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Human bite force discrimination using specific maxillary and mandibular teeth.

J P Coffey1, W N Williams, G E Turner

  • 1Department of Prosthodontics, College of Dentistry, University of Florida, Gainesville 32610.

Journal of Oral Rehabilitation
|November 1, 1989
PubMed
Summary
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This study investigated bite force discrimination using different teeth. Performance varied significantly between central incisors and first molars, with lower resistance standards yielding better results.

Area of Science:

  • Biomedical Engineering
  • Dental Research
  • Human Sensory Perception

Background:

  • Accurate bite force discrimination is crucial for oral functions.
  • Previous research has not comprehensively compared discrimination abilities across various tooth types.

Purpose of the Study:

  • To determine if significant differences exist in bite force discrimination ability based on specific teeth (incisors, canines, premolars, molars).
  • To compare performance using different resistance standards.

Main Methods:

  • Two studies assessed bite force discrimination using a strain gauge scale and paired-comparisons.
  • Subjects visually monitored bite force against preset resistance standards (500g, 1000g, 3000g).
  • The difference limen (DL) was established for each tooth type and resistance level.

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Main Results:

  • No significant overall difference in bite force discrimination was found between teeth in the first study (incisors and premolars).
  • A significant difference was observed in the second study, with better performance using central incisors compared to first molars.
  • Performance was significantly better with lower resistance standards (500g vs. 3000g, and 1000g vs. 3000g).
  • No significant gender-based performance differences were detected.

Conclusions:

  • Bite force discrimination ability can be influenced by the specific tooth used, particularly when comparing anterior and posterior teeth.
  • Lower bite force standards enhance discrimination accuracy.
  • These findings have implications for understanding oral sensory feedback mechanisms.