Abstract:
AIM:To evaluate the performance of XP-endo Finisher R instruments when removing root filling remnants from oval-shaped canals using microcomputed tomographic (micro-CT) imaging as the analytical tool. Passive ultrasonic irrigation (PUI) was used as a reference technique for comparison. METHODOLOGY:Twenty mandibular incisors with oval-shaped canals were matched based on similar anatomic features of the canal (volume, aspect ratio and 3D configuration) after scanning procedures. The canals were prepared with Reciproc R25 instruments, filled with gutta-percha and AH Plus sealer using the single-cone technique and retreated up to a Reciproc R40 instrument. After retreatment procedures, the specimens were rescanned, and the homogeneity between the specimens, the oval-shaped anatomy and the remaining filling material were confirmed. The pair-matched samples were assigned to two experimental groups (n = 10), according to the supplementary approach used: XP-endo Finisher R or PUI. Each sample was scanned after each endodontic procedure. The volume of remaining root filling material was quantified before and after the use of each supplementary approach. This analysis was performed considering the total canal (Student t-test) and also by thirds (anova procedure followed by a Bonferroni correction). Data were analysed statistically with a significance level of 5%. RESULTS:The volume of root filling material at baseline was similar between the groups (t-test, P = 0.787). XP-endo Finisher R removed significantly more root filling material compared to PUI (t-test, P = 0.015), as it removed a mean of ≅32% material compared to 12% for the PUI. There was no difference in the amount of root filling material removed in the root canal thirds after using both supplementary approaches (one-way anova, P = 0.07 for XP-endo Finisher R and P = 0.886 for PUI). CONCLUSIONS:Both supplementary approaches significantly reduced the volume of remaining root filling material from oval-shaped canals. The XP-endo Finisher R instrument removed significantly more root filling material than PUI. None of the supplementary approaches was able to render oval-shaped canals completely free from remaining root filling material.
journal_name
Int Endod Jjournal_title
International endodontic journalauthors
De-Deus G,Belladonna FG,Zuolo AS,Cavalcante DM,Carvalhal JCA,Simões-Carvalho M,Souza EM,Lopes RT,Silva EJNLdoi
10.1111/iej.13077subject
Has Abstractpub_date
2019-06-01 00:00:00pages
899-907issue
6eissn
0143-2885issn
1365-2591journal_volume
52pub_type
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journal_title:International endodontic journal
pub_type: 杂志文章
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更新日期:2007-06-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2007-09-01 00:00:00
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journal_title:International endodontic journal
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pub_type: 杂志文章
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更新日期:1989-11-01 00:00:00
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更新日期:2013-02-01 00:00:00
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更新日期:2018-06-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2005.00982.x
更新日期:2005-08-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.1999.00180.x
更新日期:1999-01-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00255.x
更新日期:1994-07-01 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:2009-11-01 00:00:00
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更新日期:2006-04-01 00:00:00
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更新日期:2009-10-01 00:00:00
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pub_type: 杂志文章
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更新日期:2002-07-01 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:1989-05-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2012-08-01 00:00:00
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pub_type: 杂志文章
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更新日期:2015-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2016-06-01 00:00:00
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