Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without Thermocycling

Introduction: The aim of this study was to compare the microleakage of beneath the orthodontic brackets bonded with 3 different bonding techniques and evaluate the effect of thermocycling. Methods: One hundred and twenty premolars were randomly divided into 6 groups, received the following treatment...

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Main Authors: Berahman Sabzevari, Barat Ali Ramazanzadeh, Saied Mostafa Moazzami, Armin Sharifi
Format: Article
Language:English
Published: Mashhad University of Medical Sciences 2013-12-01
Series:Journal of Dental Materials and Techniques
Subjects:
Online Access:http://jdmt.mums.ac.ir/?_action=showPDF&article=151&_ob=49a3e99d96e7596f3caf8a5b43db4f51&fileName=full_text.pdf
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author Berahman Sabzevari
Barat Ali Ramazanzadeh
Saied Mostafa Moazzami
Armin Sharifi
author_facet Berahman Sabzevari
Barat Ali Ramazanzadeh
Saied Mostafa Moazzami
Armin Sharifi
author_sort Berahman Sabzevari
collection DOAJ
description Introduction: The aim of this study was to compare the microleakage of beneath the orthodontic brackets bonded with 3 different bonding techniques and evaluate the effect of thermocycling. Methods: One hundred and twenty premolars were randomly divided into 6 groups, received the following treatment: group 1: 37% phosphoric acid gel+Unite primer+Unite adhesive, group 2: 37% phosphoric acid gel+ Transbond XT primer+Transbond XT adhesive, group 3: Transbond plus Self Etching Primer (TSEP)+Transbond XT adhesive. Groups 4, 5, and 6 were similar to groups 1, 2, and 3, respectively. Evaluation of microleakage was done following to thermocycling test. After bonding, the specimens were sealed with nail varnish except for 1 mm around the brackets and then stained with 0.5% basic fuchsine. The specimens were sectioned at buccolingual direction in 2 parallel planes and evaluated under a stereomicroscope to determine the amount of microleakage at bracket-adhesive and adhesive-enamel interfaces from gingival and occlusal margins. Results: Microleakage was observed in all groups, and increased significantly after thermocycling at some interfaces of Unite adhesive group and conventional etching+Transbond XT adhesive group, but the increase was not significant in any interface of TSEP group. With or without thermocycling, TSEP displayed more microleakage than other groups. In most groups, microleakage at gingival margin was significantly higher than occlusal margin. Conclusion: Thermocycling and type of bonding technique significantly affect the amount of microleakage.
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spelling doaj.art-09ada1ee0eb946d4ba65a7f3748af5f32022-12-21T17:48:51ZengMashhad University of Medical SciencesJournal of Dental Materials and Techniques2322-41502252-03172013-12-01212128Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without ThermocyclingBerahman SabzevariBarat Ali RamazanzadehSaied Mostafa MoazzamiArmin SharifiIntroduction: The aim of this study was to compare the microleakage of beneath the orthodontic brackets bonded with 3 different bonding techniques and evaluate the effect of thermocycling. Methods: One hundred and twenty premolars were randomly divided into 6 groups, received the following treatment: group 1: 37% phosphoric acid gel+Unite primer+Unite adhesive, group 2: 37% phosphoric acid gel+ Transbond XT primer+Transbond XT adhesive, group 3: Transbond plus Self Etching Primer (TSEP)+Transbond XT adhesive. Groups 4, 5, and 6 were similar to groups 1, 2, and 3, respectively. Evaluation of microleakage was done following to thermocycling test. After bonding, the specimens were sealed with nail varnish except for 1 mm around the brackets and then stained with 0.5% basic fuchsine. The specimens were sectioned at buccolingual direction in 2 parallel planes and evaluated under a stereomicroscope to determine the amount of microleakage at bracket-adhesive and adhesive-enamel interfaces from gingival and occlusal margins. Results: Microleakage was observed in all groups, and increased significantly after thermocycling at some interfaces of Unite adhesive group and conventional etching+Transbond XT adhesive group, but the increase was not significant in any interface of TSEP group. With or without thermocycling, TSEP displayed more microleakage than other groups. In most groups, microleakage at gingival margin was significantly higher than occlusal margin. Conclusion: Thermocycling and type of bonding technique significantly affect the amount of microleakage.http://jdmt.mums.ac.ir/?_action=showPDF&article=151&_ob=49a3e99d96e7596f3caf8a5b43db4f51&fileName=full_text.pdfAdhesivemicroleakageorthodontic bracketthermocyclin
spellingShingle Berahman Sabzevari
Barat Ali Ramazanzadeh
Saied Mostafa Moazzami
Armin Sharifi
Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without Thermocycling
Journal of Dental Materials and Techniques
Adhesive
microleakage
orthodontic bracket
thermocyclin
title Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without Thermocycling
title_full Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without Thermocycling
title_fullStr Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without Thermocycling
title_full_unstemmed Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without Thermocycling
title_short Microleakage under Orthodontic Metal Brackets Bonded with Three Different Bonding Techniques with/without Thermocycling
title_sort microleakage under orthodontic metal brackets bonded with three different bonding techniques with without thermocycling
topic Adhesive
microleakage
orthodontic bracket
thermocyclin
url http://jdmt.mums.ac.ir/?_action=showPDF&article=151&_ob=49a3e99d96e7596f3caf8a5b43db4f51&fileName=full_text.pdf
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AT saiedmostafamoazzami microleakageunderorthodonticmetalbracketsbondedwiththreedifferentbondingtechniqueswithwithoutthermocycling
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