Dental/teeth in the digestive system
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Teeth
modified bone
crown
the part of the teeth that are exposed above the gums
Root
the part of the tooth that fits intro the socket
Neck
connects the crown to the root
Enamel
this is the outer covering of the tooth which is the hardest substance in the body
Dentin
softer tissue that is beneath the enamel and makes up most of the tooth
Pulp cavity
loose connective tissue in the center of the tooth that contains the blood vessels and nerves
Cementum
calcified connective tissue that covers the surface of the roots
periodontal ligament
a ligament that anchors the tooth in the bony socket
When does permanent dentition occur? (when do we get all of our teeth)
occurs by the mid teens except the third molars
When do we develop third molars/wisdom teeth?
ages 17-25
What is primary dentition
basically emerging of baby teeth that later fall out
Deciduous teeth are also known as
baby teeth
when do deciduous teeth emerge?
between 6 months and 2 years
When do most deciduous teeth/baby teeth fall out?
between the ages of 6-12
What are the main diseases associated with the teeth?
• Cavities or caries • Dental plaque • Gingivitis • Periodontitis
Cavities or caries
the deterioration of the enamel and dentin by bacteria
dental plaque
a film of sugar and bacteria that adhere to the root.
Gingivitis
inflammation of the gums usually due to an accumulation of plaque on the teeth
Periodontitis
an infection of the tissue around the teeth due to excess plaque
which disease associated with teeth leads to the loss of teeth?
Periodontitis
what leads to calcium dissolving in the teeth?
when you have dental plaque, the combination/metabolism of sugar and bacteria releases acids which dissolve the calcium in the tooth.