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Dentin hypersensitivity, or what patients may describe as "sensitive teeth", is
defined as a short, sharp pain arising from exposed dentin in response to
thermal, evaporative, tactile, osmotic, or chemical stimuli.1 This
can include hot, cold, sweet or sour beverages, cold air, aggressive flossing
and brushing 2. Factors associated with sensitivity include gingival
recession, 3 periodontitis,4 and professional whitening
procedures. In fact, whitening sensitivity, also called bleaching sensitivity,
is the most common side effect for both over-the-counter (OTC) and professional
whitening treatments, and it is experienced by up to 75% of patients who
undergo professional bleaching treatment.5
While dentin hypersensitivity affects as many as one in five people in the
United States,5 across all age groups,2 data indicates
that up to 42% of patients with dentin sensitivity don't tell a dental
professional about their sensitive teeth symptoms.1
Because of this, it is recommended that dental professionals ask patients about
dentin sensitivity at each appointment, and open the discussion about possible
triggers. A thorough clinical exam can also help rule out any underlying
causes.6
Treatment for advanced cases of dentin hypersensitivity can include in-office
topical agents or sealants, but over-the-counter treatment options should be
considered first, or in addition to in-office treatments, to provide increased
protection against sensitive teeth pain. OTC treatments are less-invasive, and
include brands of anti-hypersensitivity toothpastes that contain 5% potassium
nitrate. How does this work? Experts believe nti-hypersensitivity toothpaste
depolarizes the nerves at the denti-pulpal interface; potassium ions penetrate
the dentinal tubule and prevent repolarization, relieving sensitive teeth pain.
It is recommended that patients be instructed to brush twice-daily with
anti-sensitivity toothpaste. With this course of action, protection will build
gradually, and results are typically noticed in two weeks.6
For more information on how one brand of anti-sensitivity
toothpaste—Sensodyne® toothpaste for sensitive teeth and cavity
prevention—can provide pain relief to patients experiencing dentin
hypersensitivity, click here. For more
information on the clinicals and research, continuing education and journal
resources associated with whitening, periodontitis, gingival recession, and
other factors associated with sensitive teeth, click a topic at right.
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