两种材料修复体的冠边缘粘性放线菌的检测  

Examination of two types of restoration materials of the Actinomyces viscosus on the edge of crown

作　　者：茹菲亚.祖拉提 张蕾[1] 迪丽努尔.阿吉 Rufiya · ZULA TI;ZHANG Lei;Dilinuer · AJI.(Department of Prosthodontics, The First Affiliated Hospital of Xinjiang Medical Universi- ty, Urumqi 830054, Chin)

机构地区：[1]新疆医科大学第一附属医院口腔修复科,新疆乌鲁木齐830054

出　　处：《口腔医学》2018年第3期245-248,共4页Stomatology

基　　金：新疆维吾尔自治区自然科学基金联合基金(2016D01C-252)

摘　　要：目的研究老年患者中,两种材料修复体冠修复前后不同时期冠边缘龈下菌斑中粘性放线菌的定植变化。方法收集门诊就诊老年患者中下颌第一磨牙要求行冠修复的患者共60例,随机编入二氧化锆组与钯银合金烤瓷冠组,采用自身前后对照法,将牙体预备前的患牙设为对照组,冠修复后6个月、12个月的患牙设为试验组,并分别在这3个时期收集冠边缘龈下菌斑,采用荧光定量聚合酶链式反应技术对临床样本进行粘性放线菌的相对定量分析。结果与修复前比较,二氧化锆全瓷冠组修复后6个月、12个月的粘性放线菌相对定量值差异无统计学意义(P>0.05);钯银合金烤瓷冠组修复后6个月、12个月的粘性放线菌相对定量值差异有统计学意义(P<0.05)。结论二氧化锆全瓷冠可能可以更好地降低冠修复后患继发龋的风险。Objective To research the variation of Actinomycetes viscous （A.v） of two kinds of high biocompatibility crown materials in different periods before and after restoration among the elderlg. Methods A total of 60 clinic patients, who needed restoration treat- ment of the mandibular first molar were collected, and randomly divided into zirconium dioxide all-ceramic crown group and sliver-pal- ladium alloy porclain group. The self control study was used, the one before tooth preparation was set as control group, the one after restoration in six months and twelve months as experimental group. And the subgingival plaque on the edge of the crown was collected, fluorescent quantitative polymerase chain reaction was adopted to have relative quantitative analysis of A.v of samples. Results Com- pared with those before restoration, the quantity of A.v in six and twelve months after restoration in the zirconium dioxide all-ceramic crown group had no statistital difference （P〉0.05） ; the quantity of A. v in six and twelve months after restoration in the sliver-palladium alloy porclain crown group had statistical difference（P〈0.05）. Conclusion The zirconium dioxide all-ceramic crown can better reduce the risk of dental caries.

关 键 词：老年人 粘性放线菌 荧光定量聚合酶链式反应 

分 类 号：R780.2[医药卫生—口腔医学]