Dental anatomy and histology

The tooth and its tissues, dentition and eruption, the periodontium, maxilla and mandible, trigeminal innervation, the TMJ and the spaces dental infections spread through.

10 pages

• Enamel, dentine, cementum and pulp: histology and defectsEnamel is made once by cells that then disappear; dentine keeps growing all life
• Fascial spaces: where dental infections spreadPus from a tooth follows the path of least resistance into spaces of the face and neck
• Maxilla and mandible: applied anatomy for dentistryThe upper teeth sit in the maxilla, next to the maxillary sinus; the lower teeth sit in the…
• Nerves of the teeth and mouth: trigeminal (V) and facial (VII)The trigeminal nerve carries feeling from the teeth and mouth; the facial nerve moves the face
• Primary and permanent dentition and FDI tooth numberingChildren have 20 primary teeth and adults 32 permanent teeth
• Saliva and the oral microbiomeSaliva washes the teeth, neutralises acid and fights germs
• Temporomandibular joint and the muscles of masticationThe jaw joint both hinges and slides, with a disc between the bones
• The periodontium: gingiva, ligament, cementum and alveolar boneThe periodontium is everything that holds a tooth in place: the gum, the ligament, the root…
• The tooth: crown, root, enamel, dentine and pulpA tooth has a hard outer shell (enamel and dentine) around a living core (the pulp) with nerves…
• Tooth eruption: when the teeth come inBaby teeth usually start at about six months and are all in by about three years; permanent…

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← Dentistry

Educational content; it does not replace assessment by a dentist or doctor and is not a clinical instruction. For facial or neck swelling with difficulty swallowing or breathing, a knocked-out tooth or bleeding that will not stop, go to an emergency department at once.

Representative model, for educational purposes only.