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The buccinator muscle is a square, bilateral muscle situated in the mobile and adaptable cheek area.[1] Couper and Myot coined the term "buccinator" in 1694, relating to blowing a trumpet. Notably, this muscle puffs out the cheeks, thus it is also referred to as the "trumpeter's muscle."[2] The buccinator is one of the first muscles to be activated by sucking during infancy. The buccinator contributes to mastication, articulation, and deglutition. Additionally, this structure is a target during cosmetic procedures, being a muscle of facial expression. Botulinum toxin treatment of the buccinator reduces facial synkinesis or undesired involuntary muscle contraction accompanying volitional movements.[16]