Richard H. Paschke, BS, MS, is an ultrasonic consultant and president of PCG Inc with more than 35 years’ experience designing and developing ultrasonic medical and dental products for several leading dental companies. He holds over 10 patents in the ultrasonic field and is an active member of the American Institute of Ultrasound in Medicine, Acoustic Society of America, and the International Electrical Commission. Paschke can be reached at pcg_inc@comcast.net.