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Dentin mid-infrared laser ablation at various lasing parameters

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dc.contributor.author Papadopoulos, DN en
dc.contributor.author Papagiakoumou, E en
dc.contributor.author Makropoulou, M en
dc.contributor.author Khabbaz, MG en
dc.contributor.author Serafetinides, AA en
dc.date.accessioned 2014-03-01T02:50:02Z
dc.date.available 2014-03-01T02:50:02Z
dc.date.issued 2005 en
dc.identifier.issn 16057422 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/34877
dc.subject Dentin ablation en
dc.subject End-sealing caps en
dc.subject Er:YAG en
dc.subject HF laser en
dc.subject Mid IR waveguides en
dc.subject.other Attenuation en
dc.subject.other Blood en
dc.subject.other Infrared radiation en
dc.subject.other Lasers en
dc.subject.other Medical imaging en
dc.subject.other Pathology en
dc.subject.other Photoacoustic effect en
dc.subject.other Tissue en
dc.subject.other Ultrasonics en
dc.subject.other Dentin ablation en
dc.subject.other End-sealing caps en
dc.subject.other Er:YAG en
dc.subject.other HF lasers en
dc.subject.other Mid IR wavelength en
dc.subject.other Laser ablation en
dc.title Dentin mid-infrared laser ablation at various lasing parameters en
heal.type conferenceItem en
heal.identifier.primary 10.1117/12.573835 en
heal.identifier.secondary http://dx.doi.org/10.1117/12.573835 en
heal.identifier.secondary 135 en
heal.publicationDate 2005 en
heal.abstract In this study a frustrated total internal reflection (FTIR) Q-switched and free-running Er:YAG laser, as well as a novel design transversally excited atmospheric pressure (TEA) oscillator-double amplifier corona preionised high beam quality Hydrogen-Fluoride (HF) laser system, all developed in our lab, were used in dentin ablation experiments. In the case of the Er:YAG laser, pulses of 190 ns in Q-switched operation and of 80 μs pulse width in free-running operation at 2.94 μm were used, while HF laser pulses of 39 ns in the wavelength range of 2.6-3.1 μm in a predominantly TEM00 beam were also used to interact in vitro with dentin tissue. Several samples of freshly extracted human teeth were used, cut longitudinally in facets of 0.4-1.5 mm thick. Ablation experiments were conducted with the laser beam directly focused on the tissue or after being waveguided through suitable mid-IR fiber/waveguide alternatively ended with quartz end-sealing caps. The correlation between the various laser beam parameters, as wavelength, pulse duration, repetition rate, energy and spatial distribution of the beam profile and the ablative characteristics (ablation rates, tissue surface morphology) of dentin surface were investigated. en
heal.journalName Progress in Biomedical Optics and Imaging - Proceedings of SPIE en
dc.identifier.doi 10.1117/12.573835 en
dc.identifier.volume 5630 II en
dc.identifier.spage 675 en
dc.identifier.epage 683 en


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