Golden Valley Development Inc. announced the appointment of John Powers, Ph. D., to its recently-formed Advisory Board. Dr. Powers has been involved in the development of the PercuGuard(TM) needlestick prevention device and will be instrumental in ensuring the device's successful near-term introduction into broad dental and medical use in applications where superior protection from exposure to blood borne pathogens is a critical need. Powers, an internationally respected dental materials scientist, holds multiple professorships at renowned dental schools in Texas, Michigan, and Germany.