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使用Mtwo和BioRace旋转锉对根管扩大的评估。

Assessment of root canal enlargement using Mtwo and BioRace rotary files.

作者信息

Cumbo Enzo, Russo Riccardo, Gallina Giuseppe

机构信息

Sezione di Scienze Stomatologiche, Insegnamento di Endodonzia, Università di Palermo, Via del Vespro 123, 90123 Palermo, Italy ; Policlinico Paolo Giaccone, Sezione Scienze Stomatologiche G. Messina, Università di Palermo, Via del Vespro 129, 90100 Palermo, Italy.

Sezione di Scienze Stomatologiche, Università di Palermo, Via del Vespro 123, 90123 Palermo, Italy.

出版信息

ScientificWorldJournal. 2015;2015:859693. doi: 10.1155/2015/859693. Epub 2015 Mar 23.

DOI:10.1155/2015/859693
PMID:25879075
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4386646/
Abstract

OBJECTIVE

To evaluate root canal enlargement following mechanical shaping using 2 nickel titanium rotary systems.

MATERIAL AND METHODS

Forty single-rooted teeth were immersed in resin and sectioned perpendicular to the long axis at 4, 8, and 12 mm from the apex. Digital capture of sections was performed before and after canal instrumentation using Mtwo and BioRace instruments. The area increase of endodontic space was calculated by subtraction.

RESULTS

The use of both instruments has allowed the removal of great amounts of dentin from the canal walls, even when the endodontic morphology is characterized by awkwardness to reach recesses.

CONCLUSIONS

Both procedures seem to be valid and no differences were found between Mtwo and BioRaCe considering the amount of dentin removed at different distances from the apex.

摘要

目的

评估使用两种镍钛旋转系统进行机械预备后根管扩大的情况。

材料与方法

将40颗单根牙浸入树脂中，并在距根尖4、8和12毫米处垂直于长轴进行切片。使用Mtwo和BioRace器械进行根管预备前后对切片进行数字采集。通过减法计算牙髓腔面积的增加量。

结果

即使牙髓形态的特点是难以到达凹陷处，使用这两种器械均能从根管壁去除大量牙本质。

结论

两种操作方法似乎都是有效的，考虑到在距根尖不同距离处去除的牙本质量，Mtwo和BioRaCe之间未发现差异。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9dd/4386646/f0326917bdad/TSWJ2015-859693.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9dd/4386646/d0652b861a4c/TSWJ2015-859693.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9dd/4386646/f0326917bdad/TSWJ2015-859693.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9dd/4386646/d0652b861a4c/TSWJ2015-859693.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9dd/4386646/f0326917bdad/TSWJ2015-859693.002.jpg

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Dentine removal in the coronal portion of root canals following two preparation techniques.两种预备技术后根管冠部牙本质的去除情况。
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A comparison of cyclic fatigue between used and new Mtwo Ni-Ti rotary instruments.
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Int Endod J. 2006 Mar;39(3):203-12. doi: 10.1111/j.1365-2591.2006.01075.x.
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