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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Effectiveness of Two Techniques in Removal of Calcium Hydroxide Medicament from Root Canals: An in-vitro Assessment
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Effectiveness of Two Techniques in Removal of Calcium Hydroxide Medicament from Root Canals: An in-vitro Assessment

机译：两种技术从根管中去除氢氧化钙药物的有效性：一项体外评估

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Calcium Hydroxide {Ca(OH)2} is widely used as intracanal medicament. However, complete removal of Ca(OH)2 is very difficult from canal walls resulting in its residues on canal wall which interfere with bonding of sealers and reduce success of root canal treatment.Aim: To compare the effectiveness of two techniques, i.e., wave one and wave one with EndoActivator in removing Ca(OH)2 from the root canals.Materials and Methods: This was an in-vitro study involving 30 extracted single-rooted mandibular premolar bicuspid teeth. Access opening was done followed by biomechanical preparation with ProTaper universal rotary file system (Dentsply, Tulsa Dental Specialities) till F2. Canals were filled with injectable Ca(OH)2 (UltraCal XS, Ultradent Products, INC). The tooth was stored in saline for one week. Then samples were divided into two main groups T1 and T2 (n=15) according to the method of Ca(OH)2 removal. Group 1 (T1): Ca(OH)2 was removed using wave one file alone. Group 2 (T2): Ca(OH)2 was removed using wave one file followed by EndoActivator. Teeth were sectioned buccolingually. The amount of residual Ca(OH)2 was observed and under a stereo microscope (30X magnification) for coronal, middle and apical third. The data were analysed using Mann-Whitney U test to compare between the two techniques, i.e., T1 and T2, taking into consideration p<0.05 as statistically significant.Results: In the coronal third, there was no difference between the two groups (p>0.05). The most efficient Ca(OH)2 removal in apical and middle third was recorded in Group 2 (T2), i.e., Wave one with EndoActivator (p<0.05) as compared to Group 1 (T1) wave one file alone.Conclusion: EndoActivator results in better debridement of root canals when used in combination with different rotary file systems.
机译：氢氧化钙{Ca（OH）2}被广泛用作管内药物。但是，很难从管壁中完全去除Ca（OH）2，导致其在管壁上的残留物干扰密封剂的结合并降低了根管治疗的成功率。目的：为了比较两种技术的有效性，即用EndoActivator进行第一波和第一波从根管中去除Ca（OH）2。材料与方法：这项体外研究涉及30颗拔除的单根下颌前磨牙双尖牙。完成进入操作，然后使用ProTaper通用旋转锉刀系统（Dentsply，塔尔萨牙科特种医院）进行生物力学准备，直至F2。运河中充满了可注射的Ca（OH）2（UltraCal XS，Ultradent Products，INC）。牙齿在盐水中保存了一周。然后根据去除Ca（OH）2的方法将样品分为两个主要组T1和T2（n = 15）。第1组（T1）：仅使用第一批文件除去Ca（OH）2。第2组（T2）：使用Wave 1文件和EndoActivator去除Ca（OH）2。牙齿被颊切开。观察到的残留Ca（OH）2的量，并在立体显微镜下（放大30倍）观察冠状，中部和顶端的三分之一。使用Mann-Whitney U检验分析数据，以比较T1和T2这两种技术，并考虑到p <0.05为有统计学意义。结果：在冠状位第三者中，两者之间没有差异组（p> 0.05）。在第2组（T2）中记录了最有效的根尖和中三分之一的Ca（OH）2去除，即与单独使用第1组（T1）的第一波相比，使用EndoActivator进行的第一波（p <0.05）。结论：与不同的旋转锉刀系统结合使用时，EndoActivator可以更好地清除根管。

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