Specific Region of the Buccal Region

Description

Lateral profile anatomy centers on the buccal (cheek) region, with the masseter muscle highlighted over the lateral surface of the mandibular ramus and angle, extending superiorly toward its attachment along the zygomatic arch. Superficial facial landmarks include the zygomatic prominence superior-anterior to the mandibular angle and the soft tissue of the cheek overlying the buccinator and buccal fat pad. The parotid region lies posterior to the masseter, and the expected course of the parotid (Stensen) duct runs anteriorly across the masseter before turning medially to pierce the buccinator opposite the maxillary second molar. Facial artery and vein typically cross the inferior border of the mandible anterior to the masseter, then ascend within the cheek toward the nasolabial region. Clear relationships. Masseter anatomy matters because it is both a dominant elevator of the mandible and a common source of facial pain, asymmetry, and trismus in temporomandibular disorders, bruxism, and post-radiation fibrosis. Surgical and procedural planning in the cheek often hinges on the masseter’s position relative to the parotid duct and the buccal branch of the facial nerve, structures at risk during parotid surgery, laceration repair, and cosmetic injection or energy-based contouring of the jawline. The mandibular angle and zygomatic arch also serve as palpable bony guides when assessing fractures or planning fixation in maxillofacial trauma. Dental anatomy courses and head and neck dissection labs can use this profile to orient students to surface anatomy before intraoral identification of the parotid papilla and buccinator. Medical publishers will find it suited for chapters on mastication, facial trauma, parotid duct injury, and masseter hypertrophy management (including botulinum toxin injection planning with attention to the parotid duct and facial vessels). Anatomical accuracy verified by SciePro's Medical Advisory Board.