Fig. 6.From: Application of botulinum toxin in maxillofacial field: part I. Bruxism and square jawIn the case of a square jaw patient, inject the toxin 1.5–2 cm far away from the margin of the mandible. Inject the toxin into the center of the triangle formed with a line joining corner of the mouth and tragus of the ear with a line joining the angle of the mandible and corner of the mouthBack to article page