新型基于MTA的封闭剂推出粘结强度的评估
Evaluation of push-out bond strength of a new MTA-based sealer.
作者信息
Sönmez I S, Sönmez D, Almaz M E
机构信息
Department of Paedodontics, Faculty of Dentistry, Adnan Menderes University, Aydın, Turkey.
出版信息
Eur Arch Paediatr Dent. 2013 Jun;14(3):161-6. doi: 10.1007/s40368-013-0039-2. Epub 2013 May 4.
AIM
To evaluate the push-out bond strength of MTA Fillapex (Angelus) and compare it with ProRoot MTA (Dentsply) and AH Plus (Dentsply).
DESIGN
Thirty extracted single-rooted teeth were selected and prepared using a rotary system. The samples were divided randomly into three groups (n = 10) and obturated, respectively, with: (1) AH Plus + gutta-percha (DiaDent); (2) MTA Fillapex + gutta-percha; (3) ProRoot MTA. Each root was sectioned into 1-mm-thick slices and 30 samples for each group were obtained. The samples were subjected to push-out test. Failure modes were examined under 30× magnification. The results were analysed statistically by one-way ANOVA and Tukey's test.
RESULTS
Mean push-out bond strength values were ranked as follows: ProRoot MTA > AH Plus > MTA Fillapex. Statistically significant differences were found among all groups (p < 0.05).
CONCLUSION
ProRoot MTA had the highest bond strength, whilst MTA Fillapex displayed the lowest values among the groups.
目的
评估MTA Fillapex（安杰卢斯公司）的推出粘结强度，并将其与ProRoot MTA（登士柏公司）和AH Plus（登士柏公司）进行比较。
设计
选取30颗拔除的单根牙，使用旋转系统进行预备。将样本随机分为三组（n = 10），分别用以下材料进行根管充填：（1）AH Plus + 牙胶尖（迪亚登特公司）；（2）MTA Fillapex + 牙胶尖；（3）ProRoot MTA。将每颗牙根切成1毫米厚的薄片，每组获得30个样本。对样本进行推出试验。在30倍放大倍数下检查失败模式。结果采用单因素方差分析和Tukey检验进行统计学分析。
结果
平均推出粘结强度值排序如下：ProRoot MTA > AH Plus > MTA Fillapex。所有组之间均存在统计学显著差异（p < 0.05）。
结论
ProRoot MTA的粘结强度最高，而MTA Fillapex在各组中显示出最低的值。
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