Dentistry:
When the Federal Food and Drug Administration allowed Premier Laser Systems Inc. in Irvine, Calif., to market the first laser for hard-tissue applications last year, many in the industry hailed it as a monumental advance. Problems soon surfaced with the lifetime of the optical fiber light-delivery system, and acceptance has been slow. In addition, researchers have been refining a rival technique called micro air abrasion, which costs less than laser technology. Dentists express fewer...
Photonics Spectra, August 1998