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Shear Bond Strenght And Enamel Alteration After Repeated Bonding And Debonding Of Orthodontic Brackets
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Book Synopsis Shear Bond Strenght and Enamel Alteration After Repeated Bonding and Debonding of Orthodontic Brackets by : David Y. Chang
Download or read book Shear Bond Strenght and Enamel Alteration After Repeated Bonding and Debonding of Orthodontic Brackets written by David Y. Chang and published by . This book was released on 1993 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Debonding and Fixed Retention in Orthodontics by : Theodore Eliades
Download or read book Debonding and Fixed Retention in Orthodontics written by Theodore Eliades and published by John Wiley & Sons. This book was released on 2023-10-16 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Debonding and Fixed Retention in Orthodontics An accessible and thorough guide to debonding and fixed retainer bonding Debonding and Fixed Retention in Orthodontics: An Evidence-Based Clinical Guide reviews the protocols, materials, and techniques required at two key stages of orthodontic treatment. The book has been written as a reference guide and the chapters introduce the best-supported and most efficient approaches to each stage of debonding and fixed retainer bonding treatments, from choice of material through to final results. The book includes relevant procedures including orthodontic appliance removal, appliance debonding, the use of rotating instruments, and enamel cleaning. The authors also provide guidance on topics such as the failure and adverse effects of fixed retainers, enamel structural defects, periodontal effects, and aerosol production, to aid in positive result retention. Readers will also find: Two extensive sections covering debonding and fixed retainer bonding Evidence-based guidelines for each stage of treatment Summaries of the side effects of procedures on hard and soft dental tissues Tips to avoid potential unfavorable sequelae Detailed lists of existing methods and their clinical implications Debonding and Fixed Retention in Orthodontics is written for orthodontic specialists, clinicians, and postgraduate dental students looking to build knowledge and ensure the best results during these two stages of orthodontic therapy.
Book Synopsis The Shear Bond Strength of Orthodontic Bracket Base Shapes to Human Enamel, an in Vitro Study by : Ziana Esmail
Download or read book The Shear Bond Strength of Orthodontic Bracket Base Shapes to Human Enamel, an in Vitro Study written by Ziana Esmail and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: There is a growing demand for esthetic appliances during orthodontic treatment, with a specific interest in WildSmiles shaped brackets amongst children and adolescents. Bond failure of brackets over the course of orthodontic treatment can result in increased treatment time, increased overhead costs, and feelings of frustration for the patient and practitioner. Objective: The purpose of this study was to the evaluate the effect of orthodontic bracket base shape on shear bond strength (SBS) to human enamel, in vitro, at two time points, as well as the nature of debonding fractures using the Adhesive Remnant Index (ARI). Methods: Orthodontic brackets with different shaped bases (flower, heart, rectangular) were bonded to 120 extracted human third molars. SBS was measured using a Servohydraulic Test System at 24 hours and 2 months after initial bonding. ARI scores were evaluated under 10x magnification to assess the amount of resin left on the tooth. Results: The control bracket with a rectangular base shape had the highest mean SBS (26.78 ± 8.19 MPa), and significantly differed from flower (17.19 ± 4.45 MPa) and heart (18.86 ± 3.50 MPa) base shapes (p 0.001). The mean SBS of flower and heart shaped brackets did not differ considerably from each other (p 0.05). The mean SBS between debond times at 24 hours (21.50 ± 7.46 MPa) and 2 months (20.38 ± 6.69 MPa) were not statistically significant (p > 0.05). Analysis of ARI scores showed a significant difference between Flower-24 hours vs Heart- 2 months (p=0.039), Flower-24 hours vs Heart- 24 hours (p=0.004), and Control-2 months vs Heart-24 hours (p=0.015). The heart shaped bracket had a greater proportion of adhesive bond failures at the enamel-resin interface. Conclusion: Bracket base shape has an effect on SBS, with the rectangular base shape having a higher mean SBS compared to flower and heart base shapes. All bracket shapes had bond strengths above the clinically acceptable range of 6-8 MPa, and thus may provide adequate SBS in a clinical situation. Variations in ARI scores occurred based on bracket shape and were of a mixed adhesive-cohesive nature.
Book Synopsis The Feasibility of Bonding Orthodontic Brackets to Laser Treated Enamel Surfaces by : Zvi Kantorowitz
Download or read book The Feasibility of Bonding Orthodontic Brackets to Laser Treated Enamel Surfaces written by Zvi Kantorowitz and published by . This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bond Strength In Orthodontics by : Rahamath Ulla Khan
Download or read book Bond Strength In Orthodontics written by Rahamath Ulla Khan and published by LAP Lambert Academic Publishing. This book was released on 2014-03-06 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demineralization of enamel has been one of the iatrogenic effects of fixed orthodontic therapy, for which various authors have suggested the use of fluoride to reduce the decalcification and development of white spot lesion. In the present study, the shear bond strength of light-cure composite adhesive, self-cure composite adhesive, light-cure glass ionomer cement and acidic primer were tested at the end of 24 hours after bonding. The results proved that the acidic primer system had highest shear bond strength while Light-cure glass ionomer system had the least shear bond strength. But the mean values met the minimal shear bond strength required for orthodontic bonding. After bond failure, least amount of glass ionomer cement was present on the enamel surface, followed by acidic primer system, light-cure composite and self-cure composite system. So, it is advantageous to use light-cure glass ionomer cement for bonding in terms of less amount of time spent and no enamel damage during cleaning procedure after debonding.
Book Synopsis DIFFERENT ORTHODONTIC BONDING AGENTS: - THEIR MYTHS AND TRUTHS by : Dr. Chandresh Shukla
Download or read book DIFFERENT ORTHODONTIC BONDING AGENTS: - THEIR MYTHS AND TRUTHS written by Dr. Chandresh Shukla and published by Book Rivers. This book was released on 2022-05-24 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Standardized Approach to Determine the Effect of Thermocycling and Long Term Storage on the Shear Bond Strength of Orthodontic Brackets Cemented to Bovine Enamel by : Raj-Deep Singh Mahal
Download or read book A Standardized Approach to Determine the Effect of Thermocycling and Long Term Storage on the Shear Bond Strength of Orthodontic Brackets Cemented to Bovine Enamel written by Raj-Deep Singh Mahal and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1980's, direct bonding became a routine clinical procedure. Current literature on the effects of thermocycling on bond strength is equivocal. This is largely due to a lack of a universally accepted standardized technique to examine the effects of thermocycling on orthodontic bond strength. As a result, differences in testing methodology between laboratories and investigators within the same laboratory make it difficult to directly compare data from thermocycling studies. The aims of this study were (1) to show that the testing method developed at the University of Toronto is independent of the investigator; (2) to determine the effect of thermocycling on the shear bond strength of orthodontic brackets bonded to bovine enamel; (3) to determine the effect of long term storage on the mean shear bond strength of orthodontic brackets bonded to bovine enamel; (4) to examine the bond failure interface in order to determine if a relationship exists between thermocycling and the location of the cement after debonding; (5) to examine the bond failure interface in order to determine if a relationship exists between long term storage and the location of the cement after debonding. (Abstract shortened by UMI.).
Book Synopsis BONDING IN ORTHODONTICS by : DR.ARCHANA KUMARI
Download or read book BONDING IN ORTHODONTICS written by DR.ARCHANA KUMARI and published by Book Rivers. This book was released on 2022-03-14 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of orthodontic materials in the past 5 decades has been a unique progress curve characterized by periods of intense activity with many developments followed by long quiescent intervals. An example of the delay in adopting the advances in dentistry might well be illustrated by the acid-etching technique, which was introduced in the mid 1950s1 and became universally accepted in the 1960s. It took more than a decade for this practice to become standard procedure in orthodontics on a large scale. Infact, orthodontic bonding has advanced more in last 10 years than previous 25. In the past decade, we have witnessed unprecedented progress in bonding to enamel with various materials techniques and auxiliaries involving glass ionomer bonding, self-etching primers, and new, powerful light-curing sources, along with self-ligating brackets and a different treatment concept, the Invisalign technique.
Book Synopsis Shear Bond Strength of Brackets Adhered to Laser-Etch Versus Acid-Etch by : Hakam Alfaqheri
Download or read book Shear Bond Strength of Brackets Adhered to Laser-Etch Versus Acid-Etch written by Hakam Alfaqheri and published by LAP Lambert Academic Publishing. This book was released on 2011-10 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many studies have been done on the shear bond strength of brackets adhered to acid-etched enamel and so far, there is no study on shear bond strength of brackets adhere to laser-etched enamel in Iraq. So, this study is an attempt to compare the shear bond strength of brackets adhered to laser-etched enamel with that of brackets adhered to acid-etched enamel. The application of laser irradiation to etch dental enamel for direct bonding of orthodontic appliance has been studied. CO2 (Carbon Dioxide) laser are capable of producing surface irregularities in human enamel which resemble those resulting from etching of enamel with ortho-phosphoric acid. Whether laser conditioning improves the retention of composite resins to the same degree as conventional acid-etching techniques has been the subject of several investigations.
Author :Yung-Jeng Song Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 : Total Pages :180 pages Book Rating :4.3/5 (91 download)
Book Synopsis Optimizing the Shear Bond Strength of Orthodontic Brackets Using Hybrid Glass Ionomer Materials by : Yung-Jeng Song
Download or read book Optimizing the Shear Bond Strength of Orthodontic Brackets Using Hybrid Glass Ionomer Materials written by Yung-Jeng Song and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1996 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bond Strengths of Orthodontic Brackets Using 3 Etching Techniques by : Shilpa Jamenis
Download or read book Bond Strengths of Orthodontic Brackets Using 3 Etching Techniques written by Shilpa Jamenis and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was carried out to evaluate and compare the shear bond strengths between the orthodontic bracket and acid etched enamel, enamel treated with self-etch primer and laser irradiated enamel and to analyze the interface of the enamel bracket bond.It will help students, teachers and othodontia practitioners as it deals with the most contemporarily used bonding techniques. The results indicate that the shear bond strength of all the three groups was clinically acceptable with no significant difference between them but more adhesive was left on enamel treated with acid and laser as compared to self-etch primer treated enamel.
Book Synopsis Self-Etching Primers and Shear Bond Strength of Orthodontic Brackets by : Amit Goyal
Download or read book Self-Etching Primers and Shear Bond Strength of Orthodontic Brackets written by Amit Goyal and published by LAP Lambert Academic Publishing. This book was released on 2011-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-etching primers are the latest addition to the armamentarium of an orthodontist. Their main advantage is that they reduce the number of steps required in the bonding of orthodontic brackets. However, their low ph was a cause of concern. This book describes a study undertaken to see the effects of ph of self-etchant on shear bond strength of orthodontic brackets. These shear bond strengths were also compared to those obtained with a conventional 3-step bonding system. It was found that self-etching primers not only reduce the chair time in an orthodontist's clinic but also reduce the amount of enamel lost during etching. The bond strength achieved was less than that of the conventional bonding system but was acceptable for orthodontic purposes. Thus self-etching primers are an important and useful invention for simplifying the most critical step in orthodontic clinic- bonding.
Book Synopsis Evaluation of the Shear Bond Strength of Orthodontic Brackets Rebonded to Enamel and Commonly Used Dental Ceramics by : Cathy Hernandez
Download or read book Evaluation of the Shear Bond Strength of Orthodontic Brackets Rebonded to Enamel and Commonly Used Dental Ceramics written by Cathy Hernandez and published by . This book was released on 2016 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alternative Orthodontic Bonding Protocol Using Self Etching Primer by : Rush-Baker G. Caldwell
Download or read book Alternative Orthodontic Bonding Protocol Using Self Etching Primer written by Rush-Baker G. Caldwell and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the current study was to develop a bonding method that can achieve clinically acceptable bond strength values while leaving a minimum amount of adhesive on the tooth surface during the debonding process. One hundred teeth were randomly assigned into groups. Five different enamel surface preparation protocols were tested (N = 20, each): Conventional acid etch, standard SEP, SEP applied with a light brush stroke (altered SEP 1), SEP applied directly to the composite of pre-coated bracket (altered SEP 2), and Primer Only groups. Brackets were debonded using an Instron universal testing machine (Instron, Canton, MA) in shear mode and the mean shear bond strength values were calculated. In addition, enamel surfaces were examined under light microscope to determine the location of failure using ARI. The Primer Only group had significantly lower mean shear strength (0.14 MPa, P0.05) than the conventional acid etch (13.81 MPa), standard SEP (12.10 MPa), altered SEP 1 (10.80 MPa), and altered SEP 2 (11.48 MPa) groups. The conventional acid etch, standard SEP, altered SEP 1 and altered SEP 2 groups were not significantly different from each other (p0.05). With respect to ARI values, there was a significant difference among these four groups. 85% of samples in the altered SEP 2 group had 10% or less composite resin left on their surfaces. This group had also a mean shear bond strength value of 11.43 MPa, significantly above the minimal strength needed for orthodontic attachment bonding, and the lowest ARI values overall. Therefore, application of SEP directly to the composite resin of the pre-coated brackets may be an ideal bonding method by providing adequate bond strength and leaving a minimum amount of composite resin on the tooth surface during debonding. It should be kept in mind that future in-vivo studies would be needed to confirm the findings obtained from the current in-vitro study.
Book Synopsis Principles in Contemporary Orthodontics by : Silvano Naretto
Download or read book Principles in Contemporary Orthodontics written by Silvano Naretto and published by BoD – Books on Demand. This book was released on 2011-11-25 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Orthodontics is a fast developing science as well as the field of medicine in general. The attempt of this book is to propose new possibilities and new ways of thinking about Orthodontics beside the ones presented in established and outstanding publications available elsewhere. Some of the presented chapters transmit basic information, other clinical experiences and further offer even a window to the future. In the hands of the reader this book could provide an useful tool for the exploration of the application of information, knowledge and belief to some orthodontic topics and questions.
Book Synopsis The Feasibility of Bonding Orthodontic Brackets to Laser Treated Enamel Surfaces by :
Download or read book The Feasibility of Bonding Orthodontic Brackets to Laser Treated Enamel Surfaces written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Orthodontic Bracket Bond Strength Using Self-etching Primer with Or Without Pumice Or Acid Etch Pretreatment by : Ana Paula DeCastro
Download or read book Orthodontic Bracket Bond Strength Using Self-etching Primer with Or Without Pumice Or Acid Etch Pretreatment written by Ana Paula DeCastro and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to compare the shear bond strength of orthodontic brackets to enamel in four bonding protocols: SEP without prior pumicing (None), Pre-etch and SEP without prior pumicing (Pre-etch), control: SEP with prior pumicing (Pumice), and Pre-etch and SEP with prior pumicing (Both). 80 extracted bovine incisors were randomly divided into 4 groups of 20, and brackets were bonded under the different experimental conditions. Debonding force was measured with an Instron universal testing machine. A two-way ANOVA comparing the four groups indicated that there was a significant difference in debonding force (P = 0.001). The SEP without prior pumicing group (17.69 " 7.18 MPa) was statistically different from the SEP group with prior pumicing (25.82 " 6.84 MPa). There was no statistical difference found among the other groups. Differences in the Adhesive Remnant Index (ARI) were analyzed by chi-square. ARI scores differed significantly (P =0.0048).
