J Korean Acad Prosthodont.  2008 Dec;46(6):586-590.

Rehabilitation of a patient with a post radiotherapy trismus with an obturator and a maxillary denture using magnet attachments

• Bae HE
• Jeon JH
• Chung MK

Abstract

Construction of an obturator for rehabilitation of a patient who underwent a maxillectomy is vital. Routinely a constructed obturator includes denture portion. A patient who may present anatomical limitations due to surgical or radiotherapy complications often challenges the clinician. Purpose: This clinical report describes a patient with severe trismus after surgical resection and radiotherapy treatment of a tumor in the upper left maxilla. Conclusion: This report describes the concepts of using a rotational path insertion for an obturator and a separately constructed maxillary denture. The stability and retention of the obturator were obtained from anatomical features. Where as these were achieved through magnetic attachments and the remaining edentulous ridge to ensure esthetic and function of the prosthesis.

Keyword

Maxillectomy; Obturator; Post radiotherapy trismus

MeSH Terms

Dentures
Dietary Sucrose
Humans
Magnetics
Magnets
Maxilla
Prostheses and Implants
Retention (Psychology)
Trismus
Dietary Sucrose

Figure

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  Fig. 1. a The occlusal view of the healed maxilla after a subtotal maxillectomy and radiotherapy. b. Limited maximum intercanine distance even after use of tongblades to improve mouth opening due to trismus.

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  Fig. 2 . a Intraorally fully seated obturator. b. The obturator at mid of its medio-anterior rotational insertion path.

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  Fig. 3. Matching surface of the obturator and the maxillary denture after placing attachment components.

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  Fig. 4. The extraoral lateral and front view of compiled prosthesis.

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  Fig. 5. The intraora view of the prosthesis in position.

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