NIC X-FILE和DENCO Pre-Shaper镍钛器械对模拟弯曲根管成形的影响  

Influence of NIC X-FILE and DENCO Pre-Shaper nickel-titanium instruments on the shaping of simulated curved canals

作　　者：申煜荣 乃仁桐 赵玲 刘飞刚 尹曹洋 顾远平 陈铁一 Shen Yurong;Nai Rentong;Zhao Ling;Liu Feigang;Yin Caoyang;Gu Yuanping;Chen Tieyi(Affiliated Stomatology Hospital of Guilin Medical University,Guilin 541000,Guangxi Zhuang Autonomous Region,China;Guilin Stomatological Hospital,Guilin 541000,Guangxi Zhuang Autonomous Region,China)

机构地区：[1]桂林医学院附属口腔医院,广西壮族自治区桂林市541000 [2]桂林市口腔医院,广西壮族自治区桂林市541000

出　　处：《中国组织工程研究》2024年第3期387-391,共5页Chinese Journal of Tissue Engineering Research

基　　金：广西科技计划项目(桂科AB20159002),项目参与者:顾远平、申煜荣;桂林市科学研究与技术开发计划项目(20210227-15),项目参与者:陈铁一、顾远平、申煜荣、乃仁桐;国家级大学生创新训练项目(202110601040),项目负责人:乃仁桐。

摘　　要：背景:根管预备是根管治疗的关键步骤,近年来随着新型镍钛器械的迅速发展,根管成形能力得到了显著提高,然而不同种类的镍钛系统成形能力亦不同,目前国内外关于R相热处理机用镍钛器械NIC X-FILE和DENCO Pre-Shaper对弯曲根管成形能力的影响鲜见报道。目的:比较NIC X-FILE和DENCO Pre-Shaper机用镍钛锉预备树脂模拟弯曲根管的成形效果。方法:选取树脂模拟弯曲根管50个,随机分为2组(n=25),分别使用NIC X-FILE、DENCO Pre-Shaper镍钛根管锉进行根管预备,记录根管预备时间、采集根管预备前后图像。使用图像处理和分析软件测量各观测点的根管内、外侧壁树脂去除量,运用统计学软件,对比研究两种机用镍钛锉的根管预备时间和中心定位能力。结果与结论:①DENCO Pre-Shaper组平均根管预备时间为(1.58±0.02)min,NIC X-FILE组平均根管预备时间为(2.22±0.03)min,两组间比较差异有显著性意义(P<0.05);②DENCO Pre-Shaper组在距离根尖孔4,5,7,8,9,10 mm处的内侧树脂去除量多于NIC X-FILE组(P<0.05),在距离根尖孔3,5,6,7,8 mm处的外侧树脂去除量少于NIC X-FILE组(P<0.05);③在距离根尖孔2,4,5,6,7,8,9 mm处,NIC X-FILE组的中心定位能力优于DENCO Pre-Shaper组(P<0.05),其中在距离根尖孔4 mm处的中心定位能力最佳;④结果表明,DENCO Pre-Shaper根管锉较NIC X-FILE镍钛根管锉具有较高的机械效率,但其中心定位能力不如NIC X-FILE镍钛根管锉。BACKGROUND:Root canal preparation is a key step in root canal therapy.In recent years,with the rapid development of new nickel-titanium instruments,the results of root canal shaping ability have been significantly improved.However,the shaping abilities of different nickel-titanium instruments are also different.At present,there are few reports about the influence of the shaping ability of R-phase heat treatment NIC X-FILE and DENCO Pre-Shaper in simulated curved canals.OBJECTIVE:To compare the shaping effect of NIC X-FILE and DENCO Pre-Shaper nickel-titanium instruments in preparation for simulated curved canals.METHODS:Fifty simulated resin-curved canals were selected and randomly divided into two groups(n=25).NIC X-FILE and DENCO Pre-Shaper nickel-titanium files were used for root canal preparation.The root canal preparation time was recorded.Images of pre-and post-root canal preparation were taken.Image processing and analysis software were used to measure the amount of resin removed from the inner and outer walls of the root canal at each observation point.Statistical software was used to compare the root canal preparation time and centering ability of two kinds of mechanical nickel-titanium files.RESULTS AND CONCLUSION:(1)The average root canal preparation time was(1.58±0.02)minutes in the DENCO Pre-Shaper group and(2.22±0.03)minutes in the NIC X-FILE group.There was a significant difference between the two groups(P<0.05).(2)The amount of resin removed from the inner walls of the root canal of the DENCO Pre-Shaper group at 4,5,7,8,9,and 10 mm from the apical foramen was higher than that of the NIC X-FILE group(P<0.05).The amount of resin removed from the outer walls of the root canal of the DENCO Pre-Shaper group at 3,5,6,7,and 8 mm from the apical foramen was lower than that of the NIC X-FILE group(P<0.05).(3)At 2,4,5,6,7,8,and 9 mm away from apical foramen,the centering ability of the NIC X-FILE group was better than that of the DENCO Pre-Shaper group(P<0.05),and the centering ability of the NIC X-FILE g

关 键 词：NIC X-FILE DENCO Pre-Shaper 根管预备 镍钛器械 根管预备时间 中心定位能力 

分 类 号：R459.9[医药卫生—治疗学] R318.08[医药卫生—临床医学] R781.3