牙体牙髓牙周病学杂志
牙體牙髓牙週病學雜誌
아체아수아주병학잡지
CHINESE JOURNAL OF CONSERVATIVE DENTISTRY
2014年
11期
665-667,670
,共4页
光源距离%LED光固化灯%照射强度%光导棒
光源距離%LED光固化燈%照射彊度%光導棒
광원거리%LED광고화등%조사강도%광도봉
distance of light source%LED light unit%light intensity%light guide
目的:评估6种LED固化灯光照射强度随光源距离的增加出现衰减的程度。方法:选择6种LED光固化灯:配置标准光导棒的Bluephase、Bluephase C8和Elipar S10,配置聚光透镜的Ascent PX ,配置涡轮光导棒的Demi和Ti-Lite GT-1500。使用光强测量仪在距光源0、1、2、3、4、5 mm测量光固化灯的光照射强度,每一距离测量10次,并计算光强度平均值及相应的光强度衰减率。结果:6种固化灯初始光强度分别为859 mW/cm2(Bluephase C8)、1121 mW/cm2(Bluephase)、1133 mW/cm2(Elipar S10)、1300 mW/cm2(Ascent PX)、1497 mW/cm2(Demi)和1192 mW/cm2(Ti-Lite)。除Ascent PX的1~3 mm光源距离外,光源距离每增加1 mm,6种固化灯的光照射强度均出现显著降低(P<0.05)。距离光源5 mm时,只有Bluephase、Elipar S10和Ascent PX的光强度超过了400 mW/cm2,光强度衰减率分别为56.7%、58.7%、53.8%,明显低于Bluephase C8(66%)、Demi(78.8%)和Ti-Lite(>72.2%)。结论:临床中应尽可能选用高强度LED固化灯并延长照射时间以弥补光源距离增加所造成的光强度衰减,建议选择配置标准光导棒或聚光透镜的高强度LED光固化灯。
目的:評估6種LED固化燈光照射彊度隨光源距離的增加齣現衰減的程度。方法:選擇6種LED光固化燈:配置標準光導棒的Bluephase、Bluephase C8和Elipar S10,配置聚光透鏡的Ascent PX ,配置渦輪光導棒的Demi和Ti-Lite GT-1500。使用光彊測量儀在距光源0、1、2、3、4、5 mm測量光固化燈的光照射彊度,每一距離測量10次,併計算光彊度平均值及相應的光彊度衰減率。結果:6種固化燈初始光彊度分彆為859 mW/cm2(Bluephase C8)、1121 mW/cm2(Bluephase)、1133 mW/cm2(Elipar S10)、1300 mW/cm2(Ascent PX)、1497 mW/cm2(Demi)和1192 mW/cm2(Ti-Lite)。除Ascent PX的1~3 mm光源距離外,光源距離每增加1 mm,6種固化燈的光照射彊度均齣現顯著降低(P<0.05)。距離光源5 mm時,隻有Bluephase、Elipar S10和Ascent PX的光彊度超過瞭400 mW/cm2,光彊度衰減率分彆為56.7%、58.7%、53.8%,明顯低于Bluephase C8(66%)、Demi(78.8%)和Ti-Lite(>72.2%)。結論:臨床中應儘可能選用高彊度LED固化燈併延長照射時間以瀰補光源距離增加所造成的光彊度衰減,建議選擇配置標準光導棒或聚光透鏡的高彊度LED光固化燈。
목적:평고6충LED고화등광조사강도수광원거리적증가출현쇠감적정도。방법:선택6충LED광고화등:배치표준광도봉적Bluephase、Bluephase C8화Elipar S10,배치취광투경적Ascent PX ,배치와륜광도봉적Demi화Ti-Lite GT-1500。사용광강측량의재거광원0、1、2、3、4、5 mm측량광고화등적광조사강도,매일거리측량10차,병계산광강도평균치급상응적광강도쇠감솔。결과:6충고화등초시광강도분별위859 mW/cm2(Bluephase C8)、1121 mW/cm2(Bluephase)、1133 mW/cm2(Elipar S10)、1300 mW/cm2(Ascent PX)、1497 mW/cm2(Demi)화1192 mW/cm2(Ti-Lite)。제Ascent PX적1~3 mm광원거리외,광원거리매증가1 mm,6충고화등적광조사강도균출현현저강저(P<0.05)。거리광원5 mm시,지유Bluephase、Elipar S10화Ascent PX적광강도초과료400 mW/cm2,광강도쇠감솔분별위56.7%、58.7%、53.8%,명현저우Bluephase C8(66%)、Demi(78.8%)화Ti-Lite(>72.2%)。결론:림상중응진가능선용고강도LED고화등병연장조사시간이미보광원거리증가소조성적광강도쇠감,건의선택배치표준광도봉혹취광투경적고강도LED광고화등。
AIM:To investigate the effect of distance from light source on the light intensity decrease of 6 LED light units.METHODS:The light intensity LED light units,Bluephase C8,Bluephase and Elipar S10 equipped with standard light guide,Ascent PX equipped with a condenser lens,Demi and Ti-Lite GT-1500 equipped with a tur-bo light guide,was respectively measured at 0,1,2,3,4,and 5 mm respectively from the tip of the light guide with a radiometer.Measurements were repeated for 10 times at each distance to obtain the mean value and the decrease per-cent of the light intensity.RESULDS:The light intensities at 0 mm from light source were 859 mW/cm2 (Bluephase C8),1 121 mW/cm2(Bluephase),1 133 mW/cm2(Elipar S10),1 300 mW/cm2(Ascent PX),1 497 mW/cm2(De-mi)and 1 192 mW/cm2 (Ti-Lite)respectively,and the light intensity decreased for all LED light units with the in-crease of the distance from light source (P<0.05),except for Ascent PX at 1 -3 mm from light source of.At 5 mm, the light intensity of Bluephase,Elipar S10,and Ascent PX were more than 400 mW/cm2 ,and their according de-crease percent of light intensity were 56.7%,58.7%,and 53.8% respectively,which were significantly lower than that of Bluephase C8 (66%),Demi (78.8%)and Ti-Lite GT-1 500 (>72.2%).CONCLUSION:High power LED unit with an extensive exposure time is necessary to compensate the attenuation of light intensity with the increase of tooth cavity depth.High power LED unit with a standard light guide or a condenser lens is recommended for clinical application.