J Am Dent Assoc. 1985 Jan;110(1):100-2. doi: 10.14219/jada.archive.1985.0284.
In summary, visible light-activated composites offer better regulation of working time. Their composition differs from chemically activated composites only in the initiators and activators. The physical and mechanical properties of adequately polymerized photoactivated composites are similar to chemically activated composites. Depth of cure evaluations of the photoactivated composites are dependent on many factors, both experimental and inherent. There is currently no consensus on depth of cure values and evaluation methods. It is suggested that, if necessary, visible light-activated composites should be placed and polymerized in about 2-mm increments. It is prudent to use a longer exposure time. Exposure of visible light composites to dental operatory lights or strong ambient lighting (or both) during restorative procedures should be minimized to avoid premature polymerization. There are differences in design, spectral distribution, and radiation intensity of photoactivating light units. No definitive information is currently available on the effectiveness and optimal conditions for use of different light/composite combinations. Little information is currently available on the bioeffect of visible light radiation on human optical systems and oral tissue. At the present time there are reports of afterimages but no long-lasting bioeffects. It is strongly recommended that precautions should be taken in the care, use, and operation of photoactivating light units. Protective filter glasses should be used.
总之，可见光激活复合材料能更好地控制工作时间。它们的成分与化学激活复合材料的不同仅在于引发剂和活化剂。充分聚合的光激活复合材料的物理和机械性能与化学激活复合材料相似。光激活复合材料的固化深度评估取决于许多因素，包括实验因素和固有因素。目前对于固化深度值和评估方法尚无共识。建议在必要时，可见光激活复合材料应以约2毫米的增量放置并聚合。使用较长的曝光时间较为谨慎。在修复过程中，应尽量减少可见光复合材料暴露于牙科手术灯或强烈环境光（或两者）下，以避免过早聚合。光激活灯单元在设计、光谱分布和辐射强度方面存在差异。目前尚无关于不同光/复合材料组合的有效性和最佳使用条件的确切信息。目前关于可见光辐射对人体光学系统和口腔组织的生物效应的信息很少。目前有关于后像的报道，但没有持久的生物效应。强烈建议在光激活灯单元的保养、使用和操作中采取预防措施。应使用防护滤光眼镜。
