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The Shear Bond Strength Of Orthodontic Bracket Base Shapes To Human Enamel An In Vitro Study
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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 In Vitro Bond Strength of Orthodontic Brackets and Resin Composite Cement Degree of Conversion as a Function of Pre-cure Temperature by : David Richard Ries
Download or read book In Vitro Bond Strength of Orthodontic Brackets and Resin Composite Cement Degree of Conversion as a Function of Pre-cure Temperature written by David Richard Ries and published by . This book was released on 2010 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this study was to evaluate the shear bond strength of orthodontic brackets and corresponding resin composite cement degree of conversion as function of pre-cure temperature. Orthodontic brackets were bonded to paired maxillary premolars or mandibular third molars in an environmental chamber with either room temperature (control) or warmed (68°C) resin cement. Bonding was followed immediately by shear testing of the bracket/cement/tooth interface. Residual resin cement on the bracket base was evaluated using micro-Raman spectroscopy to measure the degree of conversion of the cement from ratios of spectral peak heights at 1610cm−1 and 1640cm−1. Results showed no difference in shear bond strength or degree of conversion between room temperature and pre-warmed groups. Also, there was no difference in bond strength between premolar and third molar groups. The evidence suggests that pre-warming resin composite cement is not beneficial for increasing shear bond strength.
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.
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 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 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 In Vitro Bond Strength of Orthodontic Direct Bonding Bracket-cement Systems by : V. A. James Buzzitta
Download or read book In Vitro Bond Strength of Orthodontic Direct Bonding Bracket-cement Systems written by V. A. James Buzzitta and published by . This book was released on 1981 with total page 150 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 The Influence of Bracket Base Design on Shear Bond Strength of Brackets Bonded to Bovine Enamel by : Seema K. Sharma-Sayal
Download or read book The Influence of Bracket Base Design on Shear Bond Strength of Brackets Bonded to Bovine Enamel written by Seema K. Sharma-Sayal and published by . This book was released on 1999 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1983 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Surface Preparation on the Shear Bond Strength of Orthodontic Brackets Bonded to Zirconia by :
Download or read book The Effect of Surface Preparation on the Shear Bond Strength of Orthodontic Brackets Bonded to Zirconia written by and published by . This book was released on 2015 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Effect of Enamel Bleaching on Bond Strength of Orthodontic Brackets by : Joseph M. Mullins
Download or read book Effect of Enamel Bleaching on Bond Strength of Orthodontic Brackets written by Joseph M. Mullins and published by . This book was released on 2005 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Argon Laser Irradiation on Shear Bond Strength of Orthodontic Brackets by : Travis Quentin Talbot
Download or read book The Effect of Argon Laser Irradiation on Shear Bond Strength of Orthodontic Brackets written by Travis Quentin Talbot and published by . This book was released on 2000 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Adhesion Boosters and Base Design on the Shear Bond Strength of Orthodontic Attachments by : John Bailey
Download or read book Effects of Adhesion Boosters and Base Design on the Shear Bond Strength of Orthodontic Attachments written by John Bailey and published by . This book was released on 2006 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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:
