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2.1 Tooth’s anatomy
o Each tooth has two main parts, the crown and the root as shown in Fig.1.
o The crown and the root meet at the neck of the tooth, which is normally just
below the gum margin.
• The crown
This is the part of the tooth that we see in the mouth.
It is made up of enamel, dentine and pulp.
The appearance of teeth varies in shape and size.
o The front incisor teeth have a straight edge as a cutting tool.
o The canine or eye teeth are the pointed long teeth between the incisor
and the premolar teeth.
o The pre-molar and the molar teeth are larger and have cusps.
o A cusp is the raised pointed part of the chewing surface of a tooth.
o The presence of large cusps on pre-molar and molar teeth marks the
main difference between them and the front teeth.
o Pre-molar teeth (bicuspids) have two cusps.
o Molar teeth each have four or more cusps.
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