Comparison of single cone obturation performance of different novel nickel-titanium rotary systems
Comparison of single cone obturation performance of different novel nickel-titanium rotary systems
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DOI：
10.3109/00016357.2013.876554
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发表时间：
2014-10-01
影响因子：
2
通讯作者：
Arslan, Hakan
中科院分区：
文献类型：
--
作者：
Capar, Ismail Davut;Ertas, Huseyin;Arslan, Hakan
目标。本研究的目的是比较几种不同的单锥体充填牙胶的充填区域(PGFA)、封闭剂充填区域(PSFA)和空洞的充填情况，并确定所测试的牙锥的体积特征。材料和方法。用ProTaper Next、Twisted FileAdapter、OneShape、ProTaper Universal、WAVEONE和Reciproc等不同系统对120颗下颌磨牙的近中弯曲根管进行预备，并填充相应的单锥体。然后在距根尖2、4、6和8 mm处水平切开牙齿。计算每个截面的面积值并换算成占总面积的百分比(PGFA、PSFA和空洞)。为了确定被测牙锥的体积特征，使用相同的参数对每组受试者的20个牙胶点进行CBCT扫描。结果。ProTaper Next和WAVEONE组的PGFA最多，PSFA最少。Twisted文件自适应组显示最小的PGFA和最多的PSFA(p<；0.05)和最小的牙胶体积。结论。在严重弯曲的下颌第一磨牙近中颊根管中，Twisted FileAdapting系统匹配圆锥的体积最小，PGFA最小。单个匹配的球果体积各不相同。
Objectives. The purpose of this study was to compare several different single-cone obturations in the gutta-percha-filled areas (PGFA), sealer-filled areas (PSFA) and voids, also determining the volumetric characteristics of the tested cones. Materials and methods. Curved mesial roots of 120 mandibular molars were instrumented using several different systems (ProTaper Next, Twisted File Adaptive, OneShape, ProTaper Universal, WaveOne and Reciproc) and filled with corresponding single cones. The teeth were then sectioned horizontally at 2, 4, 6 and 8 mm from the apex. The area values of each section were calculated and converted to percentages (PGFA, PSFA and voids) of the total area. To determine volumetric characteristics of the tested cones, 20 gutta-percha points of each tested group were scanned with CBCT using the same parameters. Results. The ProTaper Next and WaveOne groups presented the most PGFA and least PSFA. The Twisted File Adaptive group presented the least PGFA and most PSFA (p < 0.05) and the least gutta-percha volume. Conclusions. The Twisted File Adaptive system matched cones had the least volume and the least PGFA in severely curved mesiobuccal canals of mandibular first molars. Single matched cones volume varied.