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Proceedings Paper

CO2 laser biopsies of oral mucosa: an immunocytological and histological comparative study
Author(s): Marina Consuelo Vitale; Annibale Renzo Botticelli; Davide Zaffe; Alessandra Martignone; Aurelia Cisternino; Franco Vezzoni; Francesco Scarpelli
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Paper Abstract

The relationship between bioptic technique and tissue preservation has been studied in 18 oral biopsies of young patients obtained by electro surgery or CO2 laser surgery. Biopsies were formalin fixed, paraffin embedded and histologically, histochemically and immunocytochemically treated. All the biopsies show inflammatory cell infiltration, epithelial spongiosis, trichocariosis, supra basal small blisters, and epithelial clefts with lamina detaching from the corium. Histochemistry shows both the presence of edema and acid mucopolysaccharides inside the corium, and variable glycogen content in epithelial cells. Trichocariotic cells show a positive MiB1/Ki67 expression, when they are present. Nevertheless, laser biopsies show a lower amount of basophilic fibrous tissue and of bc12 bodies detection, connected with a higher amount of glycogen, Cytokeratin and MiB1/Ki67 expression in epithelial cells, compared to bovie biopsies. The result show a higher degree of damages in particular at the epithelial level, in electro surgery biopsies rather than laser biopsies. The best epithelial and corium preservation showed by laser biopsies suggest a chance of reversible condition, which can lead to a complete recovery due to its higher capability of restoring tissues.

Paper Details

Date Published: 27 April 2001
PDF: 6 pages
Proc. SPIE 4249, Lasers in Dentistry VII, (27 April 2001); doi: 10.1117/12.424491
Show Author Affiliations
Marina Consuelo Vitale, Univ. of Pavia (Italy)
Annibale Renzo Botticelli, Univ. of Pavia (Italy)
Davide Zaffe, Univ. of Modena and Reggio Emilia (Italy)
Alessandra Martignone, Univ. of Pavia (Italy)
Aurelia Cisternino, Univ. of Pavia (Italy)
Franco Vezzoni, Univ. of Pavia (Italy)
Francesco Scarpelli, Consultant (Italy)


Published in SPIE Proceedings Vol. 4249:
Lasers in Dentistry VII
Peter Rechmann; Daniel Fried; Thomas Hennig, Editor(s)

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