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学科主题口腔医学
Surface roughness and wettability of dentin ablated with ultrashort pulsed laser
Sun, Yuchun1,2,3,4; Liu, Jing1,2,3,4; Lu, Peijun1,2,3,4; Wang, Yong1,2,3,4
关键词Ultrashort Pulsed Laser Dentin Surface Roughness Wettability
刊名JOURNAL OF BIOMEDICAL OPTICS
2015-05-01
DOI10.1117/1.JBO.20.5.055006
20期:5
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Biochemical Research Methods ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]Biochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]ER-YAG LASER ; SCANNING ELECTRON-MICROSCOPY ; FEMTOSECOND LASERS ; HARD SUBSTANCES ; ENAMEL ; EFFICIENCY ; RETENTION ; ADHESION ; SYSTEM ; CROWNS
英文摘要

The aim of this study was to evaluate the surface roughness and wettability of dentin following ultrashort pulsed laser ablation with different levels of fluence and pulse overlap (PO). Twenty-five extracted human teeth crowns were cut longitudinally into slices of approximately 1.5-mm thick and randomly divided into nine groups of five. Samples in groups 1 to 8 were ablated with an ultrashort pulsed laser through a galvanometric scanning system. Samples in group 9 were prepared using a mechanical rotary instrument. The surface roughness of samples from each group was then measured using a three-dimensional profile measurement laser microscope, and wettability was evaluated by measuring the contact angle of a drop of water on the prepared dentin surface using an optical contact angle measuring device. The results showed that both laser fluence and PO had an effect on dentin surface roughness. Specifically, a higher PO decreased dentin surface roughness and reduced the effect of high-laser fluence on decreasing the surface roughness in some groups. Furthermore, all ablated dentin showed a contact angle of approximately 0 deg, meaning that laser ablation significantly improved wettability. Adjustment of ultrashort pulsed laser parameters can, therefore, significantly alter dentin surface roughness and wettability. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)

语种英语
WOS记录号WOS:000356241900054
项目编号2012BAI07B04
资助机构National Science and Technology Pillar Program
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/50306
专题北京大学口腔医学院
作者单位1.Peking Univ, Sch & Hosp Stomatol, Ctr Digital Dent, Beijing 100081, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Dept Prosthodont, Beijing 100081, Peoples R China
3.Natl Engn Lab Digital & Mat Technol Stomatol, Beijing 100081, Peoples R China
4.Minist Hlth, Res Ctr Engn & Technol Digital Dent, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Sun, Yuchun,Liu, Jing,Lu, Peijun,et al. Surface roughness and wettability of dentin ablated with ultrashort pulsed laser[J]. JOURNAL OF BIOMEDICAL OPTICS,2015,20(5).
APA Sun, Yuchun,Liu, Jing,Lu, Peijun,&Wang, Yong.(2015).Surface roughness and wettability of dentin ablated with ultrashort pulsed laser.JOURNAL OF BIOMEDICAL OPTICS,20(5).
MLA Sun, Yuchun,et al."Surface roughness and wettability of dentin ablated with ultrashort pulsed laser".JOURNAL OF BIOMEDICAL OPTICS 20.5(2015).
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