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Wettability of dentin after Yb:KYW thin-disk femtosecond ablation
Liu, Jing1,2,3,4; Lu, Peijun1,2,3,4; Sun, Yuchun1,2,3,4; Wang, Yong1,2,3,4
关键词Femtosecond laser Dentin Wettability Contact angle
刊名LASERS IN MEDICAL SCIENCE
2015-08-01
DOI10.1007/s10103-014-1655-8
30期:6页:1689-1693
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Engineering, Biomedical ; Surgery
研究领域[WOS]Engineering ; Surgery
关键词[WOS]LASER-ABLATION ; SURFACE-ROUGHNESS ; ENAMEL ; ADHESION ; PULSES ; LIGHT
英文摘要

The aim of this study was to quantitatively evaluate the wettability of dentin after Yb:KYW thin-disk femtosecond-pulsed laser ablation by measuring the contact angle. Different laser parameters were used including different fluences (F), scanning speeds, and scanning line spacings. Crowns of 15 extracted human teeth were cut longitudinally into slices approximately 1.5-mm thick with a cutting instrument. The samples were randomly divided into ten groups (n = 3/group). Samples in groups 1-8 were irradiated with a femtosecond-pulsed laser. The dentin samples were fixed on a stage at the focal plane, and the laser beam irradiated the samples through a galvanometric scanning system so rectangular movement could be achieved. Samples in groups 9 and 10 were prepared with grinding instruments. Following ablation and preparation, the samples were examined for contact angle with an optical contact angle measuring instrument. The results showed that scanning speed and scanning line spacing had little influence on the wettability of dentin following femtosecond-pulsed laser ablation, except when F = 6 J/cm(2). For six out of the eight laser ablation groups, when a lower fluence was used, the dentin contact angle was higher and vice versa. Most of the dentin which had been ablated using the femtosecond-pulsed laser had improved wettability compared to samples prepared with the grinding instruments. This study showed that various laser fluences, scanning speeds, and scanning line spacings can alter dentin wettability. Therefore, adequate parameters should be chosen to achieve proper therapeutic benefits.

语种英语
WOS记录号WOS:000359138500008
项目编号2012BAI07B04
资助机构National Science &amp ; Technology Pillar Program during the 12th Five-Year Plan
引用统计
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/67874
专题北京大学口腔医学院
作者单位1.Peking Univ, Ctr Digital Dent, Sch & Hosp Stomatol, Beijing 100081, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Fac 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
Liu, Jing,Lu, Peijun,Sun, Yuchun,et al. Wettability of dentin after Yb:KYW thin-disk femtosecond ablation[J]. LASERS IN MEDICAL SCIENCE,2015,30(6):1689-1693.
APA Liu, Jing,Lu, Peijun,Sun, Yuchun,&Wang, Yong.(2015).Wettability of dentin after Yb:KYW thin-disk femtosecond ablation.LASERS IN MEDICAL SCIENCE,30(6),1689-1693.
MLA Liu, Jing,et al."Wettability of dentin after Yb:KYW thin-disk femtosecond ablation".LASERS IN MEDICAL SCIENCE 30.6(2015):1689-1693.
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