all teeth have been lost or
all extraction sites have healed (up to eight weeks or
longer.) The denture process takes about one month and
five appointments: the initial diagnosis is made; an
impression and a wax bite are made to determine vertical
dimensions and proper jaw position; a "try-in" is placed
to assure proper color, shape and fit; and the patient's
final denture is placed, following any minor
adjustments. New denture wearers need time to get
accustomed to their new "teeth" because even the best
fitting dentures will feel awkward at first. While most
patients can begin to speak normally within a few hours,
many patients report discomfort with eating for several
days to a few weeks. To get accustomed to chewing with a
new denture, start with soft, easy-to-chew foods. In
addition, denture wearers often notice a slight change
in facial appearance, increased salivary flow, or minor
speech difficulty.
Denture Care and
Maintenance
A denture base is made out of
processed acrylic. The base is usually kept rather thin,
which makes the denture very fragile. Therefore, it is
important to handle it with care. Remove and brush the
denture daily, preferably with a brush designed
specifically for cleaning dentures, using either a
denture cleanser or toothpastes. Never use harsh,
abrasive cleansers, including abrasives toothpastes,
because they may scratch the surface of the denture.
Don't sterilize your denture with boiling water because
it will cause it to become warped. If you wear a partial
denture be sure to remove it before brushing your
natural teeth. When not in use, soak it in a cleanser
solution or in water. Get in the habit of keeping the
denture in the same safe and handy place to reduce the
likelihood of misplacement.
It is important to continue having
regular dental checkups so that a dentist can examine
oral tissues for signs of disease or cancer. As of
aging, your mouth will continue to change as the bone
under your denture shrinks or recedes. To maintain a
proper fit over time, it may be necessary to adjust your
denture or possibly remake your denture. Never attempt
to adjust a denture yourself and do not use denture
adhesives for a prolonged period because it can
contribute to bone loss. When in doubt, consult your
dentist.
Can a denture be
worn at night?
This is probably one of the most
asked questions from denture wearing patients.
Although you may be advised to wear your denture almost
constantly during the first two weeks break-in period
(even while you sleep), under normal circumstances it is
considered best to remove it at night. Research has
shown that removing the denture for at least eight hours
during either the day or night allows the gum tissue to
rest and allows normal stimulation and cleansing by the
tongue and saliva. This promotes better long-term health
of the gums.
What are the
alternatives to dentures?
Dentures are no longer the only way
to restore a mouth that has little or no non-restorable
teeth. Strategically placed support, or implants, can
now be used to support permanently cemented bridges,
eliminating the need for a denture. (We will address
this in more detail in the
Dental Implant
section). The cost is of course much greater, but the
implants and bridges more closely resemble the "feel" of
real teeth. Dental implants are becoming the alternative
of choice to dentures, but not everyone is a candidate
for implants. Your dentist can best determine if you are
a candidate for dental implants.
Overdentures
As already mentioned above,
overdentures are designed to attach to an attachment
mechanism placed into remaining tooth roots or dental
implants. A minimum of two attachments are
necessary for overdentures to work and be properly
balanced.
Anytime attachments are placed into
remaining tooth roots, these roots will require a root
canal procedure prior to cementing the attachments in
place. The root canal procedure will remove the
nerve and enlarge the canal so that it can accommodate
the post of the attachment.
If there are no teeth left, dental
implants can be used to achieve the same kind of
retention. In fact, dental implants are usually
preferred, because they will rarely if ever fracture
under load. Natural teeth that have undergone a
root canal procedure, on the other hand, are more prone
to fracture under the load of an overdenture.
The examples below illustrate the
overdenture concept somewhat. |