Ari Hale, Belli Sema, Gunes Betul
Selcuk University, Faculty of Dentistry, Department of Endodontics, Konya, Turkey.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Jun;109(6):e113-6. doi: 10.1016/j.tripleo.2010.02.016.
The objective of this study was to evaluate the apical sealing ability of Hybrid Root SEAL (MetaSEAL) in conjunction with different obturation techniques.
Sixty-eight extracted human mandibular straight single-rooted teeth with mature apices were prepared using a step-back technique and divided into 4 experimental groups (n = 15). An additional 8 teeth were prepared for controls (3 for positive, 3 for negative control, and 2 more for calculating 100% leakage). The experimental groups were obturated with Hybrid Root SEAL (MetaSEAL) using cold lateral condensation, vertical condensation, Thermafil, and Ultrafil techniques. Fluid movement along the filled canals was measured using a fluid filtration method. Measurements were made at 2-minute intervals for 8 minutes. The data were calculated as microL/min and statistically analyzed using 1-way ANOVA and Duncan Test.
Cold lateral and vertical condensation had significantly less fluid movement than the Thermafil and Ultrafil groups. Thermafil group had the highest fluid movement values when compared with the other groups (P < .01).
Hybrid Root SEAL (MetaSEAL) had less fluid movement with cold lateral and vertical condensation techniques when compared with Thermafil and Ultrafil techniques.
本研究的目的是评估Hybrid Root SEAL（MetaSEAL）与不同充填技术联合使用时的根尖封闭能力。
采用逐步后退技术对68颗根尖成熟的拔除人下颌直单根牙进行预备，并分为4个实验组（n = 15）。另外准备8颗牙齿作为对照（3颗用于阳性对照，3颗用于阴性对照，另外2颗用于计算100%渗漏）。实验组分别采用冷侧方加压、垂直加压、Thermafil和Ultrafil技术用Hybrid Root SEAL（MetaSEAL）进行充填。采用流体过滤法测量沿充填根管的液体移动。每隔2分钟测量一次，共测量8分钟。数据以微升/分钟计算，并使用单因素方差分析和邓肯检验进行统计学分析。
冷侧方加压和垂直加压组的液体移动明显少于Thermafil组和Ultrafil组。与其他组相比，Thermafil组的液体移动值最高（P <.01）。
与Thermafil和Ultrafil技术相比，Hybrid Root SEAL（MetaSEAL）在冷侧方加压和垂直加压技术下的液体移动较少。
