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Quintessence Publishing: Journals: JOLA


The Journal of Oral Laser Applications

Edited by Prof Dr Andreas Moritz and Prof G. Lynn Powell

Official publication of the European Society for Oral Laser Applications

ISSN (print) 1473-7809 • ISSN (online) 1867-5611

Fall 2007
Volume 7 , Issue 3

Pages: 155-159
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Effects of Different Laser Devices on Oral Soft Tissues: In Vitro Experience

Romeo, Umberto / Del Vecchio, Alessandro / Ripari, Francesca / Palaia, Gaspare / Chiappafreddo, Celeste / Tenore, Gianluca / Visca, Paolo

Purpose: Using different lasers with various wavelengths, the main goal of the study was to evaluate the tissue damage in the first peripheral microns of oral soft-tissue specimens, the most important area for the evaluation of infiltrating potential of displastic lesions. Materials and Methods: Er,Cr:YSGG, Nd:YAG, and two diode lasers (808 nm and 980 nm) were tested, taking bioptic specimens from pig tongues. The results were compared with a scalpel specimen. All the samples were fixed in formaline, stained with hematoxylin-eosin, and examined with an optical microscope by two pathologists. Results: The 808 nm diode laser in pulsed mode and the Er,Cr:YSGG showed the best results, with less than 1 mm of marginal damage. Conclusion: The results of the study suggest that lasers can be even used in bioptic investigations of dysplastic lesions, extending the edges of the excision to assure a safe histological evaluation, which is fundamental for a correct histological diagnosis.

Keywords: biopsy, laser, peri-incisional damage

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