[Usefulness of Excimer lasers in dentistry]

In vitro investigation on the influence of 308 nm excimerlaserradiation on extracted human teeth. Depending on the distance of the area of radiation to the pulp the temperaturerise ranged from 3.5 degrees C (6 mm) to 18.2 degrees C (less than 0.5 mm). REM investigations of radiated surfaces indicate a good retention of filling materials. TEM investigations of radiated dental hard tissues demonstrated that there is no structural change of the ultrastructure below the radiated surface.