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首页> 外文会议>Conference on Light and Optics in Biomedicine Oct 23-25, 2000, Warsaw, Poland >LASER -INDUCED FLUORESCENCE AS A METHOD OF EARLY CARIES DIAGNOSIS
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LASER -INDUCED FLUORESCENCE AS A METHOD OF EARLY CARIES DIAGNOSIS

机译：激光诱导的荧光作为早期龋齿诊断方法

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Use of lasers in dentistry dates back 20 years but is still not fully exploited, especially when concerning the hard dental tissues. Over the past many efforts and actions have been involved in testing and developing new methods for caries diagnosis. The implementation of these methods in general dental practice is unfortunately still limited because too little scientific evidence exists to support them. One of the age-old concerns for dentists is that decay is often discovered too late. Dentists commonly use x-ray imaging for early caries detection, but this method cannot reveal decay at a sufficiently early stage to avoid restorative methods. Generally, if a caries lesion is detected by x-ray, the mineral loss within the tooth is normally very high and will need invasive treatment. Several laser-based techniques, as also other optical methods of detecting caries lesions at an early stage seem to be very promising. Fluorescence of tooth structure is observed when hard tissues are illuminated using laser light. Decayed areas appear dark and provide a contrast against the healthy background surrounding them, so discriminating sound and carious tissues. The aim of this study was to present the possibilities of using laser induced fluorescence in the diagnosis of early caries lesions. The current state-of-the-art is presented, as well as results of our investigations. In our studies an argon ion laser was used to illuminate the teeth and the fluorescence pictures were captured with a CCD camera and then analyzed. Results confirmed that laser induced fluorescence can be used as a sensitive method of caries diagnosis
机译：激光在牙科领域的使用可以追溯到20年前，但仍未得到充分利用，特别是在涉及坚硬的牙齿组织时。在过去，许多努力和行动涉及测试和开发龋齿诊断的新方法。不幸的是，这些方法在一般牙科实践中的实施仍然受到限制，因为科学证据不足以支持它们。对牙医来说，古老的顾虑之一是发现腐烂通常为时已晚。牙医通常使用X射线成像技术进行早期龋齿检测，但是这种方法无法在足够早期就揭示出龋齿，从而避免了修复方法。通常，如果通过X射线检测到龋齿病变，则牙齿内的矿物质损失通常很高，需要进行侵入性治疗。几种基于激光的技术以及其他早期检测龋齿病变的光学方法似乎非常有前途。当用激光照射硬组织时，观察到牙齿结构的荧光。腐烂的区域显得较暗，并与周围的健康背景形成对比，从而区分出声音和龋齿组织。这项研究的目的是提出使用激光诱导的荧光诊断早期龋损的可能性。介绍了当前的最新技术以及我们的调查结果。在我们的研究中，使用氩离子激光照射牙齿，并用CCD相机捕获荧光图像，然后进行分析。结果证实激光诱导的荧光可以作为龋齿诊断的灵敏方法

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