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Author : Maghnus H. O'Donnell
Publisher :
ISBN 13 :
Total Pages : 119 pages
Book Rating : 4.:/5 (222 download)
Download or read book An Investigation Into the Shear Bond Strength of Ceramic Brackets written by Maghnus H. O'Donnell and published by . This book was released on 1993 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Vitro Investigation Into Bond Strength of Metal and Ceramic Orthodontic Brackets written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: AIM: 1. To determine in vitro bond strength of metal and ceramic orthodontic brackets when using etch and separate primer, or self-etching primer (SEP) 2. To assess remaining adhesive following removal of orthodontic bracket METHOD: 180 previously extracted teeth were randomly allocated to one of six test groups. Each was subjected to either separate etch and primer or SEP and then bonded with an orthodontic bracket. These were metal (3M Unitek Victory), metal reinforced ceramic (3M Unitek Clarity) and poly-crystalline ceramic (3M Unitek Transcend). Samples were stored at 37 degrees C for 24 hours. Each bracket was debonded using shear force applied by the Instron Universal testing machine. Samples were examined under x10 light microscopy and allocated an Adhesive Remnant Index (ARI) score. RESULTS: Variation in shear bond strength (SBS) was seen across all groups. Lowest SBS was recorded with Victory series brackets bonded with SEP (7.08 MPa) and the highest was with Clarity series brackets bonded with separate etch and primer (15.96 MPa). Pooled data showed significantly higher SBS with separate etch and primer than SEP (T=2.83, p
Author : Thomas P. Kadar
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (663 download)
Download or read book The Effect on Shear Bond Strength of Ceramic Brackets at Different Water Temperatures written by Thomas P. Kadar and published by . This book was released on 1993 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Elizabeth Mary Richardson
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (911 download)
Download or read book In Vitro, Investigation Into Bond Strength of Metal and Ceramic Orthodontic Brackets written by Elizabeth Mary Richardson and published by . This book was released on 2010 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Boyd O. Whitlock
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (264 download)
Download or read book A Comparative Study of Shear Bond Strengths of Different Combinations of Adhesive Systems and a Porcelain Priming Agent when Bonding Ceramic Brackets to Porcelain written by Boyd O. Whitlock and published by . This book was released on 1992 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to compare the bond strengths of three adhesive systems (two-paste, no-mix, and one light-activated) when used alone and combined with a porcelain priming agent to bond ceramic brackets to porcelain surfaces. Sixty porcelain specimens were randomly assigned to the six different treatment groups. One half of the groups were bonded with the porcelain priming agent and one of the adhesive systems and the other half with one of the adhesive systems without the priming agent. The shear bond strengths, expressed in megapascals (MPa), of all specimens were tested, using an Instron testing machine, 10 minutes after being bonded. The surface of the porcelain and the bracket base were examined, using the scanning electron microscope (SEM), to determine the bond failure patterns and check the prcelain surface for the presence of cracks and fractures. Across the three different adhesive systems, mean shear bond strength measurements ranged from 6.3-7.5 MPa when the porcelain primer was used and from 1.8-3.8 when the porcelain primer was not used. There was a statistically significant difference within each adhesive between those samples with the priming agent (mean shear bond strength of 6.5 ± 0.8, 7.5 ± 1.0, and 6.3 ± 1.2) and those without the priming agent (mean shear bond strength of 3.8 ± 0.4, 1.8 ± 1.8, nad 2.6 ± 1.3) (p ≤ 0.5). Differences between the three adhesives were not statistically significant (p ≤ .05). Evaluation of the bond failure sites, using the SEM, revealed failures at the porcelain-adhesive interface, within the adhesive and at the bracket-adhseive interface for the porcelain primer samples. The samples that were bonded with the different adhesives only displayed a failure exclusively at the porcelain-adhesive interface. The failure patterns were verified by qualitative energy dispersive x-ray analysis (EDS). It can be concluded from this study that using any of the three adhesive systems combined with the porcelain priming agent will provide sufficient bond strength to withstand normal orthodontic forces and not damage the surface of the porcelain when debonded.
Author : Ekachai Chunhacheevachaloke
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (221 download)
Download or read book Shear Bond Strength of Ceramic Brackets to Composite Resin Surfaces written by Ekachai Chunhacheevachaloke and published by . This book was released on 1994 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Glenn Carty
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (221 download)
Download or read book Shear Bond Strength of a Mechanically Retained Ceramic Bracket written by Glenn Carty and published by . This book was released on 1993 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gregory E. Dykes
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (224 download)
Download or read book The Effects of Various Retentive Ceramic Bracket Bases on Shear Bond Strength written by Gregory E. Dykes and published by . This book was released on 1990 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gina M. Domm
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (1 download)
Download or read book Shear Bond Strength of Ceramic Brackets to Zirconia Conditioned with Various Primer-Adhesive Systems written by Gina M. Domm and published by . This book was released on 2017 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael P. Meharg
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (262 download)
Download or read book Bonding a Polycrystalline Ceramic Bracket written by Michael P. Meharg and published by . This book was released on 1989 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : ScholarlyEditions
ISBN 13 : 1464929823
Total Pages : 97 pages
Book Rating : 4.4/5 (649 download)
Download or read book Advances in Steel Research and Application: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Steel Research and Application / 2011 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about Steel in a concise format. The editors have built Advances in Steel Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Steel in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Steel Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author : Amit Goyal
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783847322122
Total Pages : 104 pages
Book Rating : 4.3/5 (221 download)
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.
Author : Birte Melsen
Publisher : John Wiley & Sons
ISBN 13 : 1119775779
Total Pages : 484 pages
Book Rating : 4.1/5 (197 download)
Download or read book Adult Orthodontics written by Birte Melsen and published by John Wiley & Sons. This book was released on 2022-10-03 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adult Orthodontics Complete reference work covering the increasingly prominent area of adult orthodontics Written by renowned contributors from the orthodontic community and compiled by world-class editors, Adult Orthodontics, 2nd Edition is an authoritative resource on the subject of adult orthodontics, marrying together clinical guidance with a thorough evaluation of the evidence base. Sample topics discussed within the book include: Context for adult orthodontics, including patient demographics and aetiology Treatment planning considerations, including patient case profiles, initial outcomes and longer-term expectations Interdisciplinary and multidisciplinary approaches, including the links between adult orthodontics and periodontics, prosthetics, and temporomandibular disorders This book is an invaluable resource for professionals providing orthodontic treatment to adults and those dealing with orthodontics as part of the interdisciplinary management of the adult dentition. Dedications To all of those who dedicated their spare time to finish this book Birte Melsen To Emese, my equilibrium To Birte, my inspiration To my grandparents Liliana and Cesare, they know why Cesare Luzi Dedicated to all the people who helped us during the process Birte Melsen To Emese, my equilibrium To Birte, my inspiration To my grandparents Liliana and Cesare, they know why Cesare Luzi
Author : J. Scott Eckels
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (269 download)
Download or read book Ceramic Bracket Bonding written by J. Scott Eckels and published by . This book was released on 1992 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jeffrey T. Keesler
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (45 download)
Download or read book Shear Bond Strengths of Metal and Ceramic Brackets Bonded to Contemporary Porcelain Surfaces written by Jeffrey T. Keesler and published by . This book was released on 2000 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1840 pages
Book Rating : 4.3/5 (243 download)
Download or read book Cumulated Index Medicus written by and published by . This book was released on 2000 with total page 1840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael J. Ponikvar
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (911 download)
Download or read book Effect of Delayed Polymerization Time and Bracket Manipulation on Orthodontic Bracket Bonding written by Michael J. Ponikvar and published by . This book was released on 2014 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the effect of bracket manipulation in combination with delayed polymerization times on orthodontic bracket shear bond strength and degree of resin composite conversion. Orthodontics brackets were bonded to extracted third molars in a simulated oral environment after a set period of delayed polymerization time and bracket manipulation. After curing the bracket adhesive, each bracket underwent shear bond strength testing followed by micro-Raman spectroscopy analysis to measure the degree of conversion of the resin composite. Results demonstrated the shear bond strength and the degree of conversion of ceramic brackets did not vary over time. However, with stainless steel brackets there was a significant effect (p ≤ 0.05) of delay time on shear bond strength between the 0.5 min and 10 min bracket groups. In addition, stainless steel brackets showed significant differences related to degree of conversion over time between the 0.5 min and 5 min groups, in addition to the 0.5 min and 10 min groups. This investigation suggests that delaying bracket adhesive polymerization up to a period of 10 min then adjusting the orthodontic bracket may increase both shear bond strength and degree of conversion of stainless steel brackets while having no effect on ceramic brackets.
