两种Protaper镍钛器械对根管充填密合度的影响及评价  

Evaluation of influences on the sealing ability in filled canals shaped by protaper nickel-titanium instruments

作　　者：李荣振[1] 张俊红[2] 

机构地区：[1]泰安市口腔医院,山东泰安271000 [2]泰安市中医二院,山东泰安271000

出　　处：《泰山医学院学报》2013年第7期497-499,共3页Journal of Taishan Medical College

摘　　要：目的研究观察机用与手用Protaper镍钛器械对根管充填密合度的影响。方法选取我科收治的牙周病或者正畸减数患者所拔除的单根管前牙和单根管前磨牙,共计64颗,将其随机分为手用组与机用组两组,每组各32例。对两组患者进行相应的根管充填,并且使用CT片与X线根尖片对根充密合度进行评价。结果两组对根管上、中1/3根充密合度,差异无统计学意义(P>0.05);机用组在根管下1/3段的预备成形,扩大根尖孔上有明显的优势,能有效去除根尖1/3的牙本质碎屑,两组比较,差异有统计学意义(P<0.05)。结论机用Protaper镍钛器械相对于手用Protaper镍钛器械可以更有效的预备根尖1/3根管,更优越的根管成形能力以及切削能力。Objective：With the hand Protaper NiTi instruments in root canal filling degree of influence on the study of machine. Methods：selected in our department were periodontal disease or orthodontic extraction were extracted single root canal anterior teeth and molars, a total of 64 teeth, which were randomly divided into hand and machine group two groups, each group of 32 cases. For the corresponding root canal fining of two groups of patients, and the use of CT and X - ray periapical films adaptation evaluation of root canal filling was. Results ： there was no significant difference between two groups of tube, 1/3 obturation density difference （P 〉 0.05） ; the two group of 1/3 on root canal obturation density, the difference was statistically significant （P 〈0.05） ; preparation forming machine group in the root canal under the 1/3 sec- tion, can be better apical foramen enlargement, and can effectively be dentin debris removal, comparing the two groups, the difference was not statistically significant （ P 〉 0.05 ）. Conclusions： using Protaper nickel - titanium instruments with respect to hand Protaper nickel titanium instruments can prepare the root 1/3 root more effective management, superior abil- ity of root canal shaping and cutting ability.

关 键 词：PROTAPER 镍钛器械 根管充填密合度 X线根尖片 口腔CT 

分 类 号：R781.05[医药卫生—口腔医学]