Frequently Asked Questions
Exposure to all sources of radiation -- including the sun,
minerals in the soil, appliances in your home, and dental
X-rays -- can damage the body's tissues and cells.
Fortunately, the dose of radiation you are exposed to during
the taking of X-rays is extremely small. Radiation is
measured in units called millirems (mrems). The average dose
per person is about 620 mrems per year. For four digital
x-rays taken called a series of bitewings, you will be
exposed to 0.5mrems.
A cavity is an erosion in the outer surface of the tooth
causing a pit in the tooth in which bacteria can reproduce.
When this erosion becomes deep enough, it can involve the
nerve in the center of the tooth causing a painful toothache
and swelling. Cavities themselves are not typically painful,
unless they have become deep enough to involve the nerve
root; this is why most dentists recommend twice-yearly
screening exams to look for cavities and treat them, if they
are present, while they are small.
There are several reasons that adults may lose teeth. The
most common reasons involve the need for improved oral
hygiene and a better understanding about the impact of their
dietary habits. The Dental profession as a whole recommends
that adults brush their teeth at least twice a day and floss
at least once a day. These habits help slow the formation of
dental plaque. This helps limit the colonies of bacteria
which can lead to problems with both the teeth and their
support, namely the bone and gums Plaque build-up can cause
cavities to form as the bacteria eats away at enamel. It can
also cause your gums to become inflamed and infected. Tooth
decay and gum disease can both weaken the tissues supporting
your teeth, which can make your teeth loosen and fall out.