Fig. 1
From: Ultrasound-guided inferior alveolar nerve block for trismus during dental treatment: a case report
Ultrasound images and technique of inferior alveolar nerve block. A 22-G block needle was inserted using the lateral extraoral technique to infiltrate the inferior alveolar nerve. a, before needle insertion; Cor, coronoid; Con, condyle; M, masseter; LP, lateral pterygoid muscle; b, needle insertion; N, needle; c, after infiltration of local anesthesia; LA, local anesthesia