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Alteration of Mastication Force via Intraoral Closed-loop Electrical Stimulation
Summary
Electrical stimulation of the nerves involved in chewing can enhance masticatory force. This tactile augmentation technique shows promise for improving chewing function in individuals with declining mastication abilities.
Area of Science:
- Biomedical Engineering
- Neuroscience
- Oral Physiology
Background:
- Mastication is crucial for digestion and nutrient absorption.
- Declining mastication function impacts health and quality of life.
- Regulating masticatory force is significant for maintaining oral health.
Purpose of the Study:
- To investigate the effect of tactile augmentation on masticatory force.
- To determine if closed-loop electrical stimulation can increase chewing force.
- To explore changes in other mastication parameters due to electrical stimulation.
Main Methods:
- An intraoral tooth-borne electronic system was used to deliver closed-loop electrical stimulation.
- Six healthy human subjects masticated soft and hard foods with and without stimulation.
- Mastication forces and other parameters were recorded to analyze the effects.
Main Results:
- Masticatory force was higher when chewing harder foods.
- Electrical stimulation significantly increased masticatory force compared to the non-stimulated condition.
- Electrical stimulation also altered mastication period, spike width, and duty cycle, with a notable aftereffect.
Conclusions:
- Tactile augmentation via intraoral electrical stimulation effectively increases masticatory force.
- This technique shows potential for therapeutic applications in individuals with impaired chewing.
- Further research is warranted to explore the long-term effects and clinical utility of this approach.
