The human mouth holds a wealth of information about overall health. From body temperature to head and jaw movements during sleep, this data can be essential for understanding health conditions and dental issues. However, collecting such data is often cumbersome and uncomfortable. Researchers from TU Delft, in collaboration with Radboudumc, have developed a groundbreaking new technology: Densor, a battery-free sensor platform that can be worn in the mouth via a standard dental brace or a “bite splint.” This innovative open-source technology enables safe and user-friendly long-term oral measurements. Uniquely, it requires no additional hardware—just a smartphone for charging and data reading.
Przemysław Pawełczak, Associate Professor of Embedded Systems at TU Delft: 'Densor is more than just a technological innovation; it is a step toward accessible and inclusive health monitoring. By making the design open source—both hardware and software—we aim to enable experts in fields such as dentistry and sleep research worldwide to apply this technology in a variety of ways.'
Versatile Applications and New Insights
The technology has the potential to support a wide range of applications, including sleep research, diagnosis of apnea and dental wear, and monitoring treatment adherence. Densor not only allows for precise measurement of jaw and head movements but also differentiates between speaking, swallowing, and drinking. This makes it more accurate and user-friendly than traditional methods, such as ear-worn accelerometers.
The researchers are currently working on expanding the platform with additional sensors and integrated data processing, unlocking even more possibilities. Future developments include detecting acid reflux and monitoring saliva production. The team is also focusing on enabling faster and more extended measurements, making the platform applicable across various disciplines.
Bas Loomans, dentist and Professor of Oral Function and Restorative Dentistry at Radboudumc: 'The ability to collect real-time, long-term data in the mouth with a user-friendly device is truly innovative. It opens doors to new preventive and diagnostic possibilities in areas such as nutrition, dental wear, or acid reflux issues.'
Watch the video about this new technology here.
About the publication
The user study was published in Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies.
For questions and information:
Przemysław Pawełczak, p.pawelczak@tudelft.nl / +31 614 23 80 42
Fien Bosman, press officer TU Delft Health, f.j.bosman@tudelft.nl +31 6 24 95 37 33
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