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Related Experiment Videos

[Is a maxillary prosthesis difficult for patients with trismus?]

H Usui1, K Shimozato, I Oh-iwa

  • 1Department of Maxillo-Facial Surgery, Japanese Red Cross Nagoya First Hospital.

Nihon Jibiinkoka Gakkai Kaiho
|May 19, 1998
PubMed
Summary

Trismus, or limited mouth opening, does not significantly complicate the fabrication of maxillary prosthetics. Difficulty in creating these devices is influenced by factors beyond mouth opening range, including anatomical complexities.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Prosthodontics
  • Reconstructive Dentistry

Context:

  • Postoperative maxillary defects affect approximately 30% of patients.
  • Trismus, a common complication, can present challenges in prosthetic rehabilitation.
  • Understanding factors influencing prosthetic fabrication is crucial for patient outcomes.

Purpose:

  • To investigate the correlation between the severity of trismus and the difficulty in fabricating maxillary prostheses.
  • To identify specific challenges encountered in prosthetic treatment for patients with trismus.
  • To compare prosthetic fabrication outcomes in patients with varying degrees of trismus against a control group.

Summary:

  • A study compared 54 patients with trismus (mouth opening <20 mm) to a control group regarding maxillary prosthesis fabrication.

Related Experiment Videos

  • Trismus severity was categorized into four groups based on mandibular opening range.
  • No significant differences were found in impression failures, prosthesis weight, or fabrication time among trismus groups or compared to controls.

    • Impact:

    • Suggests that trismus severity alone is not the primary determinant of prosthetic fabrication difficulty.
    • Highlights the complex interplay of anatomical factors (e.g., bone defects, scar tissue, lip/cheek mobility) in prosthetic challenges.
    • Informs clinical approaches to managing prosthetic rehabilitation for patients with maxillary defects and trismus.