PMID: 18717173Aug 23, 2008Paper

Effect of pulse duration of Er: YAG laser on dentin ablation

Dental Materials Journal
Yuki NishimotoJunji Tagami

Abstract

The present study examined the effects on dentin ablation efficiency arising from various pulse durations of Er: YAG laser at a fixed energy fluence. Ten flat human dentin disks were prepared and exposed to an Er: YAG laser at 1 pps for three seconds at pulse durations of 100-500 microsec with 150 mJ/pulse (40.0 J/cm x pulse). The depth and diameter of the ablated dentin were measured and the ablation volume was estimated. Irradiated surfaces and cross-sections were observed using a SEM. Depth of the removed dentin increased and the diameter of the spot decreased without a change in the estimated volume at increased pulse durations. SEM observation of the irradiated surfaces revealed that there were no morphological differences when the pulse duration was changed. When the specimens were cross-sectioned, the ablated dentin had a dome shape and there was a dark layer under the irradiated surface.

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Citations

Mar 20, 2012·Photomedicine and Laser Surgery·Anja BarabaIvana Miletić
Apr 17, 2013·Photomedicine and Laser Surgery·Tolga TopcuogluN Eren Isman
May 26, 2012·Australian Dental Journal·F ShiraniS Khazaei
Apr 9, 2016·Photomedicine and Laser Surgery·Anja BarabaIvana Miletic
Apr 2, 2015·Microscopy Research and Technique·Lívia Tosi TrevelinAdriana Bona Matos
Jun 23, 2016·Journal of Lasers in Medical Sciences·Horieh MoosaviFarzaneh Ahrari
Jul 12, 2017·Lasers in Medical Science·Q T LeC Bertrand
Dec 8, 2016·Journal of Biomedical Optics·Gregory AltshulerValery Tuchin
Jun 23, 2016·Journal of Biomedical Optics·Quang-Tri LeRui Vilar

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