Teeth

 

 


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A tooth has  a crown, and a root. The crown is covered with enamel and the root with cement, which meet  the neck called the cervical margin. The inner core of the tooth is actually made up of dentin. Dentin has a central pulp cavity, which  is divided into pulp chamber (see pulp) above (crown) and pulp canal below (root). The root of tooth enters the alveolar sockets of the jaw (mandible or maxilla). Periodontal ligament surrounds the root of the tooth within the socket of the jaw bone. Near the cervical margin, the tooth, periodontal ligament and bone are covered by gums.

Arteries of teeth

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Inferior alveolar artery supplies the entire lower jaw, i.e. mandibular teeth

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Anterior superior alveolar artery is a branch of the infra-orbital artery

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Posterior superior alveolar artery is from maxillary artery

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Middle superior alveolar artery, when present may come from the infra-orbital artery.

Veins of teeth

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Veins of the lower jaw drain into the inferior alveolar vein, some of which then enter through the mental foramen into facial vein and others to the pterygoid venous plexus via the mandibular foramen.

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Veins of the lower jaw accompany the superior alveolar arteries as enumerated above
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Anterior superior alveolar vein

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Middle superior alveolar vein

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Posterior superior alveolar vein

These drain into the facial vein or the pterygoid venous plexus.


Blood/nerve supply to the teeth. Rollover mouse

Nerve of teeth: Lower jaw

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Teeth are supplied by inferior alveolar nerve

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Buccal nerve supplies the lower gum

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Branches of lingual nerve supplies the lower gum

Nerves of teeth : Upper jaw

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Anterior superior alveolar nerve

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Middle superior alveolar nerve

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Posterior superior alveolar nerve

Gum is supplied by 

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Buccal nerve and

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Greater palatine nerve

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Nasopalatine nerve


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Dental specialization in man

 

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1 central incisor 2 incisor, 3 canine, 4, 5, premolar, 6,7,8 molars

 

 


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