Long-term, continual, wireless, intraoral monitor

A system for continually monitoring pH in an oral cavity of a subject, comprising:

• a wearable intraoral sensor installable on a molar in the oral cavity of the subject, comprising
• a molar band sized to fit around the molar of the subject, the molar band configured to extend between surrounding teeth of the molar to encircle the molar;
• a sensor unit coupled to the molar band, comprising
• a transducer configured to continually measure pH in the oral cavity for at least one day, generate pH measurement data, and transduce the pH measurement data to a signal suitable for transmission;
• a data transmission unit operably connected to the transducer and configured to wirelessly transmit the signal comprising pH measurement data;
• and
• a power source operably coupled to the transducer and the data transmission unit;
• a housing unit coupled to the molar band and configured to enclose and seal the sensor unit inside the housing unit, the housing unit comprising a transducer enclosure, the transducer enclosure configured to enclose at least a portion of the transducer, and comprising a proton exchange membrane, the proton exchange membrane configured to conduct protons into the sensor unit, wherein the transducer enclosure further comprises:
• a molar-side wall, wherein the molar-side wall is impermeable;
• a buccal-side wall, the buccal-side wall disposed opposite the molar-side wall;
• wherein the molar-side wall is coextensive with the molar band, the molar-side wall configured to abut a molar in the oral cavity of the subject;
• and wherein the buccal-side wall comprises the proton exchange membrane;
• and
• a receiving device external to the oral cavity of the subject and configured to receive the pH measurement data wirelessly transmitted from the wearable intraoral sensor.