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Published on: February 2, 2018
Development and in-vitro validation of an intraoral wearable biofeedback system for bruxism management
Khalid A Al-Hamad1, Ashwaq Asiri2, Ali M Al-Qahtani3
1Department of Maxillofacial and Diagnostic Sciences, College of Dentistry, Majmaah University, Majmaah, Saudi Arabia.
Introduction:
Bruxism remains a diagnostic challenge, with no consistently reliable clinical approaches available to document the condition with satisfactory accuracy. This study aimed to incorporate a biosensor device into a conventional bite-night guard to detect bruxism in an in vitro setting.
Methods:
A sandwich-layering process was used to integrate stress and vibration sensors into an acrylic occlusal stabilization splint. The system included a microcontroller, control unit, and data acquisition module. Occlusal force signals were processed using artificial intelligence-based algorithms. A total of 200 repeated trials were conducted to evaluate system performance. Accuracy, sensitivity, and specificity were calculated as validation metrics.
Results:
The biosensor prototype demonstrated reliable performance across a force range of 274-700 N. Quantitative evaluation of the neural network yielded an accuracy of 91%, sensitivity of 88%, and specificity of 90% in distinguishing occlusal force thresholds.
Conclusion:
The findings confirm the feasibility of integrating biosensors within an intraoral appliance for bruxism detection in vitro. Future research should explore long-term durability testing in moist environments and conduct in vivo trials to validate clinical performance.
