激光荧光龋齿诊断仪用于充填物下龋损的检查  

Application of DIAGNOdent in examination of carious lesion under filling

作　　者：宁晖丽[1] 陈玫 刘成霞[1] 赵建江[3] 

机构地区：[1]南方医科大学附属口腔医院/广东省口腔医院番禺分院牙体牙髓科,广州511400 [2]福建省厦门市口腔医院儿童口腔科,361004 [3]南方医科大学附属口腔医院/广东省口腔医院口腔颌面外科,广州510280

出　　处：《重庆医学》2016年第31期4393-4395,共3页Chongqing medicine

基　　金：广东省科技计划项目(2013B021800153);广州市科技惠民专项项目(2014Y2-00109);广东省自然科学基金(2015A030313787)

摘　　要：目的 探讨激光荧光龋齿诊断仪用于牙科充填物下龋损检查的可行性和影响因素.方法 应用激光荧光龋齿诊断仪测量各种材料（1种窝沟封闭剂、6种树脂和1种银汞）1 mm厚时的自身荧光值,然后测量荧光值为99的龋损组织位于0～1mm封闭剂和树脂下、1 mm和2 mm银汞下时的荧光值.结果 材料自身荧光值均小于龋齿诊断界值13.龋损位银汞下时,测量值接近0.龋损位封闭剂和树脂下时,测量值减少,减少量分别为64.3±29.6和73.7±21.6,测量值与材料厚度呈负相关（P=0.000）,诊断一能检查到龋损的封闭剂和树脂厚度分别为（0.384±0.250）mm和（0.340±0.203）mm.结论 该诊断仪不能用于银汞下龋损的检查,可用于极薄的封闭剂和树脂下龋损的检查.Objective To investigate the feasibility of DIAGNOdent in the examination of carious tissue under dental filling and its influencing factors. Methods The experiment contained 1 pit and fissure sealant,6 kinds of resin and 1 silver amalgam. The autofluorescence in 1 mm thickness of various material was measured by the DIAGNOdent instrument. Then the flurorescence value of carious tissue with the flurorescence value of 99 under 0-1 mm thickness of sealant and resin, lmm and 2mm of silver amalgam was measured. Results The material autofluorescence value was less than the carious diagnostic critical value 13. When the carious tissue located under amalgam, the measurement value was close to 0. When the carious lesion located under the sealant and resin, the measurement values were decreased, the decrements were 64.3± 29.6 and 73.7±21.6 respectively, the measurement value was negatively correlated with the material thickness （P = 0. 000）, the material thickness of carious lesion enable to be detected was （0. 384±0. 250）mm and（0. 340±0. 203）mm respectively. Conclusion The DIAGNOdent can not be used the carious examination under silver amalgam and can be used the carious lesion examination under extremely thin sealant and resin.

关 键 词：龋齿 激光荧光龋齿诊断仪 窝沟封闭剂 树脂 银汞 

分 类 号：R781.1[医药卫生—口腔医学]