Tooth Anatomy Flashcards
what are the 4 types of teeth?
incisors, canines, premolars, molars
how many teeth do adult humans generally have?
32
what are the 2 main structures of the tooth?
crown and root
what is the crown of a tooth?
the portion above the gums
covered in enamel
what is the root of a tooth?
holds the tooth in the jaw
covered by gums
root anchors tooth to periodontal ligament
what is the periodontal ligament?
soft connective tissue that lines the tooth socket
what are the 4 materials that teeth are made of?
enamel
dentin
cementum
pulp
what is enamel?
protective outer layer
shields teeth from caries
hardest substance in human body
what is dentin?
just underneath enamel
not as strong as enamel
when dentin is exposed, cavity risk increases
what is cementum?
covers tooth root
anchors tooth into jaw along with periodontal ligaments
what is pulp?
innermost layer of the tooth
contains nerves, blood vessels and connective tissues
are teeth bones?
no, they do not contain marrow
