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J Endod:XP-endo Shaper和ProTaper Next在大根管中成形能力的CBCT分析

2020-01-24 lishiting MedSci原创

这篇研究的目的是通过CBCT影像观察和比较XPS (XP-endo Shaper)和PTN (ProTaper Next)系统在预设不同根尖尺寸大根管的根尖、中和冠1/3的成形能力。

这篇研究的目的是通过CBCT影像观察和比较XPS (XP-endo Shaper)和PTN (ProTaper Next)系统在预设不同根尖尺寸大根管的根尖、中和冠1/3的成形能力。

研究将72颗单根管牙齿分为3组,通过手用锉创建根尖尺寸分别为#30 (Group 1), #35 (Group 2)或#40 (Group 3)的大根管。每组再分为2个实验组,根管分别通过XPS或PTN进行预备。通过CBCT在预备前后扫描根管,观察和评估距离根尖孔2, 5和8 mm处的近远中向偏移、颊舌向偏移、定心率、增加的预备区域百分比(PA) (mm2)和增加的预备轮廓百分比(PO) (mm)。所得数据进行统计学分析,显著性水平设置为P < .05。

结果显示,器械预备至30和35号时,2者的PA, PO和定心率值之间未见显著性差异。XPS在预备至40号时,PA和PO显著增高(P < .021)。PTN在预备至30和35号时,颊舌向偏移明显增加。XPS在所有3个根尖尺寸均具有较低的近远中向偏移值。

结论:PTN系统即使在根尖直径增加的情况下依旧能够去除牙本质。然而,XPS比PTN具有更佳的定心率并且根管偏移更少。

原始出处:

Arıcan Öztürk B, Atav Ateş A, et al. Cone-Beam Computed Tomographic Analysis of Shaping Ability of XP-endo Shaper and ProTaper Next in Large Root Canals. J Endod. 2020 Jan 3. pii: S0099-2399(19)30919-7. doi: 10.1016/j.joen.2019.11.014.

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    2020-08-31 feather89
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    2020-01-26 智慧医人
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    2020-01-26 sunylz

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