Here's How Your Cavity Get Started
Dental caries is an old disease. Paleontological evidence shows that
it has afflicted humans at least from the time that agriculture replaced
hunting and gathering. Examination of skulls in Britain proposes
that caries prevalence changed little from the Anglo-Saxon period (5th
to 7th centuries) to the end of the Middle Ages, around the year 1500.
Tooth wear during this period was marked and developed early in life.
Some lesions in young people have begun in the chewing surfaces but grew
no further because the rate of erosion was faster than the rate of cavity
progression. Lesions found in skulls dating from this period are most commonly
at the neck and the root areas. Cavity of the crown was rather uncommon.
In the industrialized nations carious lesion normally begins in the chewing
surfaces and develops subsequently surfaces between the teeth. This
modern pattern of caries was not obvious in Britain until the 16th century.
Dietary changes during the 17th century, principally increased refinement
and greater use of sucrose as sugars became more available, are considered
chiefly responsible for developing the modern pattern of caries.
When import duties on sugar in Britain began to be removed in 1845 and
were completely irradicated in 1875, the severity of caries increased.
By the end of the 19th century, dental caries was well established as an
endemic disease of massive proportions not only in Britain but also in
most other developed countries.
How does your dental cavity get started?
The bacteria in your dental plaque converts the sugar that you eat into
the acid through the process known as fermentation. In biochemistry,
it is estimated that one glucose (sugar) molecule can ferment into two
molecules of pyruvic acids.
Bacteria + Sugar ------> Acid
When the acid contacts the outer surface (enamel) of the tooth, it dissolves
the enamel, forming a hole. This hole is called a cavity or dental
caries. Superficial dental cavities are those that occur within the
outermost enamel layer of the tooth, and they require a close observation
from our dentist. If the cavity grows into the softer inner layer
(dentin), the tooth needs to be restored with a filling.
Acid + Tooth surface ------> Cavity
As the cavity becomes bigger and penetrates through the dentin layer, it
gets into the nerve chamber (pulp) at the center of the tooth. This
causes a toothache. A toothache may be treated with a root canal
therapy or an extraction.
Cavity + Nerve ----> Toothache
What is the easiest way to prevent dental cavity?
To prevent from having a cavity you will need:
- to reduce the number of the bacteria in dental plaque by proper
brushing and flossing 2-3 times daily, professional cleaning by the dental
hygienist every six month, and placing the preventive fillings (sealants)
on the chewing surface of the tooth.
- to reduce the your daily sugar intake.
Some people believe that certain races enjoy a sigh degree of resistance
to dental caries. This belief stemmed from the early observations that
some nonEuropean races, such as those in Africa and India, enjoyed a greater
freedom from caries than did Europeans. These assertions have faded as
the recent evidence mounts that global differences in caries experience
are more a result of environment than they are of inherent racial attributes.
There is evidence that certain racial groups, once thought to be resistant
to caries, quickly developed the disease when they moved to areas with
different cultural and dietary patterns.
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