Tooth Anatomy

inner and outer portions of the tooth

Clinical Crown/ Atomic Crown

the only part of the tooth that is visible above the gum line

Cementum Enamel Junction (CEJ)

CEJ is the portion of the tooth where enamel and root meet

Enamel

Hardest substance in the body and covers the dentin surface of the crown

Dentin

Hard Tissue that makes up majority of the tooth also can regenerate

Pulp

Soft Tissue containing nerves and blood vessels to nourish dentin in side the tooth

Root

Extending from the crown into the alveolus of maxilla and mandibular leading to the apical foramen

Neck

A junction where the Crown meets the Root

Cementum

Yellowish tissue covering the root where periodontal ligaments/fibers are embedded also can regenerate

K-9, Premolar and Anterior teeth include incisors

Chisel shaped crowns for cutting and tearing

Molars

Flat crown with distinctive cusp for crushing

Shape of crowns determines

Function

Periodontal ligaments (membrane)

Secures tooth root in socket (bony alveolar)

Root function

Transmit nerves and vessels to the pulp chamber

4 tissues that make up the tooth

Enamel, Dentin, Cementum, Pulp

Alveolar Bone

layer of thin but compact bone that forms the sockets that seperate each tooth

Socket

intradermal septum

Sulcus

Space or pocket between the gum and tooth not extended pas the neck of the tooth