声波与镍钛根管器械在下颌第二磨牙C形根管治疗的联合应用  

Application of sonic and nickel-titanium endodontic instruments for C-shaped root canals in mandibular second molars

作　　者：黎石坚[1] 陈燕[1] 陆兆威[1] 罗菊芬[1] 

机构地区：[1]广西壮族自治区人民医院口腔内科,广西南宁530021

出　　处：《牙体牙髓牙周病学杂志》2013年第10期662-665,共4页Chinese Journal of Conservative Dentistry

基　　金：广西壮族自治区卫生厅立项研究项目(Z20011452)

摘　　要：目的:观察声波与镍钛根管器械联合应用于慢性根尖周炎并具有C形根管的下颌第二磨牙根管治疗的效果。方法:将165例171个符合条件的磨牙随机分为2组:实验组88个,用MM1500声波手机及其配套的Rispisonic锉针和镍钛旋转器械Hero 642系统预备根管;对照组83个,手用不锈钢锉预备根管。2组均用氢氧化钙糊剂根管封药消毒后侧方加压法完成根管充填。对2组的根管预备并发症、治疗期间疼痛反应、充填质量以及术后0.5、1、2年的疗效进行比较。结果:实验组较对照组的疼痛反应轻且少(P<0.05),根管充填质量好(P<0.05);对照组根管预备并发症的总数和台阶形成相对较多(P<0.05);术后半年疗效实验组好于对照组(P<0.05),1、2年间疗效则无明显差别(P>0.05)。结论:声波与镍钛根管器械联合应用于C形根管的下颌第二磨牙慢性根尖周炎的根管治疗,可减轻疼痛,减少并发症,提高根管充填质量和短期疗效。AIM：To investigate the clinical efficacy of sonic endodontic instrument combined with nickeltitanium instrument in root canal therapy of C-shaped root canals in mandibular second molars with chronic apical periodontitis.METHODS：171 teeth in 165 patients were randomly divided into two groups.Root canals of 88 teeth in experiment group were prepared by sonic endodontic instrument and Hero 642 rotary Nickel-titanium instrument.Root canals of 83 teeth in control group were prepared by K-fiies.After preparation,all root canals were disinfected by calcium hydroxide paste,and obturated with lateral condensation technique.Post-operative pain,root canal obturation quality,post RCT complication were evaluated at 6 month,1 and 2 years after operation.RESULTS：In experment group post-operative pain was lighter than （P ＜ 0.05）,obturation quality was better （P ＜ 0.05）.The incidence of complications of root canal preparation and ledge formation were higher in control group（P ＜ 0.05）.Experiment group showed better clinical outcome at 6 m follow-up（P ＜0.05）.However,no significant difference was found between the two groups 1 and 2 years after operation（P ＞0.05）.CONCLUSION：The combination of sonic and nickel-titanium endodontic instruments is effective in the treatment of C-shaped root canals in mandibular second molars.It can reduce the incidence of complications and post-operative pain,and improve the quality of canal obturation.

关 键 词：声波器械 镍钛器械 根管预备 C形根管 

分 类 号：R781.05[医药卫生—口腔医学]