The effects of final irrigants on the push-out bond strength of two calcium silicate-based root canal sealers: an in vitro study.

IF 0.9 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Davut Celik, Ayse Tuba Ozalp Koca, Tugba Kosar, Tamer Tasdemir
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引用次数: 4

Abstract

Purpose: The purpose of the present study was to investigate the effect of the different irrigant combinations used in final irrigation on the push-out bond strength of root canal sealers that have different compositions.

Materials and methods: In total 60 dentinal slices in 1 mm thickness were collected from 15 extracted mandibular premolar teeth; 4 slices from each tooth. 3 canal-like artificial cavities were opened on each dentinal slice. Samples were divided into 4 experimental groups, each of which consisted of 15 samples. In group 1, samples were immersed in 5.25% NaOCl and 17% EDTA solutions respectively; in group 2, immersed in 5.25% NaOCl and 2% CHX solutions respectively; in group 3, immersed in 5.25% NaOCl, 17% EDTA and 2% CHX solutions respectively; and in group 4 immersed in distilled water. After drying with absorbent papers, each cavity in dentinal slice sample was filled with different sealer (Endoseal MTA, Tech Biosealer Endo or AH Plus). Two days later, the push-out bond examination was performed.

Results: AH Plus showed higher push-out bond strength value in two combinations (group 2 and 3) in which final irrigants contained CHX (p<0.001). Dentinal push-out bond strengths of root canal sealers from Endoseal MTA and Tech BioSealer Endo were not affected by final irrigant (p=0.965).

Conclusion: Using CHX after NaOCl in final irrigant increases push-out strength of epoxy resinbased sealer but, did not create any difference in dentinal push-out bond strength of calcium silicate-based sealers.

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最后冲洗剂对两种硅酸钙基根管密封剂推出结合强度的影响:一项体外研究。
目的:本研究的目的是探讨不同的灌洗剂组合在最终灌洗时对不同成分根管封闭剂的推出结合强度的影响。材料与方法:选取15颗拔除的下颌前磨牙,收集60片厚度为1mm的牙质切片;每颗牙齿切4片。在每个牙本质切片上开3个管状人工腔。样本分为4个实验组,每组15个样本。第1组,样品分别浸泡在5.25% NaOCl和17% EDTA溶液中;第2组,分别浸泡在5.25% NaOCl和2% CHX溶液中;第3组,分别浸泡在5.25% NaOCl、17% EDTA和2% CHX溶液中;第4组浸泡在蒸馏水中。用吸湿纸干燥后,用不同的密封剂(Endoseal MTA, Tech Biosealer Endo或AH Plus)填充牙本质切片样品的每个腔。2天后,进行推出粘结检查。结果:末次冲洗剂中含有CHX的两种组合(2组和3组)AH Plus的推出结合强度值更高(p结论:末次冲洗剂中NaOCl后使用CHX可提高环氧树脂基密封剂的推出强度,但对硅酸钙基密封剂的牙本质推出结合强度没有影响。
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来源期刊
European Oral Research
European Oral Research DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
1.60
自引率
0.00%
发文量
23
审稿时长
12 weeks
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