The fiber bundles of the muscle are divisible into four sets, all of which extend into the orbicularis oris. 3 Kang et al 4 have also described a tentative physiological role, suggesting that the buccinator and orbicularis oris act as a dilator of the duct for the buccinator muscle fibers, which extend to the terminal portion of the parotid duct.īuccinator muscle arises from the molar portion of the alveolar process of the maxilla, the buccinator crest of the mandible, and the pterygomandibular raphe of the bucco-pharyngeal fascia. The buccinator usually initiates the sequence followed quickly by the orbicularis oris. The buccinator and orbicularis oris play a definite role in beginning the process of swallowing by producing a peristaltic-like wave of contractions originating in the oral cavity and passing pharyngeally. The orbicularis oris, buccinator, and superior constrictor muscles functionally perform as a unit in the acts of swallowing, blowing, sucking, pronouncing vowels, chewing, and coughing. It is frequently referred to as an accessory muscle of mastication because of its role in chewing food and swallowing and compressing the cheeks against the molars, as well as its use for whistling, sucking, and blowing. The buccinator muscle is a plain, square-shaped bilateral mimic muscle, which composes the mobile and adaptable portion of the cheek. The buccinator muscle may pose problems similar to thick, wide, and crestally attached freni in the region of molars near its origin over the maxilla and mandible. For the same reason and also for the purposes of appropriate prosthodontic management, coronally attached muscles may require apical repositioning. 1 Similarly, muscle attachments near the crest of the alveolar bone in edentulous areas or near the marginal tissues in dentate areas may create problems mimicking those of high frenal attachments.Ĭohen 1 suggested that the frenulum must always be removed when it is so thick and wide that it may interfere with toothbrushing. A fixed bridge was fabricated and the long-term results of the fixed bridge therapy were assured, because the patient could maintain oral hygiene well after the muscle repositioning operation.Ī healthy periodontal complex is one capable of withstanding the stress of mastication, toothbrushing, trauma from foreign objects, tooth preparation associated with crown and bridge, subgingival restorations, orthodontics, inflammation, and frenulum pull.1 A frenum is a small band or fold of mucosal membrane that attaches the lips and cheeks to the alveolar process and limits their movements. The area was then considered for prosthodontic therapy. The healing was uneventful, and significant apical repositioning was observed. Presented here is a case of abnormal buccinator muscle attachment, which was relocated apically by surgical means using an acrylic stent. It may cause various problems in routine oral exercises or restoring the edentulous area. Crestal attachment of buccinator muscle is a rare phenomenon. One such abnormality is crestal attachment of the frenum or muscle on the alveolar process. Anatomical abnormalities are frequently associated with problems.
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