Researchers Propose TMD Definition for GBD - Summary - MDSpire

Researchers Propose TMD Definition for GBD

  • By

  • Kathryn Wighton

  • March 23, 2026

  • 3 min

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Objective:

To develop a standardized lay description for temporomandibular disorders (TMDs) to improve their representation in Global Burden of Disease (GBD) estimates.

Key Findings:
  • TMDs affect approximately one in ten adults and impair oral function and quality of life.
  • No existing lay descriptions adequately captured the characteristics of painful TMDs.
  • The proposed lay description includes specific pain locations and characteristics.
  • TMD severity was categorized into mild, moderate, and severe based on pain duration, intensity, and frequency.
Interpretation:

Accurate lay descriptions are crucial for estimating disability weights, which can influence the perceived burden of TMDs in global health metrics.

Limitations:
  • The consensus process did not follow a formal Delphi methodology.
  • Participants may not have fully represented all professions, regions, or cultural perspectives.
  • Discussions were conducted in English, potentially affecting wording and interpretation.
Conclusion:

This work is an initial step towards quantifying painful TMDs in GBD estimates, highlighting the need for future studies that incorporate patient perspectives.

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