Mandibular LA & Complication

Bismillah..

3)inferior alveolar nerve (IAN/IDN)

-Medial: lateral pterygoid
-Posterior: lingual nerve
-Enters mandible at the lingula: the IAN come beside the lingula then run in the canal; the lingual determine the area where the mandibular foramen open.
-the lingula: a bony projection: where there is a tendon attached to it.( gives attachment to sphenomandibular ligament)

-ditemani oleh IA artery and vein ( artery di depan nerve)

-travels within the inf alveolar canal until mental foramen.

- in the 1st 1/3 canal: mainly medial

-angle of mandible: canal become exactly at the middle of the mandible in the central

-then, it goes laterally (outside)

-finally,: open in small opening called mental foramen; then IDN dived into incisive nerve and mental nerve.

-incisive nerve: continues inside mandible canal, innervates mandibular canines and incisors

-mental nerve(sensory): gives sensation to lips and chin

-mental nerve branch of IDN, IDN branch of V3

-mental nerve emerges at the mental foramen (between base of 4 & 5, its mainly soft tissue nerve)

-kalau nak anesthesize  mental nerve kita guna mental block( utk extract lower 4) sbb nanti dia anesthesize sekali main nerve ID and insicive branch.

4) nerve to mylohyoid( motor nerve)

IDN provides innervation to the mandibular teeth pulp + buccal + lingual bone + buccal gingiva of the anterior teeth by mental nerve

buccal gingiva of posterior teeth: innervated by long buccal nerve.

kalau nak cabut lower 6, kena anesthesize(ID block) : long buccal nerve, and lingual nerve.

Terminal branches of IVN:
1) insicive nerve- remains within incisive canal from mental foramen to midline

2) mental nerve: exits mental foramen and divides into 3 branches: innervate skin, lips and labial mucosa.