Comparative evaluation of the shaping ability of single-file system versus multi-file system in severely curved root canals
Comparative evaluation of the shaping ability of single-file system versus multi-file system in severely curved root canals
复制标题
单锉系统与多锉系统在严重弯曲根管中成形能力的比较评估
DOI：
10.1016/j.jds.2017.09.005
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发表时间：
2018-02
影响因子：
3.5
通讯作者：
Yang Guobin
中科院分区：
文献类型：
--
作者：
Yuan Guohua;Yang Guobin
背景/目的往复式单锉系统是最新的镍钛器械，有关这些新系统的成形能力的信息很少。有必要将这些单文件系统与众所周知的旋转多文件系统进行比较。本研究的目的是比较单根管锉系统（WaveOne，WO）与多根管锉系统（ProTaper Next，PTN）在严重弯曲根管中的成形能力。使用微型计算机断层扫描仪扫描标本之前和之后的仪器。评价两组根管表面积、体积、结构模型指数（SMI）、厚度、伸直度、未器械表面积比和根管运输的差异。结果两组根管预备后轮廓均呈光滑锥形。两组预备后根管表面积、体积、SMI、根管厚度和根管弯曲度均明显增加，组间差异无统计学意义。在根尖三分之一处，WO预备的根管在主弯曲方向上的移动量大于PTN组。大约29-34%的根管表面仍然uninstrumented准备后，没有显着差异被注意到groups.ConclusionBoth的两个仪器系统保持了原来的轮廓，以及根管。PTN根管的根管长度较短，根管的中心位置较好。
Background/purposeReciprocating single-file systems are the latest nickel-titanium instruments and little information is available concerning the shaping ability of these new systems. Comparison of these single-file systems with well-known rotary multi-file systems is necessary. The purpose of this study was to compare the shaping ability of single-file system (WaveOne, WO) versus multiple-file system (ProTaper Next, PTN) in severely curved canals.Materials and methodsA total of 20 severely curved canals were prepared with WO or PTN. Micro-computed tomography was used to scan the specimens before and after instrumentation. Differences between two groups in canal surface area, volume, Structure Model Index (SMI), thickness, straightening, the ratio of uninstrumented surface area and canal transportation were evaluated.ResultsThe outline of the canals after preparation showed smooth taper in both groups. Canal surface area, volume, SMI, Thickness and canal curvature were significantly increased after preparation in both groups, and no significant difference was found between groups. At apical third, canals prepared with WO showed larger values of transportation compared with those in PTN group in the direction of main curvature. Approximately 29–34% of the root canal surface remained uninstrumented after preparation and no significant difference was noticed between groups.ConclusionBoth of the two instrument systems maintained the original outline of the canals well. The canals prepared with PTN had less transportation and were better centered in the apical region.
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影响因子：
4.2
作者：
Zhao, Dan;Shen, Ya;Haapasalo, Markus
通讯作者：
Haapasalo, Markus
影响因子：
4.2
作者：
Capar, Ismail Davut;Ertas, Huseyin;Ertas, Elif Tarim
通讯作者：
Ertas, Elif Tarim
影响因子：
5
作者：
Peters, OA;Schönenberger, K;Laib, A
通讯作者：
Laib, A
影响因子：
4.2
作者：
Ye, Jia;Gao, Yong
通讯作者：
Gao, Yong
影响因子：
4.2
作者：
Gagliardi, Jason;Versiani, Marco Aurelio;Basrani, Bettina
通讯作者：
Basrani, Bettina