HERO Shaper与Nitiflex根管器械在弯曲根管中预备效果的比较评估
Comparative evaluation of the preparation efficacies of HERO Shaper and Nitiflex root canal instruments in curved root canals.
作者信息
Kaptan Figen, Sert Semih, Kayahan Baybora, Haznedaroğlu Faruk, Tanalp Jale, Bayirli Gündüz
机构信息
Department of Endodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005 Nov;100(5):636-42. doi: 10.1016/j.tripleo.2005.01.013.
OBJECTIVES
To comparatively evaluate the shaping efficacies of HERO Shaper rotary instruments and Nitiflex hand files.
STUDY DESIGN
The mesial roots of 40 mandibular molars were used. In 20 teeth, the mesiobuccal canals were instrumented with HERO Shaper and the mesiolingual canals with Nitiflex. In the remaining 20 teeth, the mesiobuccal canals were instrumented with Nitiflex and the mesiolingual canals with HERO Shaper. Pre- and postoperative sections were obtained from the coronal, middle, and apical portions and analyzed. Statistical analysis was performed using the Student t test.
RESULTS
More dentin was removed from the middle portion with HERO Shaper (P < .05). No statistically significant difference was observed in terms of transportation (P>.05). No instrument fracture or deformation was noted.
CONCLUSIONS
Both HERO Shaper and Nitiflex can be recommended for clinical practice. Further studies can focus on the comparison of HERO Shaper with other rotary instruments as there is an increasing trend for the utilization of these systems.
目的
比较评估HERO Shaper旋转器械和Nitiflex手动锉的根管预备效果。
研究设计
使用40颗下颌磨牙的近中根。在20颗牙齿中，用HERO Shaper预备近中颊根管，用Nitiflex预备近中舌根管。在其余20颗牙齿中，用Nitiflex预备近中颊根管，用HERO Shaper预备近中舌根管。从冠部、中部和根尖部获取术前和术后切片并进行分析。采用学生t检验进行统计学分析。
结果
HERO Shaper从根管中部去除的牙本质更多（P < .05）。在根管偏移方面未观察到统计学显著差异（P > .05）。未发现器械折断或变形。
结论
HERO Shaper和Nitiflex均可推荐用于临床实践。随着这些系统的使用呈上升趋势，进一步的研究可聚焦于HERO Shaper与其他旋转器械的比较。
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