不同镍钛机动器械对牙髓炎患者疼痛情况、器械折断率的影响  

Effects of different nickel-titanium rotary instruments on the pain and broken rate of instruments in patients with pulpitis

作　　者：刘帆 苗保磊 LIU Fan;MIAO Bao-lei(Baoji Stomatological Hospital,Baoji 721000,China)

机构地区：[1]宝鸡市口腔医院,陕西宝鸡721000

出　　处：《临床医学研究与实践》2020年第16期90-92,共3页Clinical Research and Practice

摘　　要：目的探索不同镍钛机动器械对牙髓炎患者疼痛情况、器械折断率的影响。方法选择收治的80例牙髓炎患者作为研究对象,采用抓阄随机化分组法将其分为观察组和对照组,每组40例。观察组采用Protaper机镍钛预备系统干预,对照组采用Mtwo机用镍钛根管锉。比较两组的干预效果。结果两组患者的根管形态好率、根管填充适充率、器械折断率、根管预备时间均无显著差异(P>0.05)。观察组Negm分级Ⅰ级率高于对照组(P<0.05)。结论Mtwo机用镍钛根管锉、Protaper机镍钛预备系统在牙髓炎患者中均可达到显著效果,但Protaper机镍钛预备系统疼痛感更轻。Objective To explore the effects of different nickel-titanium rotary instruments on the pain and broken rate of instruments in patients with pulpitis.Methods Eighty patients with pulpitis were selected as the study objects and divided into observation group and control group according to random grouping by lot drawing,with 40 cases in each group.The observation group was intervened by the ProTaper machine nickel-titanium preparation system,and the control group was treated by the Mtwo machine nickel-titanium root canal files.The intervention effects were compared between the two groups.Results There were no significant differences between the two groups in the rate of good root canal shape,good filling rate of root canal filling,the broken rate of instruments and the time of root canal preparation(P>0.05).The Negm gradeⅠrate in the observation group was higher than that in the control group(P<0.05).Conclusion Both Mtwo machine nickel-titanium root canal files and Protaper machine nickel-titanium preparation system can achieve significant results in patients with pulpitis,but Protaper machine nickel-titanium preparation system has less pain.

关 键 词：牙髓炎 镍钛机动器械 疼痛 器械折断率 

分 类 号：R781.31[医药卫生—口腔医学]