In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system

December 2011. A thesis submitted to the College of Dental Medicine of Nova Southeastern University of the degree of Master of Science in Dentistry. Introduction: The purpose of this study is to compare the shear bond strengths (SBSs) of two new commercial adhesive systems to a conventional multiste...

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Main Author: Mazzarella, Jennifer
Format: Others
Published: NSUWorks 2011
Subjects:
Online Access:https://nsuworks.nova.edu/hpd_cdm_stuetd/32
https://nsuworks.nova.edu/cgi/viewcontent.cgi?article=1044&context=hpd_cdm_stuetd
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spelling ndltd-nova.edu-oai-nsuworks.nova.edu-hpd_cdm_stuetd-10442019-10-20T04:14:57Z In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system Mazzarella, Jennifer December 2011. A thesis submitted to the College of Dental Medicine of Nova Southeastern University of the degree of Master of Science in Dentistry. Introduction: The purpose of this study is to compare the shear bond strengths (SBSs) of two new commercial adhesive systems to a conventional multistep bonding system incorporating a 35% phosphoric acid gel. In addition, the amount of adhesive remaining on each tooth following debonding will be analyzed and compared using the adhesive remnant index (ARI). Methods: 88 human premolar teeth chosen from the Nova Southeastern tooth databank were randomly divided into four groups. Group I (control group): Transbond XT primer and adhesive (35% phosphoric acid), Group II: iBond Total Etch system with iBond 35 gel (35% phosphoric acid), Group III: iBond Total Etch system with iBond 20 gel (20% phosphoric acid). Group IV: iBond Self Etch. A scanning electron microscope (SEM) was utilized to qualitatively examine the enamel surface of one randomly selected tooth per group immediately after etching, leaving 21 teeth per group available for the debonding procedure (n=21). Following bonding of the stainless steel brackets (3M Unitek, Monrovia, CA), the teeth were stored in water at 37°C ± 2°C for forty-eight hours. A universal testing machine (Instron, Canton, MA) was then used to determine the shear bond strength of each bracket. Additionally, the amount of adhesive remaining on each tooth following debonding was recorded using 10x light microscopy. Results: A 1-way ANOVA revealed that no statistical differences in bond strength were found between the four groups. SBS values of groups I (11.7 ± 3.9), II (11.6 ± 4.6), III (10.3 ± 4.1), and IV (10.8 ± 3.9) demonstrated mean SBSs considered adequate. The iBond Total Etch (20%) and iBond Total Etch (35%) groups were more likely to have an ARI score of 2-3 than the control group (Transbond XT). No significant differences were found between iBond Self Etch and the control group. Conclusion: The SBS's of all three groups, as compared to the control group, were adequate. The iBond Total Etch system, whether used with iBond 20 gel or iBond 35 gel, had more adhesive remaining on the tooth surface after debonding. Standardization amongst shear bond strength studies is significantly needed in the near future in order to accurately compare findings. 2011-12-01T08:00:00Z campusthesis application/pdf https://nsuworks.nova.edu/hpd_cdm_stuetd/32 https://nsuworks.nova.edu/cgi/viewcontent.cgi?article=1044&context=hpd_cdm_stuetd Student Theses, Dissertations and Capstones NSUWorks Health and environmental sciences Acid-etch Bonding Orthodontics Transbond XT iBond Dentistry Orthodontics and Orthodontology
collection NDLTD
format Others
sources NDLTD
topic Health and environmental sciences
Acid-etch
Bonding
Orthodontics
Transbond XT
iBond
Dentistry
Orthodontics and Orthodontology
spellingShingle Health and environmental sciences
Acid-etch
Bonding
Orthodontics
Transbond XT
iBond
Dentistry
Orthodontics and Orthodontology
Mazzarella, Jennifer
In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system
description December 2011. A thesis submitted to the College of Dental Medicine of Nova Southeastern University of the degree of Master of Science in Dentistry. Introduction: The purpose of this study is to compare the shear bond strengths (SBSs) of two new commercial adhesive systems to a conventional multistep bonding system incorporating a 35% phosphoric acid gel. In addition, the amount of adhesive remaining on each tooth following debonding will be analyzed and compared using the adhesive remnant index (ARI). Methods: 88 human premolar teeth chosen from the Nova Southeastern tooth databank were randomly divided into four groups. Group I (control group): Transbond XT primer and adhesive (35% phosphoric acid), Group II: iBond Total Etch system with iBond 35 gel (35% phosphoric acid), Group III: iBond Total Etch system with iBond 20 gel (20% phosphoric acid). Group IV: iBond Self Etch. A scanning electron microscope (SEM) was utilized to qualitatively examine the enamel surface of one randomly selected tooth per group immediately after etching, leaving 21 teeth per group available for the debonding procedure (n=21). Following bonding of the stainless steel brackets (3M Unitek, Monrovia, CA), the teeth were stored in water at 37°C ± 2°C for forty-eight hours. A universal testing machine (Instron, Canton, MA) was then used to determine the shear bond strength of each bracket. Additionally, the amount of adhesive remaining on each tooth following debonding was recorded using 10x light microscopy. Results: A 1-way ANOVA revealed that no statistical differences in bond strength were found between the four groups. SBS values of groups I (11.7 ± 3.9), II (11.6 ± 4.6), III (10.3 ± 4.1), and IV (10.8 ± 3.9) demonstrated mean SBSs considered adequate. The iBond Total Etch (20%) and iBond Total Etch (35%) groups were more likely to have an ARI score of 2-3 than the control group (Transbond XT). No significant differences were found between iBond Self Etch and the control group. Conclusion: The SBS's of all three groups, as compared to the control group, were adequate. The iBond Total Etch system, whether used with iBond 20 gel or iBond 35 gel, had more adhesive remaining on the tooth surface after debonding. Standardization amongst shear bond strength studies is significantly needed in the near future in order to accurately compare findings.
author Mazzarella, Jennifer
author_facet Mazzarella, Jennifer
author_sort Mazzarella, Jennifer
title In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system
title_short In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system
title_full In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system
title_fullStr In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system
title_full_unstemmed In vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system
title_sort in vitro comparison of shear bond strength and remaining adhesive using a new commercial self-etching primer, 35% and 20% prosphoric acid multi-step system
publisher NSUWorks
publishDate 2011
url https://nsuworks.nova.edu/hpd_cdm_stuetd/32
https://nsuworks.nova.edu/cgi/viewcontent.cgi?article=1044&context=hpd_cdm_stuetd
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