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Related Experiment Videos

Strength and bite, Part 1: An analytical review.

A G Forgione1, N R Mehta, W L Westcott

  • 1Tufts University School of Dental Medicine.

Cranio : the Journal of Craniomandibular Practice
|October 1, 1991
PubMed
Summary

The K-MORA intraoral device likely increases isometric strength in individuals with mixed occlusions. Previous research often failed to replicate findings due to methodological differences and unproven placebo effects.

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Area of Science:

  • Dental biomechanics
  • Kinesiology
  • Oral appliance therapy

Background:

  • Early research on bite and strength enhancement focused on malocclusion.
  • The K-MORA device, supporting a specific mandibular position, showed increased isometric strength.

Purpose of the Study:

  • To evaluate the effectiveness of the K-MORA device on bite and strength.
  • To address inconsistencies and criticisms in previous research regarding strength enhancement.

Main Methods:

  • Utilized a functional criterion (locking response to Isometric Deltoid Press) for mandibular positioning.
  • Compared isometric strength findings with subsequent studies using different criteria and isokinetic measurements.

Main Results:

  • Original studies demonstrated increased isometric strength with the K-MORA device.
  • Subsequent research often used different criteria, tested isokinetic strength, and incorrectly attributed positive findings to placebo effects.

Conclusions:

  • Published and unpublished data suggest the K-MORA device likely increases isometric strength.
  • Isokinetic strength studies are often irrelevant to the effects observed with the K-MORA device in mixed occlusion populations.

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