micro-computed tomography and bond strength analysis of different root canal filling techniques

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ID: 248456
2014
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Ranked #61 of 150 articles by views in Applied and environmental microbiology

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摘要
Introduction: The aim of this study was to evaluate the quality and bond strength of three root filling techniques (lateral compaction, continuous wave of condensation and Tagger′s Hybrid technique [THT]) using micro-computed tomography (CT) images and push-out tests, respectively. Materials and Methods: Thirty mandibular incisors were prepared using the same protocol and randomly divided into three groups (n = 10): Lateral condensation technique (LCT), continuous wave of condensation technique (CWCT), and THT. All specimens were filled with Gutta-percha (GP) cones and AH Plus sealer. Five specimens of each group were randomly chosen for micro-CT analysis and all of them were sectioned into 1 mm slices and subjected to push-out tests. Results: Micro-CT analysis revealed less empty spaces when GP was heated within the root canals in CWCT and THT when compared to LCT. Push-out tests showed that LCT and THT had a significantly higher displacement resistance (P < 0.05) when compared to the CWCT. Bond strength was lower in apical and middle thirds than in the coronal thirds. Conclusions: It can be concluded that LCT and THT were associated with higher bond strengths to intraradicular dentine than CWCT. However, LCT was associated with more empty voids than the other techniques.
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nhata2014indianmicro-computed 使用此键在稿件中自动引用，同时使用 SciMatic 稿件管理器或论文管理器
作者 Juliane Nhata, Ricardo Machado, Luiz Pascoal Vansan, Antonio Batista, Gilson Sidney, Tiago Pereira Rosa, Emmanuel João Nogueira Leal Silva
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期刊 Applied and environmental microbiology
年份 2014
DOI
10.4103/0970-9290.152164
URL
http://www.ijdr.in/article.asp?issn=0970-9290;year=2014;volume=25;issue=6;spage=698;epage=701;aulast=Nhata
关键词
endodontics bonding

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