伊朗人群单根下颌尖牙的根管形态：一项体外研究
Root Canal Configuration of One-rooted Mandibular Canine in an Iranian Population: An In Vitro Study.
作者信息
Bakianian Vaziri Pejman, Kasraee Shahin, Abdolsamadi Hamid Reza, Abdollahzadeh Shermin, Esmaeili Farzad, Nazari Shahrzad, Vahedi Mohammad
机构信息
Assistant Professor, Department of Oral Medicine, Faculty of Dentistry, Hamadan University of Medical Sciences, Iran.
出版信息
J Dent Res Dent Clin Dent Prospects. 2008 Winter;2(1):28-32. doi: 10.5681/joddd.2008.006. Epub 2008 May 15.
BACKGROUND AND AIMS
A perfect endodontic treatment necessitates proper understanding of the morphology of canal and pulpal variations. This in vitro study was conducted to demonstrate the in-ternal anatomy of mandibular canine teeth in an Iranian population.
MATERIALS AND METHODS
The samples consisted of 100 extracted mandibular permanent canines. The roots of the teeth were molded in acrylic boxes. The crowns of the teeth were cut and 2 mm cross sections were made from CEJ to the apex. Sections were examined using stereomicroscope to reveal the number and location of root canals.
RESULTS
From 100 evaluated teeth, 12 (12%) had 2 canals from which 5 had type II canal configu-ration and 7 (7%) had type III. 88% of the specimens had one canal and none were seen to be of type IV.
CONCLUSION
The findings of this study emphasize the importance of dentist's knowledge of varia-tions in root canal morphology, since leaving a canal untreated is one of the main reasons of endodontic failures. When treating mandibular canines, the existence of a second canal should be taken into consideration.
背景与目的
完美的牙髓治疗需要正确了解根管形态和牙髓变异情况。本体外研究旨在展示伊朗人群下颌尖牙的内部解剖结构。
材料与方法
样本包括100颗拔除的下颌恒尖牙。将牙根铸模于丙烯酸盒中。切除牙冠，从牙颈缘至根尖制作2毫米厚的切片。使用体视显微镜检查切片，以揭示根管的数量和位置。
结果
在100颗评估牙齿中，12颗（12%）有2个根管，其中5颗为II型根管形态，7颗（7%）为III型。88%的标本有1个根管，未发现IV型根管。
结论
本研究结果强调了牙医了解根管形态变异的重要性，因为遗漏未治疗的根管是牙髓治疗失败的主要原因之一。治疗下颌尖牙时，应考虑第二根管的存在。
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