Parts of the tooth
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Parts of the tooth
Diego Solís Acosta
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Tooth definition
The tooth is a hard anatomical organ, located
in the alveoli of the maxillary bone, in which
different structures that make up the cement,enamel, dentin, pulp and alveolar bone
chamber both united by a periodontal ligament
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Parts of the tooth
� Enamel
� dentine
� dental pulp
� Cement
� periodontal ligament
� Ence
� Alveolar bone
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Tooth
dental pulp
lveolar
one
Gum
periodontal
ligament
Cement
dentine
Enamel
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Enamel
Is a tissue composed of
hydroxyapatite and protein, is
the hardest tissue in the human
body is translucent, insensitiveto pain because it doesn´t have
nerve endings
Parts of tooth
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dentine
Mineralized tissue, but by less than enamel, is
responsible for the color of teeth. Containing
tubules where odontoblast project. Dentin
provides elasticity to the fragile but hard enamel.
Parts of tooth
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dental pulp
Mesodermal tissue is
composed of a soft tissue
containing blood vessels
that carry blood to thetooth and nerve fibers
that provide sensation to
the tooth
Parts of tooth
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Cement
� Highly specializedconnective tissue. It is a
hard layer, opaque andyellowish dentincovering the root levelof the tooth. It isresponsible forattaching the tooth withthe rest of the mandibleor maxilla.
Parts of tooth
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Periodontal ligament
This structure is a tissue
that surrounds the root
and alveolar bone joins.
Among its features arethe inclusion of the
tooth to the alveolar
bone and resistance to
impact shock.
Parts of tooth
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Gum
Is the part of the buccal
mucosa, its soft and
pink around the neck of
the teeth and coversthe alveolar bone.
Parts of tooth
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Alveolar bone
Alveolar bone called the
bone of the maxilla and
mandible that contains
or is of the watershedor alveoli, which kept
the roots of teeth
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Dental crown
Part of the tooth is open or visible in the oralcavity. Layer overlying tooth is the enamel, and
can be seen in the functional mouth dental
organ. This portion of the tooth is exposed to
the oral environment on a permanent basis
Morphological structures of the tooth
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� called cervical area is the
union of the crown with
the root and is located in
the marginal gingiva.
Tooth neck
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This part of the tooth is not visible in theoral cavity and that is embedded in the
tooth socket, into the bone, and is covered
with dental cement
Tooth root
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� Dental crown
� Tooth neck
� Tooth root
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Dental development
Primary dentitionAlso called milk teeth start to
lose 5 or 6 years old beingreplaced by permanent teeth
or second dentition dentition
is composed of 10 non-
permanent teeth
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Second dentition or permanent
dentition
� This kind of dentition begins to erupt at 6 or 7 years
old and is teething has 32 pieces which is divided
into four groups: incisors, canines, premolars and
molars these items are final and in theory should lasta lifetime
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Types of teeth permanents
Incisors
Anterior teeth with sharp edges.
Its main function is to cut food.
They have a conical crown and a
root only. The upper incisors are
larger than the lower ones are
usually 8 pieces
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Canine
With a sharp cusp. They
are called tusks in
animals. They are
located next to theincisors and their
function is to tear food.
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Have two pointed cusps. Facilitate the
crushing of food.
Premolars
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Molars
Broad peaks. Have the
same function of the
premolars. The crown
of these teeth may havefour or five bumps, like
two, three or four roots.
They are the largest.
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