| 二极管激光照射牙本质后的形态变化研究 |
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| 引用本文： | 高杰,刘影,罗世高,詹雪灵,吴补领. 二极管激光照射牙本质后的形态变化研究[J]. 牙体牙髓牙周病学杂志, 2011, 0(10): 564-567 |
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| 作者姓名： | 高杰 刘影 罗世高 詹雪灵 吴补领 |
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| 作者单位： | 南方医科大学南方医院口腔医疗中心;南方医科大学口腔医学院; |
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| 基金项目： | 广东省科技计划项目(2010B060900053); 南方医院院长基金(2009B013) |
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| 摘 要： | 目的:探讨用980 nm波长二极管激光照射牙本质表面后其形态变化,以了解二极管激光对牙本质表面的作用,辅助临床选择最佳治疗方案。方法:选择离体上下颌第三磨牙,垂直于牙体长轴磨除面釉质均匀暴露牙本质,并制成2 mm厚的牙本质片,将牙本质片划分为4个区域,每个区域12 mm2,用牙科二级管激光治疗仪分别以2、3、4 W照射牙本质片5 s,并重复一次。标本干燥喷金后扫描电镜观察牙本质形态变化。结果:3种能量均可封闭牙本质小管,并随能量密度增加牙本质小管封闭面积增加。但随着能量增加,管间牙本质的熔融程度增加。结论:使用980 nm波长二极管激光,在2 W,166 J/cm2能量密度时即可有效封闭牙本质小管口且可避免牙本质过度熔融,可以作为牙本质敏感症的治疗参数。
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| 关 键 词： | 980nm二极管激光 牙本质 扫描电镜 |
Morphological alterations of dentinirradiated with 980 nm diode laser |
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| GAO Jie,LIU Ying,LUO Shi-gao,ZHAO Xue-ling,WU Bu-ling. Morphological alterations of dentinirradiated with 980 nm diode laser[J]. Chinese Journal of Conservative Dentistry, 2011, 0(10): 564-567 |
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| Authors: | GAO Jie LIU Ying LUO Shi-gao ZHAO Xue-ling WU Bu-ling |
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| Affiliation: | GAO Jie,LIU Ying,LUO Shi-gao,ZHAO Xue-ling,WU Bu-ling(Dental Center,Nanfang Hospital,Southern Medical University School of Stomatology,Southern Medical University,Guangzhou 510515,China) |
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| Abstract: | AIM: To study the morphological alterations of dentin irradiated with 980-nm diode laser so as to find out the best parameter of laser irradiation for dentin hypersensitive treatment.METHODS: The third maxillary molar and mandibular molar were selected to prepare 2 mm thickness dentin slices by a high speed bur.The dentin slice was divided into 4 sections,each section was 12 mm2.Sections were irradiated by different laser power(2W,3W,4W) for 5s and the treatment repeated once.Specimens were dehydrated and c... |
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| Keywords: | 980 nm Diode laser dentin SEM |
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