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EXPERIMENT OF THE LIGHT CURING UNIT USING LED

使用LED的光固化装置的实验

基本信息

批准号：
10671807
负责人：
OZAWA Masaaki
金额：
$ 2.05万
依托单位：
TSURUMI UNIV.SCHOOL OF DENTAL MEDICIN
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

项目摘要

Halogen lamp was the only light source of conventional light curing units. Recently, various light source was introduce such as Ar laser, xenon lamp, arc source and blue light emitting diode (LED). Among these sources, LED has attracted interest as an alternative to halogen lamp due to specific wave length, lifetime and energy consumption. Especially, their low energy consumption makes them suitable for portable use.In this research period, we aimed to evaluate light intensity and stability of the experimental LED curing unit which structured with cordless type.1. Component and convergence irradiation of LED light source : In 1998, we used 61 LEDs for light source of experimental curing unit, but recently, 37 LEDs are enough for cure of resin composite. Therefor the out put of LED improved four times and introducing of light reflector. And size down of light source has achieved. 2. Irradiation methods : Pulse irradiation is available for LED.The efficacy of several conditions of pulse irradiation for resin composite were evaluated. The pulse irradiation demonstrated the better capability than continuous irradiation to cure the resin composite. 3. Using of battery : The light intensity of the LED curing unit using batteries were very stable at the starting point of measurement, and there were no change for over 3000 seconds with Ni-MH buttery, and Li-ion battery from one battery charge. The efficiency of the experimental LED light curing unit achieved for clinical use sufficiently, In order to develop the cordless light activated unit of higher performance, further investigation will be needed introducing not only LED but also other new light source and irradiation methods. And recently long-awaited Blue-violet Semi-conductor Laser has also become available, by which laser diodes will possibly be used as a light source for a cordless light curing unit.

卤素灯是传统光固化装置的唯一光源。最近，各种光源相继问世，如Ar激光器、氙气灯、弧光光源和蓝光发光二极管(LED)。在这些光源中，LED因其特定的波长、寿命和能耗而成为卤素灯的替代品，引起了人们的兴趣。特别是它们的低能耗使其适合于便携式使用。在本研究期间，我们旨在评估采用无绳式结构的实验LED固化单元的光强和稳定性。LED光源的组成和会聚照射：1998年，我们使用61个LED作为实验固化装置的光源，而最近，37个LED足够用于树脂复合材料的固化。因此，LED的输出提高了四倍，并引入了反光镜。实现了光源的小型化。2.辐照方法：脉冲辐照可用于LED。对几种脉冲辐照条件对树脂复合材料的辐照效果进行了评价。脉冲辐射比连续辐射具有更好的固化性能。3.电池的使用：使用电池的LED固化单元在测量起始点的光强非常稳定，使用Ni-MH黄油和锂离子电池一次充电后3000秒内没有变化。实验中的LED光固化单元的效率充分达到了临床使用，为了开发出性能更高的无绳光激励单元，不仅需要引入LED，还需要进一步研究其他新的光源和照射方法。最近，期待已久的蓝紫光半导体激光器也出现了，激光二极管可能被用作无绳光固化单元的光源。