blood supply of the jaws and teeth

Blood Supply of the Jaws and Teeth

By : Ayaan Maqsood

Arties carry blood from the heart to the tissues of the body.

The principal arteries which supply the head and neck are the common carotid arteries.

At about the level of hyoid bone each common carotid artery divides into an external carotid artery and an internal carotid artery.

Internal carotid artery supplies the tissues of the cranium and the eyes.

External carotid artery, with its many branches, supplies the exterior of the head, the face and much of the neck.

External carotid artery, just above its division from the common carotid artery gives off the lingual artery which supplies the tongue.

Just above the origin of lingual artery, it gives off another branch, the facial artery, which supplies the soft tissues of the side of the face.

At about the level of the lower part of the ear, the external carotid divides into its two main terminal branches, the maxillary artery and the superficial temporal artery.

Maxillary artery through various branches supply the bones of the jaws, the teeth and their supporting tissues.

Important branches of Maxillary artery are :-

Inferior alveolar artery supplies mandible and the mandibular teeth.

Enters to mandible through mandibular teeth.

Posterior superior artery Supplies the maxilla and the roots of the last maxillary molar tooth.

Bone and teeth including the first bicuspid.

Palatine artery supplies the soft tissues of the hard palate, gingival tissue on the palatine or lingual side of the maxillary teeth.

Emerges into the roof of the mouth through the Greater palatine foramena.

Infraorbital artery supplies incisors and cuspids of the maxilla.

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