A- Upper and lower acetate trays with the microsensor attached to the buccal surface; B- Reading station for transferring data to the software
tooth
CAVITY
This microsensor is able to measure the temperature of the oral cavity every 15 minutes with a +/- 0.1º Celsius accuracy.Dental bleaching was performed using 10% carbamide peroxide gel (Opalescense PF, Ultradent Products Inc., South Jordan, UT, USA). Patients were instructed to insert a small drop of bleaching gel on the buccal impression of each tooth on both trays (upper and lower), from the right second premolar to the left second premolar. Patients were instructed to keep the trays on for 2, 4, or 8 hours/day (corresponding to groups G2, G4, and G8, respectively). They were instructed on how and for how long to use the trays by a researcher that was not involved in the implementation and evaluation processes. The dental bleaching technique was performed for 21 consecutive days. Each volunteer’s usage time was obtained and analyzed at the end of the bleaching treatment.