在弯管中使用手动和机械化滑道器械以及 ProTaper Gold 和 ProTaper Next 系统:显微 CT 研究。

IF 1.5 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Brazilian oral research Pub Date : 2024-01-05 eCollection Date: 2024-01-01 DOI:10.1590/1807-3107bor-2024.vol38.0006
Breno Nappi Ventura, Giulio Gavini, Elaine Faga Iglecias, Laila Gonzales Freire, Celso Luiz Caldeira
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引用次数: 0

摘要

本研究的目的是评估 ProTaper Gold(PTG)与 ProTaper Next(PTN)器械系统的根管塑形效果,以及手动 15 号 K 型锉(K15)与 ProGlider(PG)机械化器械在严重弯曲的中轴管中创建滑行路径的效果。使用计算机断层扫描对 24 颗具有两个独立中轴管的下颌磨牙进行解剖匹配,然后根据使用的滑道器械(K15 或 PG)将其分为两组(n=12)。在所有牙齿中,PTG 系统用于制备颊中管,PTN 用于制备舌中管。在根管预备前后,对牙齿进行计算机显微断层扫描,并确定初始体积、最终体积、体积变化、未触及壁和根管运输变量的值。数据分析采用双因素方差分析,多重比较采用 Tukey 检验。无论是在根颈部、根中部、根尖三分之一处,还是在整个根管,各研究组在体积变化和根管运输方面均无明显差异(P>0.05)。在根尖三分之一处,使用 K15 的组别未触及根管壁的百分比明显高于使用 PG 的组别(p
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Using manual versus mechanized glide path instruments and ProTaper Gold versus ProTaper Next systems in curved canals: micro-CT study.

The aim of this study was to evaluate the root canal shaping effect of ProTaper Gold (PTG) versus ProTaper Next (PTN) instrumentation systems, and of a manual #15 K-type file (K15) versus the ProGlider (PG) mechanized instrument for glide path creation, in severely curved mesial canals. Twenty-four mandibular molars with two separate mesial canals were anatomically matched using computed tomographic scanning, and then divided into two groups (n=12) according to the glide path instrument used, either K15 or PG. In all teeth, the PTG system was used to prepare the mesiobuccal canal, and the PTN, the mesiolingual canal. The teeth were scanned by computed microtomography, before and after root canal preparation, and the values of the initial volume, final volume, volumetric variation, untouched walls, and canal transportation variables were determined. The data were analyzed using the two-way ANOVA test, and the Tukey test for multiple comparisons. There was no significant difference among the study groups regarding volumetric variation or root canal transportation, either in the cervical, middle or apical thirds, or in the entire root canal (p>0.05). In the apical third, the percentage of untouched walls was significantly higher in groups using K15 than in those using PG (p<0.05), namely 33.144% and 23.285%, respectively, irrespective of the instrumentation system. In the other regions, there was no difference between K15 and PG regarding this variable. It was concluded that PG was associated with a lower rate of untouched walls in the apical region than K15.

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来源期刊
CiteScore
3.70
自引率
4.00%
发文量
107
审稿时长
12 weeks
期刊最新文献
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