A dental laser system is disclosed having an erbium doped YAG laser which is excited so that the YAG laser produces a plurality of laser pulses. A novel delivery system for the YAG laser is disclosed which includes an elongated sapphire strand which consists of a single crystal. The sapphire strand has...http://www.google.se/patents/US5310344?utm_source=gb-gplus-sharePatent US5310344 - Dental laser system