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Related Experiment Videos

The Christensen prosthesis. A retrospective clinical study

D C Chase1, J W Hudson, D A Gerard

  • 1Department of Oral and Maxillofacial Surgery and Dentistry, University of Tennessee Medical Center, Knoxville, Tenn, USA.

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
|September 1, 1995
PubMed
Summary

The Christensen temporomandibular joint prosthesis system effectively treats severe temporomandibular joint disorders. This study shows significant improvements in function and pain reduction for patients receiving this prosthetic treatment.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomedical Engineering
  • Orthodontics

Background:

  • Severe temporomandibular joint (TMJ) disorders often resist conservative treatments.
  • Surgical interventions are necessary for refractory TMJ disease.
  • The Christensen temporomandibular joint prosthesis system is a potential treatment option.

Purpose of the Study:

  • To evaluate the efficacy of the Christensen temporomandibular joint prosthesis system for severe TMJ disorders.
  • To compare outcomes between different configurations of the prosthesis system.
  • To assess the system's effectiveness in patients unresponsive to prior treatments.

Main Methods:

  • A cohort of 69 patients with severe TMJ disorders were divided into three groups based on prosthesis type: glenoid fossa-eminence with meniscus retention, glenoid fossa-eminence without meniscus retention, and total joint replacement.

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  • Patients underwent surgical intervention using the Christensen prosthesis system.
  • Outcomes were assessed pre- and post-surgery over an average of 3.1 years, measuring pain (Visual Analogue Scale) and incisor opening (Therabite Scale).

    • Main Results:

    • All treatment groups demonstrated statistically significant improvements in function and reduction in pain.
    • Patients experienced enhanced incisor opening post-surgery.
    • The Christensen temporomandibular joint prosthesis system yielded positive results across all evaluated criteria.

    Conclusions:

    • The Christensen temporomandibular joint prosthesis system presents a viable and successful treatment for severe temporomandibular joint disease.
    • The system offers a high degree of success in improving patient function and alleviating pain.
    • Further research may explore long-term outcomes and specific indications for each prosthesis configuration.