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IR@PKUHSC  > 北京大学口腔医学院  > 儿童口腔科  > 期刊论文
学科主题: 口腔医学
题名:
Scanning electron microscopy study of cavity preparation in deciduous teeth using the Er:YAG laser with different powers
作者: Zhang, Sun1; Chen, Tao2; Ge, Li-hong1
关键词: Er:YAG laser ; Deciduous teeth ; Dentin ; Scanning electron microscopy
刊名: LASERS IN MEDICAL SCIENCE
发表日期: 2012
DOI: 10.1007/s10103-010-0854-1
卷: 27, 期:1, 页:141-144
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]: ER-YAG LASER ; SMEAR LAYER ; MORPHOLOGICAL-CHANGES ; IN-VITRO ; DENTIN ; IRRADIATION ; ENAMEL ; SEM ; SURFACE ; MICROLEAKAGE
英文摘要:

Using scanning electron microscopy (SEM) we evaluated the morphology of cavity surfaces in deciduous teeth prepared in vitro with the Er:YAG laser with different power parameters. Eight extracted cavity-free deciduous teeth with an intact crown were prepared using a traditional handpiece or an Er:YAG laser with different parameters (10 Hz/200 mJ, 10 Hz/300 mJ and 10 Hz/400 mJ). Samples were then processed and cavity surface morphology was evaluated by SEM to detect open dentinal tubules, or melting or cracking of the dentin. SEM showed that laser cavity preparation in deciduous teeth using different parameters left no smear layer and the dentinal tubules were clear. Dentin melting was not seen after cavity preparation at 200 mJ or 300 mJ, while visible dentin melting and cracks were detected at 400 mJ. The use of the laser at 10 Hz/200 mJ and 10 Hz/300 mJ for cavity preparation in deciduous teeth is safe and effective, but higher powers may damage the dentin.

语种: 英语
WOS记录号: WOS:000299093400019
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/63181
Appears in Collections:北京大学口腔医学院_儿童口腔科_期刊论文

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作者单位: 1.Peking Univ, Sch Stomatol, Dept Pediat Dent, Beijing 100081, Peoples R China
2.Peking Univ, Tian Jin Stomatol Hosp, Tianjin 300020, Peoples R China

Recommended Citation:
Zhang, Sun,Chen, Tao,Ge, Li-hong. Scanning electron microscopy study of cavity preparation in deciduous teeth using the Er:YAG laser with different powers[J]. LASERS IN MEDICAL SCIENCE,2012,27(1):141-144.
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