Abstract:
AIM:To compare the effect of 5.25% NaOCl or 17% EDTA solutions on the surface topography and roughness of GTX, TF, RaCe and Hero Shaper instruments using atomic force microscopy (AFM) analysis. METHODOLOGY:Four new files of each brand were subjected to AMF analysis; then each group was subdivided into two subgroups (n = 2) in which instruments were immersed in either 5.25% NaOCl or 17% EDTA solutions for 5 min, thereafter subjected to AFM analysis again. Ra and the RMS values were chosen to investigate the surface features of endodontic files. RESULTS:Before immersion in irrigating solution, TF and Hero Shaper instruments had the significantly highest roughness values and RaCe had the significantly lowest values (P ≤ 0.05). After immersion in NaOCl, GTX and RaCe instruments were not significantly different from the new instruments, nor between them. There was a significant increase in Ra and RMS values for TF and Hero Shaper instruments over that of untreated ones and that of GTX and RaCe instruments. No significant increase in surface roughness of the instruments was recorded with EDTA. CONCLUSION:17% EDTA did not significantly affect the surface roughness of the instruments, whilst 5.25% NaOCl increased the surface roughness of TF and Hero Shaper significantly more than that of RaCe and GTX instruments.
journal_name
Int Endod Jjournal_title
International endodontic journalauthors
Fayyad DM,Mahran AHdoi
10.1111/iej.12189subject
Has Abstractpub_date
2014-06-01 00:00:00pages
567-73issue
6eissn
0143-2885issn
1365-2591journal_volume
47pub_type
杂志文章abstract:AIM:To evaluate the effect of rotational speed and the angle and radius of curvature of root canals on the fracture of two types of nickel-titanium rotary instruments: K3 and ProTaper. METHODOLOGY:A total of 240 root canals of extracted human maxillary and mandibular molars were divided into two groups of 120, accordi...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2003.00630.x
更新日期:2003-04-01 00:00:00
abstract:AIM:The aim of this study was to compare two protocols to examine bacterial colonization in teeth associated with chronic apical periodontitis with acute episodes (ap), using light microscopy (LM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). METHODOLOGY:Nine root samples (seven teeth...
journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
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更新日期:2009-10-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2015-09-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12592
更新日期:2017-01-01 00:00:00
abstract:AIM:To investigate the root form and canal morphology of mandibular first molar teeth in a Taiwan Chinese population. METHODOLOGY:A total of 183 mandibular first molars were collected and examined visually through a dissecting microscope after rendering the teeth transparent. The number of roots, number of canals and ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2009.01619.x
更新日期:2009-11-01 00:00:00
abstract:AIM:To compare the area occupied by gutta-percha, sealer, or void in standardized .06 tapered prepared simulated curved canals and in mesio-buccal canals of extracted maxillary first molars filled with a single .06 gutta-percha point and sealer or lateral condensation of multiple .02 gutta-percha points and sealer. ME...
journal_title:International endodontic journal
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doi:10.1111/j.1365-2591.2004.00903.x
更新日期:2005-02-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2001.00428.x
更新日期:2001-10-01 00:00:00
abstract:AIM:To compare the antibacterial activity of 2-hydroxyisocaproic acid (HICA) with currently used root canal medicaments and to examine their interactions with potential inhibitors in nutrient-deficient and nutrient-rich conditions. METHODOLOGY:First, the antibacterial activity of single concentrations of HICA, calcium...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12465
更新日期:2016-04-01 00:00:00
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journal_title:International endodontic journal
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更新日期:1997-01-01 00:00:00
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更新日期:2020-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/j.1365-2591.2009.01589.x
更新日期:2009-09-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2005.01012.x
更新日期:2005-10-01 00:00:00
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journal_title:International endodontic journal
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更新日期:1994-03-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
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更新日期:2012-01-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
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更新日期:2008-06-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2001-12-01 00:00:00
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更新日期:2021-01-01 00:00:00
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更新日期:1992-07-01 00:00:00
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更新日期:2006-03-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2017-02-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2002-06-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2014-08-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
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更新日期:2004-07-01 00:00:00
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更新日期:2006-11-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
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更新日期:2010-05-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章,评审
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更新日期:2018-08-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2008.01435.x
更新日期:2008-10-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12739
更新日期:2017-12-01 00:00:00