Corpus: Infraorbital foramen
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English:
Definition[Bearbeiten]
The infraorbital foramen is a small bony opening of the facial skull below the inferior orbital rim.
Anatomy[Bearbeiten]
The infraorbital foramen is located in the maxilla, above the canine fossa. It is found about 1 cm below the lower orbital rim. It is the opening of the infraorbital canal to the surface of the facial skull. The following structures emerge from the skull in it:
- Infraorbital artery
- Infraorbital vein
- Infraorbital nerve
Clinic[Bearbeiten]
The infraorbital foramen is a trigeminal nerve pressure point. It enables conduction anaesthesia of the infraorbital nerve, which can be performed both extraorally and intraorally. It is used, for example, for tooth extractions in the anterior and posterior region. With correctly placed anaesthesia, the analgesia covers the ipsilateral incisors and canines as well as the premolars. Parts of the oral vestibule, the equilateral half of the upper lip and the nasal wing are also anaesthetised.