SMART TOOTH SYSTEM FOR IN-SITU WIRELESS PH MONITORING
- Authors
- Islam, Sayemul; Hwang, Geelsu; Song, Seung Hyun; Kim, Albert
- Issue Date
- Jun-2021
- Publisher
- IEEE
- Keywords
- Dental; pH sensing; hydrogel; piezoelectric; bio-telemetry; LC transponder; wireless healthcare monitoring
- Citation
- 2021 21ST INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS), pp 755 - 758
- Pages
- 4
- Journal Title
- 2021 21ST INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS)
- Start Page
- 755
- End Page
- 758
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/146593
- DOI
- 10.1109/TRANSDUCERS50396.2021.9495706
- ISSN
- 2167-0013
2167-0021
- Abstract
- In this paper, we introduce an oral motion-powered Smart Tooth system that can monitor oral health. Lower pH is an indicator of bacterial accumulation in the oral cavity, which can cause tooth decay, periodontal or peri-implant diseases. Thus, in situ monitoring pH inside of the mouth is critical to prevent oral diseases. Using a piezoelectric dental crown, Smart Tooth system converts oral motions, such as chewing, to electrical power which can impinge a surface integrated LC transponder. The LC transponder also incorporates iron oxide nanoparticles-embedded pH sensitive hydrogel that modulates the resonant frequency via shrinking or swelling. As a proof of concept, the fabricated prototype measures pH levels ranging from pH 4 to 12 and sends data wirelessly to the receiver placed up to 5 cm away (wireless transmission path loss at 3 cm was 50.79 dB). The results indicate that the Smart Tooth system can monitor oral health while replacing missing teeth.
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