SEM investigations of the cementum surface after irradiation with a frequency-doubled alexandrite laser

Peter Rechmann D.D.S.; Thomas Hennig

doi:10.1117/12.238766

23 April 1996 SEM investigations of the cementum surface after irradiation with a frequency-doubled Alexandrite laser

Peter Rechmann D.D.S., Thomas Hennig

Proceedings Volume 2672, Lasers in Dentistry II; (1996) https://doi.org/10.1117/12.238766
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

During prior studies it could be demonstrated while engaging a frequency doubled Alexandrite-laser (wavelength 380 nm, pulse duration 100 ns, fluence 1 J/cm², pulse repetition rate 110 Hz) a fast and strictly selective ablation of supra- and subgingival calculus is possible. Even the removal of unstained microbial plaque was observed. First conclusions were drawn after light microscopical investigations on undecalcified sections of irradiated teeth. In the present study the cementum surface after irradiation with a frequency doubled Alexandrite-laser was observed by means of a Scanning Electron Microscope. After irradiation sections of teeth were dried in alcohol and sputtered with gold. In comparison irradiated cementum surfaces of unerupted operatively removed wisdom teeth and tooth surfaces after the selective removal of calculus were investigated. A complete removal of calculus was observed as well as a remaining smooth surface of irradiated cementum.

Citation Download Citation

Peter Rechmann D.D.S. and Thomas Hennig "SEM investigations of the cementum surface after irradiation with a frequency-doubled Alexandrite laser", Proc. SPIE 2672, Lasers in Dentistry II, (23 April 1996); https://doi.org/10.1117/12.238766

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