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Occlusal acuity and bite force in young adults
Rebeca Sava1, Nikola Stanisic2, Linn Hindrot1
1Department of Orofacial Pain and Jaw Function, Malmö University, Malmö, Sweden.
Repetitive testing significantly improves occlusal tactile acuity (OTA), suggesting learning and neuroplasticity. Maximum bite force did not impact OTA, but may cause short-term sensory changes.
Area of Science:
- Oral sensorimotor control
- Neuroscience
- Biomedical engineering
Background:
- Occlusal tactile acuity (OTA) and bite force are crucial for oral sensorimotor control.
- The impact of compressive bite force on OTA, mediated by periodontal ligament mechanoreceptors, remains unclear.
Purpose of the Study:
- To investigate the effects of repetition and maximum bite force on OTA.
- To determine if compressive force influences occlusal perception.
Main Methods:
- 36 healthy individuals performed tactile discrimination tasks using aluminum foils of varying thicknesses.
- Tests were repeated, with and without an interspersed maximum bite force task, in randomized order.
Main Results:
- Repeated measurements significantly enhanced OTA (p=0.033), particularly with 40 μm foil.
- Maximum bite force tests did not significantly affect OTA (p=0.097).
Conclusions:
- Enhanced OTA is likely due to repetition-mediated learning and neuroplasticity.
- Compressive bite force may induce transient, undetectable sensory changes or inhibit learning effects.
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