切割后牙用牙胶尖的扫描电子显微镜研究
Scanning electron microscopy study of dental gutta-percha after cutting.
作者信息
Asgary Saeed, Parirokh Masoud, Eghbal Mohammad Jafar, Ghoddusi Jamileh
机构信息
Department of Endodontics, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Department of Endodontics, Dental School, Kerman University of Medical Sciences, Kerman, Iran.
出版信息
Iran Endod J. 2006 Summer;1(2):57-9. Epub 2006 Jul 1.
INTRODUCTION
The purpose of this study was to evaluate the morphologic surface of gutta-percha cones after cutting with different methods.
MATERIALS AND METHODS
The apical 3 millimeters of forty standardized, gutta-percha cones size 40 were cut off using scissors or a scalpel against a glass slab. The samples were then examined under scanning electron microscopy (SEM) for topographic deformity.
RESULTS
According to results, cutting with scissors produced significant topographic deformity in the standardized gutta-percha cone surface but cutting with sharp surgical instrument against a glass slab allowed the development of a smooth and unmodified gutta-percha cone surface.
CONCLUSION
Results of this study recommended that cutting the tip of a gutta-percha point with a sharp scalpel against a glass slab would produce more reasonable surface morphology than using scissor for the same procedure.
引言
本研究的目的是评估不同方法切割后的牙胶尖的形态表面。
材料与方法
使用剪刀或手术刀在玻璃板上切割40个尺寸为40的标准化牙胶尖的根尖3毫米部分。然后在扫描电子显微镜（SEM）下检查样品的表面变形情况。
结果
根据结果，用剪刀切割会使标准化牙胶尖表面产生明显的表面变形，但用锋利的手术器械在玻璃板上切割能使牙胶尖表面光滑且无改变。
结论
本研究结果表明，用锋利的手术刀在玻璃板上切割牙胶尖的尖端，与使用剪刀进行相同操作相比，会产生更合理的表面形态。
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