[Lasers in dentistry with special reference to internal temperature in the pulp cavity using the excimer laser with 248 nm of different frequencies].
The purpose of the present study was to examine the heat building up in the pulp cavity during superficial laser preparation, to examine the tooth surface structure at the area treated by laser and to assess the possible duration of treatment on the basis of the rate of tissue removal. Following laser application, a scanning electron microscopic examination of the tooth surface revealed a smooth structure without cracks or fissures. Although the KrF excimer laser (lambda = 248 nm) proved to be applicable in dentistry with regard to its physical properties, several reasons speak against applying it in clinical practice yet. Treatment, for example, would take too much time as sufficiant enamel may only be removed at a high frequency. Moreover, the question of a possible mutagenicity of the excimer laser with a wave-length of 248 nm has not been answered satisfactorily yet.
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Abteilung für zahnärztliche Chirurgie, Universitätsklinik für Zahn-, Mund- und Kieferheilkunde, Wien.
D001833:Body Temperature Regulation / Q000502:physiology*; D003737:Dental Cavity Preparation / Q000295:instrumentation*; D003786:Dental Pulp Cavity / Q000503:physiopathology*; D006801:Humans; D007834:Lasers; D008855:Microscopy, Electron, Scanning
Laser in der Zahnheilkunde unter besonderer Berücksichtigung der stationären Temperatur im Pulpenkavum bei Beschuss mit dem Excimerlaser bei 248 nm bei unterschiedlichen Frequenzen.