Summary Long Buccal Nerve Block | Dental Local Anesthesia Notes | Step-by-Step Technique & Complications

LONG BUCCAL NERVE BLOCK
(Buccal Nerve Block / Buccinator Nerve Block)

📌 DEFINITION (Write first in exam ⭐)
Long buccal nerve block is a supplementary local anesthetic technique in which anesthetic
solution is deposited in the buccal vestibule distal and buccal to the mandibular molars to
anesthetize the buccal soft tissues supplied by the long buccal nerve.

🧠 NERVE SUPPLY (VIVA GOLD)
●​ Branch of mandibular nerve (V3)
●​ Sensory nerve
●​ Does NOT supply teeth pulp

🎯 NERVE ANESTHETIZED
●​ Long buccal nerve (branch of mandibular division of trigeminal nerve)

📍 AREAS ANESTHETIZED (VERY IMPORTANT TABLE)
Structure Anesthetized?
Buccal gingiva of mandibular molars YES

❌
Buccal mucoperiosteum (molar region) YES

❌
Mandibular teeth pulp NO

❌
Lingual tissue NO

🔥
Lower lip NO
Examiner trap:
Long buccal nerve block does NOT anesthetize teeth.

📌 INDICATIONS (Exam Favourite)
●​ Extraction of mandibular molars
●​ Periodontal procedures in molar region
●​ Buccal flap surgery
●​ When buccal soft tissue anesthesia is required
●​ Used as supplementary to IANB or Gow-Gates

❌ CONTRAINDICATIONS
●​ Infection at injection site
●​ Acute inflammation in buccal mucosa

📍 ANATOMICAL LANDMARKS (Must Memorize)
●​ External oblique ridge
●​ Mucobuccal fold

👉
●​ Distal and buccal to last mandibular molar
Injection site: Buccal mucosa distal and buccal to mandibular last molar

💉 ARMAMENTARIUM
●​ Aspirating syringe
●​ 25 or 27 gauge short needle
●​ Local anesthetic cartridge (2% Lignocaine with Adrenaline)
●​ Topical anesthetic