A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro study

Aim : The aim of the study was to evaluate and compare the efficacy of commercially available three bleaching agents when used internally or by internal-external method in non-vital teeth. Materials and Methods: Seventy extracted single-rooted premolars were artificially stained with whole blood in...

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Main Authors: Rakesh Mittal, Ashima Garg Sood, Meenu G Singla, Devika Dhawan
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=1;spage=33;epage=37;aulast=Mittal
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author Rakesh Mittal
Ashima Garg Sood
Meenu G Singla
Devika Dhawan
author_facet Rakesh Mittal
Ashima Garg Sood
Meenu G Singla
Devika Dhawan
author_sort Rakesh Mittal
collection DOAJ
description Aim : The aim of the study was to evaluate and compare the efficacy of commercially available three bleaching agents when used internally or by internal-external method in non-vital teeth. Materials and Methods: Seventy extracted single-rooted premolars were artificially stained with whole blood in centrifugal machine. Teeth were divided into six experimental groups (Group I-VI) and one control group (Group VII). Bleaching was carried out in all the experimental groups using either of three commercially available bleaching agents: In Group I and group IV, 35% carbamide peroxide was used. In group II and V, 21% carbamide peroxide was used. Teeth in Group III and VI were bleached using 35% hydrogen peroxide (H 2 O 2 ). In the first three experimental groups (Group I, II, III), internal bleaching was done and in other three groups (Group IV, V, VI), both internal and external application was done. The evaluation was done at 0, 7, and 14 days using VITA shade guide. Statistical Analysis: The results obtained were statistically analyzed using ANOVA, Paired t-test, and ANOVA with post hoc Tukey′s modification to evaluate the significant change and efficacy of the groups tested. Results: All bleaching agents showed effective shade reduction. The effects of 35% H 2 O 2 and 35% carbamide peroxide were statistically similar. The least reduction was seen with 21% carbamide peroxide groups. There was no difference between internal bleaching and internal-external methods. Conclusions: Within the limitation of the study, it could be concluded that 35% carbamide peroxide is an effective intracoronal bleaching agent similar to that of 35% H 2 O 2 .
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spelling doaj.art-8908e23089204ceaa026b8ad952d012e2022-12-22T01:54:44ZengWolters Kluwer Medknow PublicationsSaudi Endodontic Journal2320-14952015-01-0151333710.4103/1658-5984.149084A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro studyRakesh MittalAshima Garg SoodMeenu G SinglaDevika DhawanAim : The aim of the study was to evaluate and compare the efficacy of commercially available three bleaching agents when used internally or by internal-external method in non-vital teeth. Materials and Methods: Seventy extracted single-rooted premolars were artificially stained with whole blood in centrifugal machine. Teeth were divided into six experimental groups (Group I-VI) and one control group (Group VII). Bleaching was carried out in all the experimental groups using either of three commercially available bleaching agents: In Group I and group IV, 35% carbamide peroxide was used. In group II and V, 21% carbamide peroxide was used. Teeth in Group III and VI were bleached using 35% hydrogen peroxide (H 2 O 2 ). In the first three experimental groups (Group I, II, III), internal bleaching was done and in other three groups (Group IV, V, VI), both internal and external application was done. The evaluation was done at 0, 7, and 14 days using VITA shade guide. Statistical Analysis: The results obtained were statistically analyzed using ANOVA, Paired t-test, and ANOVA with post hoc Tukey′s modification to evaluate the significant change and efficacy of the groups tested. Results: All bleaching agents showed effective shade reduction. The effects of 35% H 2 O 2 and 35% carbamide peroxide were statistically similar. The least reduction was seen with 21% carbamide peroxide groups. There was no difference between internal bleaching and internal-external methods. Conclusions: Within the limitation of the study, it could be concluded that 35% carbamide peroxide is an effective intracoronal bleaching agent similar to that of 35% H 2 O 2 .http://www.saudiendodj.com//article.asp?issn=1658-5984;year=2015;volume=5;issue=1;spage=33;epage=37;aulast=MittalCarbamide peroxidehydrogen peroxideintracoronal bleaching
spellingShingle Rakesh Mittal
Ashima Garg Sood
Meenu G Singla
Devika Dhawan
A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro study
Saudi Endodontic Journal
Carbamide peroxide
hydrogen peroxide
intracoronal bleaching
title A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro study
title_full A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro study
title_fullStr A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro study
title_full_unstemmed A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro study
title_short A comparative evaluation of efficacy of commercially available bleaching agents in non-vital teeth: An in vitro study
title_sort comparative evaluation of efficacy of commercially available bleaching agents in non vital teeth an in vitro study
topic Carbamide peroxide
hydrogen peroxide
intracoronal bleaching
url http://www.saudiendodj.com//article.asp?issn=1658-5984;year=2015;volume=5;issue=1;spage=33;epage=37;aulast=Mittal
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