Femtosecond-pulse laser ablation of dental hydroxyapatite and single-crystalline fluoroapatite

被引：69
作者：
Krüger, J
Kautek, W
Newesely, H
机构：
[1] Bundesanstalt Mat Forsch & Prufung, Lab Dunnschichttechnol, D-12205 Berlin, Germany
[2] Free Univ Berlin, Inst Klin Theoret Zahn Mund & Kieferheilkund, D-14197 Berlin, Germany
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1999年 / 69卷
关键词：
D O I：
10.1007/s003390051426
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Laser microdrilling of healthy human enamel and dentine using 300 fs pulses at a wavelength of 615 nm and 3 Hz repetition rate leads to an enhanced structuring quality in comparison with nanosecond-laser results. Microcracking and damage to neighboring tissue can be reduced. Ablation threshold fluences for 100 laser pulses of 0.3 J cm(-2) (human dentine), 0.6 J cm(-2) (human enamel) and 0.8 J cm(-2) (single crystalline fluoroapatite) could be determined. Ablation depths per pulse below 1 mu m were observed.
引用
收藏
页码：S403 / S407
页数：5
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