Demonstration of BIOral: Fabricating Intraoral pH Sensor for Continuous Health Monitoring

TY - ABST

T1 - Demonstration of BIOral

T2 - CHI '25: CHI Conference on Human Factors in Computing Systems

AU - Jiang, Yijing

AU - Jin, Junzhe

AU - Song, Yunhui

AU - Xu, Haiyang

AU - Wessely, Michael

PY - 2025/4/26

Y1 - 2025/4/26

N2 - Oral pH is a key health indicator, playing a vital role in enamel protection and reflecting systemic conditions. However, existing devices for detecting pH are either one-time tests or require additional extraoral equipment, which fails to capture the dynamic changes in oral pH. This paper introduces BIOral, a novel system that integrates pH-sensitive hydrogel with dental braces for continuous oral pH monitoring. BIOral combines biocompatible dental braces, edible colorimetric hydrogel, and a digital color sensor to monitor salivary pH levels, offering a new approach to personalized oral care management. We present the fabrication process of BIOral and a preliminary technical evaluation to assess the system’s performance, reaction time and detection range. We envision BIOral as a cost-effective solution for daily use, and could advance preventive healthcare and facilitate early intervention.

AB - Oral pH is a key health indicator, playing a vital role in enamel protection and reflecting systemic conditions. However, existing devices for detecting pH are either one-time tests or require additional extraoral equipment, which fails to capture the dynamic changes in oral pH. This paper introduces BIOral, a novel system that integrates pH-sensitive hydrogel with dental braces for continuous oral pH monitoring. BIOral combines biocompatible dental braces, edible colorimetric hydrogel, and a digital color sensor to monitor salivary pH levels, offering a new approach to personalized oral care management. We present the fabrication process of BIOral and a preliminary technical evaluation to assess the system’s performance, reaction time and detection range. We envision BIOral as a cost-effective solution for daily use, and could advance preventive healthcare and facilitate early intervention.

KW - Biosensing

KW - Oral Interface

KW - Wearable Computing

KW - Fabrication

UR - https://www.scopus.com/pages/publications/105005772249

U2 - 10.1145/3706599.3721178

DO - 10.1145/3706599.3721178

M3 - Conference abstract in proceedings

BT - CHI EA 2025 - Extended Abstracts of the 2025 CHI Conference on Human Factors in Computing Systems

PB - Association for Computing Machinery

Y2 - 26 April 2025 through 1 May 2025

ER -