New ultrasonic tool may ease pain and swelling after wisdom tooth removal

This study tested whether using an ultrasonic surgical device (piezosurgery) instead of standard rotary tools reduces pain, swelling, and jaw stiffness after removing impacted wisdom teeth. Twenty-two healthy adults each had one tooth removed with the ultrasonic device and the other with standard tools. The researchers measured pain, swelling, and a saliva marker of inflammation. The goal was to see if the ultrasonic method leads to a smoother recovery.