[Basic considerations on the use of the Excimer laser in dentistry].
SEM studies showed that irradiation in the energy density range of 4-6 J/cm2 resulted in the removal of hard tooth structure without causing thermal alterations of the tissues. In this process (photoablation) the natural structures of the tissues are "exposed". The surface structure thus produced in dentin depends on whether the dentin tubules are hit transversally or longitudinally and varies accordingly. The surface structure of enamel, as well, is determined by the alignment of the prisms. When the laser beam was optimally adjusted (energy densities of 4-6 J/cm2 and peripheral fading), no structural changes could be demonstrated in the depth of the tissue.
Liesenhoff
T
T
Abteilung für Mikromorphologie, Freie Universität Berlin.
Bende
T
T
Lenz
H
H
Seiler
T
T
D003737:Dental Cavity Preparation / Q000379:methods*; D003743:Dental Enamel / Q000648:ultrastructure; D003804:Dentin / Q000648:ultrastructure; D006801:Humans; D053685:Laser Therapy; D008855:Microscopy, Electron, Scanning
Grundlagen zur Anwendung des Excimer-Lasers in der Zahnheilkunde.