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Author:

Li, Qiurui (Li, Qiurui.) | Ji, Lingfei (Ji, Lingfei.) (Scholars:季凌飞) | Chen, Xiaochuan (Chen, Xiaochuan.) | Jiang, Yijian (Jiang, Yijian.) (Scholars:蒋毅坚)

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EI Scopus SCIE

Abstract:

In texturing dentin surface by KrF laser with the fluences of 200-800 mJ/cm(2), it is observed the irradiated surface topography has different characteristics with that irradiated under high fluence above 1000 mJ/cm(2) reported in previous studies. The formation threshold fluence of the microstructure consisted of erected microcylinders was determined at 400 mJ/cm(2). By scanning electron microscopy including fine examination of a single microstructure unit under high magnification, the microstructure formation and evolution tending to the fashion of high fluence were given. Analysis of the ablation details captured by high-speed photography confirmed the development mechanism of the texturing microstructure. Raman analysis showed the composition of the laser textured dentin underwent changes. Although the texturing is related to the characteristics of the dentin tissue, laser parameters play a decisive role in the controlling of the shape and the height of the three-dimensional microstructure. The combination of our work and the previous work by Sivakumar et al. [J. Laser Appl. 18(4), 330-333 (2006) and Lasers Med. Sci. 21, 160-164 (2006)] demonstrates laser fabrication of the three-dimensional microstructure with different topography features on dentin surface is controllable. (C) 2013 Laser Institute of America.

Keyword:

dentin three-dimensional microstructure laser ablation

Author Community:

  • [ 1 ] [Li, Qiurui]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Ji, Lingfei]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Chen, Xiaochuan]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Jiang, Yijian]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Li, Qiurui]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China

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Source :

JOURNAL OF LASER APPLICATIONS

ISSN: 1042-346X

Year: 2013

Issue: 4

Volume: 25

2 . 1 0 0

JCR@2022

ESI Discipline: ENGINEERING;

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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