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Proceedings Paper

Laser ablation of hard tissue: correlation between the laser beam parameters and the post-ablative tissue characteristics
Author(s): Alexandros A. Serafetinides; Mersini I. Makropoulou; Maruan Khabbaz
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Paper Abstract

Hard dental tissue laser applications, such as preventive treatment, laser diagnosis of caries, laser etching of enamel, laser decay removal and cavity preparation, and more recently use of the laser light to enlarge the root canal during the endodontic therapy, have been investigated for in vitro and in vivo applications. Post-ablative surface characteristics, e.g. degree of charring, cracks and other surface deformation, can be evaluated using scanning electron microscopy. The experimental data are discussed in relevance with the laser beam characteristics, e.g. pulse duration, beam profile, and the beam delivery systems employed. Techniques based on the laser illumination of the dental tissues and the subsequent evaluation of the scattered fluorescent light will be a valuable tool in early diagnosis of tooth diseases, as carious dentin or enamel. The laser induced autofluorescence signal of healthy dentin is much stronger than that of the carious dentin. However, a better understanding of the transmission patterns of laser light in teeth, for both diagnosis and therapy is needed, before the laser procedures can be used in a clinical environment.

Paper Details

Date Published: 4 November 2003
PDF: 9 pages
Proc. SPIE 5226, 12th International School on Quantum Electronics: Laser Physics and Applications, (4 November 2003); doi: 10.1117/12.519581
Show Author Affiliations
Alexandros A. Serafetinides, National Technical Univ. of Athens (Greece)
Mersini I. Makropoulou, National Technical Univ. of Athens (Greece)
Maruan Khabbaz, Univ. of Athens (Greece)

Published in SPIE Proceedings Vol. 5226:
12th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Alexander A. Serafetinides; Ivan N. Kolev, Editor(s)

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