One of the screening tools that I use when evaluating TMJ Health is Doppler Auscultation.
The use of a Doppler in dentistry was developed in the 1980’s by Dr. Mark Piper and is used to help dentists determine if the patient’s TM joints sound normal. The doppler is basically a stethoscope with a microphone that projects the sounds from within the joint. I tell my patients that the doppler is a stethoscope, like what their MD would use to listen to their breathing or their heart, but with a speaker so that we can all hear the sounds. When the doppler is positioned appropriately, the dentist, and the patient, can listen to the sounds from within the joint space when the patient moves their jaw.