Moradi Saeed, Disfani Reza, Ghazvini Kiarash, Lomee Mahdi
Department of Endodontics, Dental Materials Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Iran Endod J. 2013 Summer;8(3):109-13. Epub 2013 Aug 1.
The aim of this in vitro study was to determine the sealing ability of orthograde ProRoot mineral trioxide aggregate (MTA) and calcium enriched mixture (CEM) cement as root-end filling materials.
Fifty four extracted single-rooted human teeth were used. The samples were randomly divided into 3 experimental groups. In group A and B, 4 mm of WMTA and CEM cement were placed in an orthograde manner and 3 mm of apices were resected after 24 hours. In group C the apical 3 mm of each root was resected and the root-end prepared with ultrasonic tips to a depth of 3 mm and subsequently, then filled with MTA. The apical sealing ability was performed with bacterial leakage method. Statistical analysis was carried out with Chi-square test.
There were no significant differences in the extent of bacterial leakage between the three experimental groups (P>0.05).
Based on the limitations of this in vitro study, we concluded that MTA and CEM cement can be placed in an orthograde manner when there is a potential need for root-end surgery.
本体外研究的目的是确定正位充填时,ProRoot 三氧化矿物凝聚体(MTA)和富钙混合物(CEM)水泥作为根尖充填材料的封闭能力。
使用了 54 颗拔除的单根人牙。样本随机分为 3 个实验组。在 A 组和 B 组中,以正位方式放置 4 mm 的白色 MTA 和 CEM 水泥,24 小时后切除 3 mm 的根尖。在 C 组中,切除每个牙根根尖 3 mm,并用超声尖制备根尖至 3 mm 深度,随后用 MTA 充填。采用细菌渗漏法评估根尖封闭能力。使用卡方检验进行统计分析。
三个实验组之间的细菌渗漏程度无显著差异(P>0.05)。
基于本体外研究的局限性,我们得出结论,当有根尖手术的潜在需求时,MTA 和 CEM 水泥可以正位方式放置。