Do you ever wish that your teeth
were whiter???? Very often, the distinction
between a good smile and a great smile is the whiteness
of the teeth. This leads to some people worry
needlessly about the overall color of their teeth. For
e.g. A person with light complexion may believe that
his/her teeth are too dark when actually they are normal
in color. A Sun tan, darker makeup or a darker lipstick
will usually make teeth appear much whiter by increasing
the contrast between the teeth and the surrounding facial
features. But, many people have definite aesthetic problems
which require treatment. The treatment for discolored
teeth is based on treating the causes
for discoloration.
Causes for discoloration of Teeth:
Extrinsic {on the surface} causes: These
include discoloration caused by - Tea, coffee, wine,
cola or other drinks or foods, tobacco smoking, bacteria
producing colored pigments, salivary protein layer
covering the tooth surface, tooth decay or a broken
down filling.
Intrinsic{changes in the tooth material} causes:
These include discoloration caused by- Excessive exposure
to fluoride during early childhood , Use of tetracycline
antibiotics during the second half of pregnancy causing
stained teeth in the child, Use of tetracycline antibiotics
at the age of or before 8 years , Trauma affecting
a tooth at childhood. The loss of blood supply and
nerve supply can by itself cause discoloration of
the tooth.
Age-related discoloration: This is
a combination of extrinsic and intrinsic factors.
Dentin naturally yellows over time. The enamel that
covers the teeth gets thinner with age, which allows
the dentin to show through. Foods and smoking also
can stain teeth as people get older. Finally, chipping
or other injuries also can discolor a tooth, especially
when the pulp {nerve} has been damaged.
Treatment for Discolored Teeth:
- Many extrinsic stains can be removed by regular
professional cleanings and home care. Good home care
includes brushing, flossing and rinsing after meals.
- If a broken down filling or a cavity is the cause,
filling the defect will improve the discoloration.
- Discoloration resistant to cleaning or intrinsic
stains can be corrected or greatly improved through
conservative procedures such as Bleaching, Micro abrasion
or Veneering.
- Bleaching will not lighten some stains. In this
case, your dentist may recommend covering the discolored
areas. This also may be useful when the tooth is chipped
or badly damaged .A tooth can be covered with a color-matched
composite bonding material or veneers {thin ceramic
shells that cover the outer surfaces of the teeth}
- If your tooth has darkened after a root canal,
bleaching the enamel won't help. Your dentist can
apply a bleaching material to the inside of the tooth,
or you may consider a crown or veneer.
- Stains caused by tetracycline medications usually
require more than one form of treatment depending
upon the type of stains.
- Age related stains can be treated using the combination
of above mentioned treatments.
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