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Updated: Sep 9, 2025

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice
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Quantifying Bite Forces for Solid Foods: Implications for Patients Postmandibular Reconstruction.

Jacob J Clark1,2, Emma K Charters2,3, Kai Cheng2,3

  • 1School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, Australia.

Head & Neck
|September 3, 2025
PubMed
Summary
This summary is machine-generated.

Understanding bite forces is crucial for dietary guidelines after mandibular reconstruction. This study quantifies food forces and estimates safe bite limits, aiding recovery and nutrition.

Keywords:
IDDSIbite forcedietary recommendationsfinite element analysismandibular reconstruction

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Area of Science:

  • Biomechanical Engineering
  • Oral and Maxillofacial Surgery
  • Food Science

Background:

  • Dietary guidelines post-mandibular reconstruction lack quantitative bite force data.
  • Mastication forces for various food textures are not well-defined.
  • This gap complicates patient recovery and nutritional management.

Purpose of the Study:

  • To quantify the bite forces required for different food consistencies.
  • To estimate safe bite force thresholds for patients undergoing mandibular reconstruction.
  • To inform evidence-based dietary recommendations using the International Dysphagia Diet Standardisation Initiative (IDDSI) framework.

Main Methods:

  • Prepared 20 food items adhering to IDDSI Levels 5-7b.
  • Measured incisor and molar bite forces using a custom force meter.
  • Employed Finite Element (FE) analysis to simulate safe force thresholds for various mandibular reconstruction complexities.

Main Results:

  • Bite forces ranged from 4.6 N (IDDSI 5, incisors) to 45.4 N (IDDSI 7b, molars).
  • Molar bite forces were significantly higher than incisor forces (p < 0.001).
  • FE analysis suggested safe bite forces between 30-115 N, varying with reconstruction type; IDDSI 5 foods were universally safe, while higher levels posed risks.

Conclusions:

  • Findings provide quantitative data for dietary recommendations post-mandibular reconstruction.
  • The IDDSI framework is validated for guiding food consistency choices.
  • This research supports improved patient outcomes through tailored nutritional support.