The researchers delivered short electrical pulses to either the upper left canine tooth (the pointy one) or the lower left canine tooth in the subjects.
科研人员给上颚的左犬齿（比较尖的那颗）或者是下颚的左犬齿注射一个短的电脉冲。
2
Among his first efforts in this area was "Tommy Tucker's Tooth" (1922), a short combining live action and animation made on assignment for a local dentist.
"BE what?"Month Luo the Cha tooth Yang Yang the ground is malicious to stare at to stop short the language intentionally tease them not of thousand rather minister.