Soares Carlos José, Rodrigues Monise de Paula, Vilela Andomar Bruno Fernandes, Rizo Erick René Cerda, Ferreira Lorraine Braga, Giannini Marcelo, Price Richard Bengt
Department of Operative Dentistry and Dental Materials, Dental School, UFU - Universidade Federal de Uberlândia, Uberlândia, MG, Brazil.
Department of Restorative Dentistry, Piracicaba Dental School, UNICAMP - Universidade Estadual de Campinas, Piracicaba, SP, Brazil.
Braz Dent J. 2017 Jan-Feb;28(1):9-15. doi: 10.1590/0103-6440201701380.
The high irradiance and the different emission spectra from contemporary light curing units (LCU) may cause ocular damage. This study evaluated the ability of 15 eye protection filters: 2 glasses, 1 paddle design, and 12 dedicated filters to block out harmful light from a monowave (HP-3M ESPE) and a broad-spectrum (Valo, Ultradent) LED LCU. Using the anterior sensor in the MARC-Patient Simulator (BlueLight Analytics) the irradiance that was delivered through different eye protection filters was measured three times. The LCUs delivered a similar irradiance to the top of the filter. The mean values of the light that passed through the filters as percent of the original irradiance were analyzed using two-way ANOVA followed by Tukey test (a= 0.05). The emission spectra from the LCUs and through the filters were also obtained. Two-way ANOVA showed that the interaction between protective filters and LCUs significantly influenced the amount of light transmitted (p< 0.001). Tukey test showed that the amount of light transmitted through the protective filters when using the HP-3M-ESPE was significantly greater compared to when using the Valo, irrespective of the protective filter tested. When using the HP-3M-ESPE, the Glasses filter allowed significantly more light through, followed by XL 3000, ORTUS, Google Professional, Gnatus filters. The Valo filter was the most effective at blocking out the harmful light. Some protective filters were less effective at blocking the lower wavelengths of light (<420 nm). However, even in the worst scenario, the filters were able to block at least 97% of the irradiance.
当代光固化机（LCU）发出的高辐照度和不同发射光谱可能会导致眼部损伤。本研究评估了15种眼部防护滤光片的性能：2种眼镜式、1种桨式设计和12种专用滤光片，以阻挡来自单波（HP - 3M ESPE）和广谱（Valo、Ultradent）LED光固化机的有害光线。使用MARC - 患者模拟器（BlueLight Analytics）中的前部传感器，对透过不同眼部防护滤光片的辐照度进行了三次测量。光固化机向滤光片顶部提供的辐照度相似。使用双向方差分析，随后进行Tukey检验（α = 0.05），分析透过滤光片的光的平均值占原始辐照度的百分比。还获取了光固化机以及透过滤光片的发射光谱。双向方差分析表明，防护滤光片和光固化机之间的相互作用显著影响了透光量（p < 0.001）。Tukey检验表明，无论测试何种防护滤光片，使用HP - 3M - ESPE时透过防护滤光片的光量都显著大于使用Valo时的光量。使用HP - 3M - ESPE时，眼镜式滤光片透过的光量显著更多，其次是XL 3000、ORTUS、Google Professional、Gnatus滤光片。Valo滤光片在阻挡有害光方面最有效。一些防护滤光片在阻挡较低波长（<420 nm）的光方面效果较差。然而，即使在最不利的情况下，这些滤光片也能够阻挡至少97%的辐照度。
