Reducing mandibular height to increase mouth opening in unreleasable trismus

J Oral Maxillofac Surg. 2010 Jul;68(7):1628-30. doi: 10.1016/j.joms.2008.08.045. Epub 2010 Apr 22.

Abstract

Purpose: We submit an alternative treatment for unreleasable trismus to increase the interincisal distance and allow adequate oral nutrition and masticatory function.

Patient and methods: The patient presented with severe trismus after receiving postoperation radiotherapy for oral carcinoma. We undertook radical release of the left-sided trismus, and covered the resultant soft tissue defect with an anterolateral thigh free flap, but the patient was only able to open his mouth an interincisal distance of 8 mm. The right mandible was accessed and the functionless residual teeth were extracted. Marginal mandibulectomy of the native mandible was performed.

Results: Dental implants (POI, Kyocera, Japan) were inserted into the leveled right mandible. A bridge dental prosthesis was inserted and resulted in a final functional interincisal distance of 19 mm.

Conclusion: We offer that leveling the native mandible to match the reconstructed side is a simple procedure that can be reasonably used as an alternative measure in a selected group of patients.

Publication types

  • Case Reports

MeSH terms

  • Alveolar Process / surgery*
  • Carcinoma / radiotherapy
  • Carcinoma / surgery
  • Contracture / etiology
  • Contracture / surgery
  • Dental Implants
  • Denture, Partial
  • Functional Laterality
  • Humans
  • Jaw, Edentulous / rehabilitation
  • Male
  • Mandible / surgery*
  • Middle Aged
  • Mouth Neoplasms / radiotherapy
  • Mouth Neoplasms / surgery
  • Plastic Surgery Procedures / methods
  • Postoperative Complications / surgery*
  • Radiotherapy / adverse effects
  • Temporomandibular Joint Disorders / etiology
  • Temporomandibular Joint Disorders / surgery*
  • Treatment Outcome
  • Trismus / etiology
  • Trismus / surgery*

Substances

  • Dental Implants