Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati

Aesthetic appearance of fixed orthodontic appliance and good mechanical performance of orthodontic adhesive-bracket system are primary concerns of orthodontic patients. The objectives of this study were to investigate the effect of orthodontic adhesives and time of storage on tensile bond strength (...

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Main Author:	Mohamed Al-Towati, Zeinab Masaud
Format:	Thesis
Language:	English
Published:	2011
Subjects:	Oral and dental medicine Pathology Diseases Orthodontics
Online Access:	https://ir.uitm.edu.my/id/eprint/54164/1/54164.pdf
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spelling	my-uitm-ir.541642022-01-04T05:51:59Z Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati 2011 Mohamed Al-Towati, Zeinab Masaud Oral and dental medicine. Pathology. Diseases Orthodontics Aesthetic appearance of fixed orthodontic appliance and good mechanical performance of orthodontic adhesive-bracket system are primary concerns of orthodontic patients. The objectives of this study were to investigate the effect of orthodontic adhesives and time of storage on tensile bond strength (TBS) of the brackets. A total of 240-exrtacted bovine teeth were collected and divided into 24- goups with each group was bonded with stainless steel, monocrystalline, polycrystalline and polyurethane brackets using two different orthodontic adhesives (Transbond XT™ and Aegis™). The samples were stored in distilled water for 1 day (Tl), 1 week (T2) and 1 month (T3) before tested for TBS using universal testing machine. Scanning electron microscope (SEM) was used to study the enamel roughness, assess the adhesive remnant index (ARI) and identify the type of failure between different samples of two types of composites. Data collected were analyzed using two-way ANOVA. Results showed that monocrystalline ceramic brackets had the highest values of tensile bond strength after the three different times of water storage (Tl, T2'and T3) irrespective of adhesive used while polyurethane brackets were the lowest. The TBS of the brackets cemented with Transbond XT™ significantly increased with time of water storage while Aegis™ decreases. SEM results of ARI were significantly different between Transbond XT™ and Aegis™ with respect to the amount of composite material that remained on the tooth surface. This study concluded that the tensile bond strengths of ceramic brackets bonded with Transbond XT™ and Aegis™ were higher than that of stainless steel and polyurethane. The tensile bond strength of bracket bonded with amorphous calcium phosphate composite (Aegis™) was within the acceptable range of 2.9 - 10 MPa that could improve the high bond strength of ceramic brackets. The tensile bond strength of Transbond XT™ increased with the time of water storage from one day to one month. Tensile bond strength of bracket cemented with Aegis™ decreased with time of water storage. 2011 Thesis https://ir.uitm.edu.my/id/eprint/54164/ https://ir.uitm.edu.my/id/eprint/54164/1/54164.pdf text en public masters Universiti Teknologi MARA Faculty of Dentistry
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Oral and dental medicine Pathology Diseases Orthodontics
spellingShingle	Oral and dental medicine Pathology Diseases Orthodontics Mohamed Al-Towati, Zeinab Masaud Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati
description	Aesthetic appearance of fixed orthodontic appliance and good mechanical performance of orthodontic adhesive-bracket system are primary concerns of orthodontic patients. The objectives of this study were to investigate the effect of orthodontic adhesives and time of storage on tensile bond strength (TBS) of the brackets. A total of 240-exrtacted bovine teeth were collected and divided into 24- goups with each group was bonded with stainless steel, monocrystalline, polycrystalline and polyurethane brackets using two different orthodontic adhesives (Transbond XT™ and Aegis™). The samples were stored in distilled water for 1 day (Tl), 1 week (T2) and 1 month (T3) before tested for TBS using universal testing machine. Scanning electron microscope (SEM) was used to study the enamel roughness, assess the adhesive remnant index (ARI) and identify the type of failure between different samples of two types of composites. Data collected were analyzed using two-way ANOVA. Results showed that monocrystalline ceramic brackets had the highest values of tensile bond strength after the three different times of water storage (Tl, T2'and T3) irrespective of adhesive used while polyurethane brackets were the lowest. The TBS of the brackets cemented with Transbond XT™ significantly increased with time of water storage while Aegis™ decreases. SEM results of ARI were significantly different between Transbond XT™ and Aegis™ with respect to the amount of composite material that remained on the tooth surface. This study concluded that the tensile bond strengths of ceramic brackets bonded with Transbond XT™ and Aegis™ were higher than that of stainless steel and polyurethane. The tensile bond strength of bracket bonded with amorphous calcium phosphate composite (Aegis™) was within the acceptable range of 2.9 - 10 MPa that could improve the high bond strength of ceramic brackets. The tensile bond strength of Transbond XT™ increased with the time of water storage from one day to one month. Tensile bond strength of bracket cemented with Aegis™ decreased with time of water storage.
format	Thesis
qualification_level	Master's degree
author	Mohamed Al-Towati, Zeinab Masaud
author_facet	Mohamed Al-Towati, Zeinab Masaud
author_sort	Mohamed Al-Towati, Zeinab Masaud
title	Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati
title_short	Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati
title_full	Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati
title_fullStr	Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati
title_full_unstemmed	Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati
title_sort	effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / zeinab masaud mohamed al-towati
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Dentistry
publishDate	2011
url	https://ir.uitm.edu.my/id/eprint/54164/1/54164.pdf
_version_	1783734887469023232

Effect of different orthodontic adhesives on tensile bond strength of aesthetic orthodontic brackets / Zeinab Masaud Mohamed Al-Towati

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