A noninvasive, hand-held, manual device intended to be used during an eye examination to determine objective and subjective convergence points, examine accommodation, and determine the master eye. Often called a Royal Air Force (RAF) convergence rule or RAF...
A prefabricated prosthetic device designed to function as a permanent artificial covering to partially or fully replace the damaged crown of a tooth. It is made of ceramic and polymer materials and may require minimal fashioning in situ during restorative w...
An multicomponent assembly of electrically-powered devices designed to locate a nerve by applying an electrical stimulus with a probe and observing muscle responses. Once the pathways are located, their transmission capabilities can be assessed by comparing...