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. 2017 Sep 28;20(3):196–201. doi: 10.1001/jamafacial.2017.1385

Figure. Demonstration of Botulinum Toxin Injection Into the Buccinator Muscle.

Figure.

Buccinator injections are performed beneath the dentate line in the buccal mucosa below and anterior to the level of Stenson’s duct. An EMG is used to monitor presence of muscle hyperactivity on insertion and with voluntary movement of the targeted muscle prior to administration of botulinum toxin.