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Lookup NU author(s): Dr Sharanbir Sidhu, Professor John McCabe
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The aim of this work was to determine the optimal power setting of an Er,Cr:YSGG laser for cutting human dentine to produce a surface that remains suitable as a foundation on which to build and bond a dental restoration. The cutting efficiency and resulting microhardness of the dentine were evaluated for various laser power settings, and representative samples were examined by SEM. The microhardness of the dentine was significantly reduced by 30-50% (p < 0.05, paired t test) after laser irradiation, irrespective of the power setting used. The mean ablation efficiency increased in proportion to the power setting of the laser. Although the laser power setting did not affect the extent of reduction in microhardness, it did affect the microstructure of human dentine. © 2007 Springer-Verlag London Limited.
Author(s): Ekworapoj P, Sidhu SK, McCabe JF
Publication type: Article
Publication status: Published
Journal: Lasers in Medical Science
Year: 2007
Volume: 22
Issue: 3
Pages: 175-182
ISSN (print): 0268-8921
ISSN (electronic): 1435-604X
Publisher: Springer UK
URL: http://dx.doi.org/10.1007/s10103-006-0426-6
DOI: 10.1007/s10103-006-0426-6
PubMed id: 17242868
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