Anatomy study note · Head and neck
Teeth
The teeth sit in the alveolar sockets of the maxillae and mandible, held by periodontal ligaments (a fibrous joint). Incisors, canines, premolars and molars each have an enamel-covered crown and a root.
Key points
- Deciduous 20; permanent 32.
- Upper: superior alveolar nerves; lower: inferior alveolar nerve.
- Third molar erupts 17–30 years.
- Enamel: ectoderm (ameloblasts). Dentine: mesoderm (odontoblasts).
- Third molar erupts 17–21 years (Singh).
- Enamel (hardest, no repair) / dentin (odontoblasts) / cementum.
- Periodontal ligament holds the tooth in its socket.
The full note in the atlas also covers
Features · Nerve supply · Lymph drainage · Histology · Development · Clinical notes
Sign in free to see it on the 3D model, read the full note and practise questions on it.
Written from
- Snell’s Clinical Anatomy by Regions, 10th ed., ch. 12, PDF pp. 1656–1657, 1670, 1724–1726
- Inderbir Singh’s Human Embryology, ch. 12, PDF pp. 161, 163–168
- BRS Cell Biology & Histology, 7th ed., ch. 16, PDF pp. 285–286
More from the head and neck
- Temporal bone
- Temporal lobe
- Temporalis
- Temporomandibular joint
- Tensor veli palatini
- Thalamus
- Thyroarytenoid and vocalis
- Thyrohyoid
- Thyroid cartilage
- Thyroid gland
- Tongue
- Trigeminal nerve
Privacy policy · Designed by DATXOC LLC.