Burly Thomas B. Tucker of Corpus Christi, Tex. is no braver than anybody else about going to the dentist. Recently, after many postponements, Patient Tucker lowered himself into the chair of Dentist Robert Beauregard Black and said: "I am so nervous you can't touch my teeth without novocaine."
Dr. Black took a look. Then, murmuring soothingly, he flicked a metal instrument that looked something like a small pneumatic drill past Mr. Tucker's suspicious eyes and went to work. But Mr. Tucker just relaxed. He felt no jarring, no pressure, no buzzing. Few, if any, of Dr. Black's fingers were in his mouth...