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Evaluation of Er,Cr:YSGG laser for hard tissue
ablation: an in vitro study |
| Xianzeng ZHANG1,Shusen XIE1,Zhenlin ZHAN1,Haibin ZHAO1,Jian GUO1,Qing YE2, |
| 1.Institute of Laser and
Optoelectronics Technology, Fujian Provincial Key Laboratory for Photonics
Technology, Key Laboratory of OptoElectronic Science and Technology
for Medicine of Ministry of Education, Fujian Normal University, Fuzhou
350007, China; 2.Department of Otolaryngology,
Fujian Provincial Hospital, Fuzhou 350001, China；Fujian Provincial Clinical
College, Fujian Medical University, Fuzhou 350001, China; |
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Abstract The use of erbium,chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser with a wavelength of 2.78μm for hard bone tissue ablation was evaluated. The surface morphology and microstructure changes of bone tissue treated with Er,Cr:YSGG were analyzed as compared to those treated with diamond drill. The influence of fluence on ablation rate and ablation efficiency as well as microstructure was also examined. The results show that Er,Cr:YSGG laser can perform bone perforation that is more fine and presented a lot of unique advantages compared to traditional methods. An approximately linear relationship was observed between the ablation rate/ablation efficiency and radiant exposure. Increasing the radiant exposure irradiated on bone tissue will produce stronger thermal injury around the crater and result in microstructure changing.
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Issue Date: 05 June 2010
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