Related Experiment Videos
Biting forces in patients with craniomandibular disorders.
Cranio : the Journal of Craniomandibular Practice
|April 1, 1989
Summary
Treatment for craniomandibular disorders improved symptoms and condition. Bite force measurements revealed persistent variability, suggesting preserved large force adjustments but potential loss of fine motor control due to protective reflexes.
Area of Science:
- Neurology
- Biomedical Engineering
- Dental Science
Background:
- Craniomandibular disorders (CMD) of neuromuscular origin present significant challenges.
- Understanding the impact of treatment on jaw muscle function is crucial for patient recovery.
Purpose of the Study:
- To evaluate the effect of treatment on neuromuscular craniomandibular disorders.
- To assess changes in bite force values and sensory acuity post-treatment.
Main Methods:
- A cohort of 10 female patients with neuromuscular CMD received treatment.
- Standardized methods were employed to record maximal and submaximal bite force values at various dental arch positions.
- Replicate registrations were analyzed for variations before and after treatment.
Main Results:
- Treatment led to a reduction in dysfunctional symptoms and overall improvement in patient condition.
- Significant variation in bite force measurements persisted post-treatment in approximately 60% of measured categories.
- While fine bite-force adjustment acuity appeared diminished, the ability to make large force adjustments remained unaffected.
Conclusions:
- Treatment effectively alleviates symptoms in neuromuscular CMD.
- Persistent bite force variability suggests an underlying inhibitory mechanism controlling jaw-closing activity.
- This inhibitory mechanism may act as a protective reflex, even after symptom reduction.