不同根管消毒方法对慢性根尖周炎根管内毒素清除效果的临床研究  

The clearup effect of different root canal disinfection on the endotoxin in root canals of chronic periapical periodontitis

作　　者：胡永青[1] 杨冬茹[1] 李淑娟[1] 李雅[1] 梁向阳[1] HU Yong-qing;YANG Dong-ru;LI Shu-juan;LI Ya;LIANG Xiang-yang.(Department of Oral Medicine, Stomatological Hospital, Hebei Medical University, Shijiazhuang 050017, China)

机构地区：[1]河北医科大学口腔医院口腔内科,石家庄050017

出　　处：《北京口腔医学》2018年第3期150-152,共3页Beijing Journal of Stomatology

基　　金：河北省卫生计生委医学科学研究重点课题指导计划(20100446)

摘　　要：目的研究Nd:YAG激光照射、超声冲洗及氢氧化钙封药等根管消毒方法对慢性根尖周炎患牙根管内毒素的清除效果。方法选择临床诊断为慢性根尖周炎的上颌单根管前牙30颗,随机分为3组,镍钛器械常规预备后,分别采用Nd:YAG激光照射(A组)、超声冲洗(B组)及常规氢氧化钙封药(C组)等方法进行根管消毒,检测各组患牙治疗前后根管内内毒素的含量变化。结果 3组患牙治疗前内毒素含量的差异无统计学意义(P>0.05);A、B、C 3组患牙治疗前、预备后、治疗后内毒素含量差异均有统计学意义(P<0.05);治疗后3组间差异无统计学意义(P>0.05)。结论 Nd:YAG激光照射、超声冲洗、氢氧化钙封药3种消毒方法均有较强清除灭活根管内毒素作用;50mj Nd:YAG激光消毒1min或无菌蒸馏水超声冲洗1min可起到与氢氧化钙封药相同的根管内毒素清除效果。Objective To investigate the clearup effect of Nd： YAG laser,ultrasonic irrigation,and calcium hydroxide on the endotoxin in root canals of chronic periapical periodontitis. Methods Thirty maxillary anterior teeth with single root canal clinically diagnosed with chronic periapical periodontitis were randomized into these groups. After root canal preparation with nickel-titanium instrument,they were treated with Nd： YAG laser disinfection（ group A）,ultrasonic irrigation（ group B）,and calcium hydroxide disinfection（ group C）. The concentration of endotoxin in root canals was detected before and after treatments. Results After treatments,the endotoxin concentration of the three groups was significantly droped（ P〈0. 05）. There were no significant differences among the three groups.（ P〈0. 05）. Conclusion Nd：YAG laser,ultrasonic irrigation and calcium hydroxide disinfection all have a good effect on the clearup of endotoxin in root canals.

关 键 词：根管内毒素 ND:YAG激光 超声冲洗 氢氧化钙 根管消毒 

分 类 号：R781.05[医药卫生—口腔医学]