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Related Experiment Videos

Engineered bar design for a midface defect: a case report

J D Anderson1, M Kasra

  • 1Department of Prosthodontics, University of Toronto, Faculty of Dentistry, Ontario, Canada.

The International Journal of Oral & Maxillofacial Implants
|May 1, 1996
PubMed
Summary
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This case report details an implant-retained bar design for a patient with midface and maxillary loss. The innovative prosthesis significantly improved speech, eating, and facial appearance.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomedical Engineering
  • Prosthodontics

Background:

  • Reconstruction of extensive maxillary and midfacial defects presents significant challenges.
  • Restoring function and aesthetics after severe trauma or oncologic resection requires advanced prosthetic solutions.
  • Implant-retained prostheses offer a stable foundation for orofacial rehabilitation.

Observation:

  • A patient presented with a complete absence of the midface, including the maxilla.
  • Conventional prosthetic rehabilitation was not feasible due to the lack of bony support.
  • The need for a stable, retentive superstructure to support dental and facial prostheses was identified.

Findings:

  • An implant-retained bar was designed using finite element analysis to optimize force distribution.

Related Experiment Videos

  • The implants and prosthesis provided crucial support for the upper lip, compensating for absent bone.
  • The final restoration successfully restored lip support, improving mastication and speech intelligibility.

    • Implications:

    • This case demonstrates the successful application of computer-aided design and finite element analysis in complex maxillofacial reconstruction.
    • Implant-supported bar prostheses can provide predictable and stable outcomes for patients with severe midface defects.
    • Improved speech, eating, and aesthetics significantly enhance patient quality of life in challenging reconstructive cases.