The teeth are best described as layered or laminated organs each
of which is divided into two major anatomical parts; The root, that
part below the gum tissue which is attached to the alveolar bone,
and the crown portion, that part which is visible in the mouth above
gum tissue.

A tooth is very much like an iceberg. The root usually being much
longer in proportion to the crown and hidden in the jaw bone.

The pulp tissue (or nerve tissue) is a soft blood-filled sensitive tissue
that is immediately enclosed by a hard substance called DENTIN.
This dentin layer within the root is in turn covered by an outside layer
called the CEMENTUM, a hard bone -like tissue while the dentin in the
crown portion of the the tooth is covered and protected by the ENAMEL.

The enamel is an extremely hard and dense tissue. It is in fact, the
second hardest ,naturally occurring substance in the world. Only
diamonds are harder in comparison.

Such a quality of hardness is so very important in view of the amount
of abuse the teeth are subjected too, when chewing all kinds of
different types of foods and the grinding and gnashing that can and
does occurrs in the general population.

The pulp tissue inside the crown is housed in a space called the
PULP CHAMBER. That, which is in the root area ,is confined to a
narrow ,ribbon-like passageway called the ROOT CANAL, which is
connected to the pulp chamber.

The pulp tissue is actually the remains of embryological tissue
that originally manufactured the tooth. It has the power to make
hard calcified tissue , manufacture and repair tooth structure.

That said, the pulpal tissue cannot repair and regenerate decayed
parts of the tooth. The function of the pulp is the bodies defense
mechanism against decay, trauma and other irritants.

The pulpal tissue can respond to irritants and trauma by
manufacturing a new hard tissue called ” secondary dentin” which
is formed on the walls of the root canal and especially the pulp

When decay begins to invade the enamel stucture of the tooth
crown , it moves towards the pulp chamber where it is met by the
secondary dentin layer ,layed down by the retreating pulpal tissue.

Although this race is almost always won by the decay process,this
defense mechanism often will give a dentist time to intervene and
provide a happy ending to the drama described.

Hence,small cavites are more readily treated than larger cavities
that have gone undetected due to neglect and infrequent dental

Now perhaps you will understand the reason why regular dental
office visits are essential, important and highly recommended.That
way a smaller problem can be treated early before it becomes a much
larger and more costly one!

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