THE BENEFITS OF SEALANTS
The first step in maintaining a healthy mouth is preventing tooth
decay, and sealants can offer major protection against cavities.
Your teeth are covered with a sticky film of bacteria, called
plaque. When you don't clean your teeth after eating, plaque bacteria
use sugar and starch in food as a source of energy. The bacteria
convert the sugar or starch into harmful acids that attack tooth
enamel for as long as twenty minutes or more. Repeated attacks may
cause the enamel to break down, resulting in cavities.
How does a sealant help prevent decay?
A sealant is a plastic material that is usually applied to the
chewing surfaces of the back teeth premolars and molars. This
plastic resin bonds into the depressions and grooves (pits and fissures)
of the chewing surfaces of back teeth. The sealant acts as a barrier,
protecting enamel from plaque and acids.
Thorough brushing and flossing help remove food particles and
plaque from smooth surfaces of teeth. But toothbrush bristles cannot
reach all the way into the depressions and grooves to extract food
and plaque. Sealants protect these vulnerable areas by "sealing out"
plaque and food.
Is sealant application a complicated procedure?
Sealants are easy for your dentist to apply, and it takes only
a few minutes to seal each tooth. The teeth that will be sealed are
cleaned. Then the chewing surfaces are roughened with an acid solution
to help the sealant adhere to the tooth. The sealant is then 'painted'
onto the tooth enamel, where it bonds directly to the tooth and hardens.
Sometimes a special curing light is used to help the sealant harden.
As long as the sealant remains intact, the tooth surface will
be protected from decay. Sealants hold up well under the force of
normal chewing and usually last several years before a reapplication
is needed. During your regular dental visits, your dentist will check
the condition of the sealants and reapply them when necessary.
Sealants are just for kids, right?
The likelihood of developing pit and fissure decay begins early
in life, so children and teenagers are obvious candidates. But adults
can benefit from sealants as well.
Key ingredients in preventing tooth decay and maintaining a healthy
mouth are twice-daily brushing with an ADA-accepted fluoride toothpaste;
cleaning between the teeth daily with floss or interdental cleaners;
eating a balanced diet and limiting snacks; and visiting your dentist
regularly. Ask your dentist about whether sealants can put extra
power behind your prevention program.
Copyright © American Dental Association