The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals

Aim: To evaluate the effectiveness of various chelates used alone or in combination with sodium hypochlorite (NaOCl) in the removal of calcium hydroxide (Ca(OH)2 ) from root canals. Materials and Methods: The root canals of 72 mandibular incisors were prepared up to the ProTaper F2 file. Among thes...

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Main Authors: Emel Uzunoglu, Sevinc Aktemur Turker, Bahar Ozcelik
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2015-01-01
Series:Saudi Endodontic Journal
Subjects:
Online Access:http://www.saudiendodj.com//article.asp?issn=1658-5984;year=2015;volume=5;issue=3;spage=161;epage=165;aulast=Uzunoglu
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author Emel Uzunoglu
Sevinc Aktemur Turker
Bahar Ozcelik
author_facet Emel Uzunoglu
Sevinc Aktemur Turker
Bahar Ozcelik
author_sort Emel Uzunoglu
collection DOAJ
description Aim: To evaluate the effectiveness of various chelates used alone or in combination with sodium hypochlorite (NaOCl) in the removal of calcium hydroxide (Ca(OH)2 ) from root canals. Materials and Methods: The root canals of 72 mandibular incisors were prepared up to the ProTaper F2 file. Among these, six randomly selected teeth were used as negative and positive controls, while the root canals of the remaining 66 were filled with Ca(OH)2 paste for 1 week. Then, the experimental group specimens were divided into six groups (n = 11). The access cavities were reopened and the Ca(OH)2 paste in each group was removed using the following solutions: 2.5 mL ethylenediaminetetraacetic acid (EDTA; Group 1), 2.5 mL peracetic acid (PAA; Group 2), 2.5 mL QMix (Group 3), 2.5 mL NaOCl/2.5 mL EDTA (Group 4), 2.5 mL NaOCl/2.5 mL PAA (Group 5), and 2.5 mL NaOCl/2.5 mL QMix (Group 6). Digital photographs of longitudinally split specimens were imported into image analyzer software, and the amount of residual Ca (OH) 2 was recorded as a percentage of the overall canal surface area. The results were analyzed using Kruskal–Wallis and Conover–Dunn tests. Results: The canal walls in the positive control group were completely covered with Ca(OH) 2 compared with those in the negative control group. The lowest Ca(OH)2 removal efficiency was observed for Group 4 (P < 0.001), while Group 6 showed favorable results (P < 0.05). Conclusions: QMix combined with NaOCl can remove Ca(OH)2 from root canals as effectively as 17% EDTA and 1% PAA. The type and sequence of irrigants are more important than the total irrigant volume for effective Ca(OH) 2 removal.
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spelling doaj.art-47ff3750b14f40649c5a4d7683fba8762022-12-22T02:35:36ZengWolters Kluwer Medknow PublicationsSaudi Endodontic Journal2320-14952015-01-015316116510.4103/1658-5984.163626The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canalsEmel UzunogluSevinc Aktemur TurkerBahar OzcelikAim: To evaluate the effectiveness of various chelates used alone or in combination with sodium hypochlorite (NaOCl) in the removal of calcium hydroxide (Ca(OH)2 ) from root canals. Materials and Methods: The root canals of 72 mandibular incisors were prepared up to the ProTaper F2 file. Among these, six randomly selected teeth were used as negative and positive controls, while the root canals of the remaining 66 were filled with Ca(OH)2 paste for 1 week. Then, the experimental group specimens were divided into six groups (n = 11). The access cavities were reopened and the Ca(OH)2 paste in each group was removed using the following solutions: 2.5 mL ethylenediaminetetraacetic acid (EDTA; Group 1), 2.5 mL peracetic acid (PAA; Group 2), 2.5 mL QMix (Group 3), 2.5 mL NaOCl/2.5 mL EDTA (Group 4), 2.5 mL NaOCl/2.5 mL PAA (Group 5), and 2.5 mL NaOCl/2.5 mL QMix (Group 6). Digital photographs of longitudinally split specimens were imported into image analyzer software, and the amount of residual Ca (OH) 2 was recorded as a percentage of the overall canal surface area. The results were analyzed using Kruskal–Wallis and Conover–Dunn tests. Results: The canal walls in the positive control group were completely covered with Ca(OH) 2 compared with those in the negative control group. The lowest Ca(OH)2 removal efficiency was observed for Group 4 (P < 0.001), while Group 6 showed favorable results (P < 0.05). Conclusions: QMix combined with NaOCl can remove Ca(OH)2 from root canals as effectively as 17% EDTA and 1% PAA. The type and sequence of irrigants are more important than the total irrigant volume for effective Ca(OH) 2 removal.http://www.saudiendodj.com//article.asp?issn=1658-5984;year=2015;volume=5;issue=3;spage=161;epage=165;aulast=UzunogluCalcium hydroxideethylenediamine tetraacetic acidintracanal dressingperacetic acidQMixroot canal irrigation
spellingShingle Emel Uzunoglu
Sevinc Aktemur Turker
Bahar Ozcelik
The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals
Saudi Endodontic Journal
Calcium hydroxide
ethylenediamine tetraacetic acid
intracanal dressing
peracetic acid
QMix
root canal irrigation
title The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals
title_full The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals
title_fullStr The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals
title_full_unstemmed The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals
title_short The effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals
title_sort effectiveness of various chelates used alone or in combination with sodium hypochlorite in the removal of calcium hydroxide from root canals
topic Calcium hydroxide
ethylenediamine tetraacetic acid
intracanal dressing
peracetic acid
QMix
root canal irrigation
url http://www.saudiendodj.com//article.asp?issn=1658-5984;year=2015;volume=5;issue=3;spage=161;epage=165;aulast=Uzunoglu
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