I had a sensitive tooth on the left upper side of* my mouth. The dentist used a device to test if the tooth’s nerve was still viable. She touched my tooth with a probe from the device. Once the probe was in contact with my tooth, the device started GIVING OFF** electric currents. The higher the reading is before I feel pain, the less viable my tooth is.
*Should I say ‘in my mouth’ or ‘of my mouth’?
** Does ‘give off’ make sense here? How would you say this in casual conversations?
Thank you and good morning. :)