Hegde Vivek, Jadhav Sameer, Aher Gayatri B
Department of Conservative Dentistry and Endodontics, M.A. Rangoonwala College of Dental Sciences and Research Centre, Azam Campus, Pune, Maharashtra - 411 001, India.
J Conserv Dent. 2009 Jul;12(3):105-8. doi: 10.4103/0972-0707.57633.
The purpose of this study is to examine the intensity of light curing units and factors affecting it in dental offices.
The output intensity of 200 light curing units in dental offices across Maharashtra were examined. The collection of related information (thenumber of months of use of curing unit, the approximate number of times used in a day, and presence or absence of composite build-ups) and measurement of the intensity was performed by two operators. L.E.D Radiometer (Kerr) was used for measuring the output intensity. The average output intensity was divided into three categories (<200 mW/cm(2), 200-400 mW/ cm(2)and >400 mW/cm(2)).
Among the 200 curing units examined, 81 were LED units and 119 were QTH units. Only 10% LED machines and 2% QTH curing units had good intensities (>400 mW/cm( 2)).
Most of the examined curing lights had low output intensity ranging from 200 to 400 mW/cm(2), and most of the curing units had composite build-ups on them.
本研究旨在检测牙科诊所中光固化灯的强度及其影响因素。
检测了马哈拉施特拉邦各牙科诊所的200台光固化灯的输出强度。由两名操作人员收集相关信息(固化灯的使用月数、每日大致使用次数以及是否有复合树脂堆积)并测量强度。使用L.E.D辐射计(克尔公司)测量输出强度。平均输出强度分为三类(<200毫瓦/平方厘米、200 - 400毫瓦/平方厘米和>400毫瓦/平方厘米)。
在检测的200台固化灯中,81台为发光二极管(LED)灯,119台为石英卤钨灯(QTH)。仅有10%的LED灯和2%的QTH固化灯强度良好(>400毫瓦/平方厘米)。
大多数检测的固化灯输出强度较低,范围在200至400毫瓦/平方厘米之间,且大多数固化灯上有复合树脂堆积。