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What are crowns?
A crown is a restoration that covers, or "caps,"
a tooth to restore it to its normal shape and size,strengthening
and improving the appearance of a tooth. Crowns are necessary
when a tooth is generally broken down and fillings won't solve
the problem. If a tooth is cracked, a crown holds the tooth
together to seal the cracks so the damage doesn't get worse.
Crown are also used to support a large filling when there
isn't enough of the tooth remaining, attach a bridge, protect
weak teeth from fracturing, restore fractured teeth, or cover
badly shaped or discolored teeth.
How is a crown placed?
To prepare the tooth for a crown, it is reduced so the crown
can fit over it. An impression of teeth and gums is made and
sent off to the lab for the crown fabrication. A temporary
crown is fitted over the tooth until the permanent crown is
made. On the next visit, the dentist removes the temporary
crown and cements the permanent crown onto the tooth.
Will it look natural?
Yes. The dentist's main goal is to create crowns that look
like natural teeth. That is why dentists take an impression.
To achieve a certain look, a number of factors are considered,
such as the color, bite, shape, and length of your natural
teeth. Any one of these factors alone can affect your appearance.
If you have a certain cosmetic look in mind for your crown,
discuss it with your dentist at your initial visit. When the
procedure is complete, your teeth will not only be stronger,
but they may be more attractive.
Why crowns and not veneers?
Crowns require more tooth structure removal, hence, they cover
more of the tooth than veneers. Crowns are stationary and
are customarily indicated for teeth that have sustained significant
loss of structure, or to replace missing teeth. Crowns may
be placed on natural teeth or dental implants.
How should I take care of my crowns?
To prevent damaging or fracturing the crowns, avoid chewing
hard foods, ice or other hard objects. You also want to avoid
teeth grinding. Besides visiting your dentist and brushing
twice a day, cleaning between your teeth is vital with crowns.
Floss or interdental cleaners (specially shaped brushes and
sticks) are important tools to remove plaque from the crown
area where the gum meets the tooth. Plaque in that area can
cause dental decay and gum disease.
Sources:
"Why do I need a crown?" American Dental
Association, 1996; Richard T. Masek, DDS, La Mesa, California;
Dr. Paul Bussman, DMD, FAGD, Coleman, Alabama; Sedgwick Dental
Associates Barbara E. Karbassi, RDH, DDS, Michael H. Fisher,
CDT, DDS, Port Orchard, Washington; Aesthetic Dentistry Associates
William Langstaff, DDS, FAGD Villa Park, California, Jeffrey
L. Wissot, DDS, FAGD Woodland Hills, California; The Art of
Dentistry Sol Weiss, DMD, Toronto, Ontario, Canada; Terec,
a research and development company formed by dental laboratories
in the United Kingdom;
David A. Hall, DDS, Cedar Rapids, Iowa; Goldstein, Garber
and Salama, Atlanta, Georgia Ronald E. Goldstein, DDS, David
A. Garber, DMD, Cathy Goldstein Schwartz, DDS, Maurice Albert
Salama, DMD, Angela Gribble, DMD, Henry Salama, DMD, Pinhas
Adar, CDT
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