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A Comparative Study Of Shear Bond Strengths Of Different Combinations Of Adhesive Systems And A Porcelain Priming Agent When Bonding Ceramic Brackets To Porcelain
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Book Synopsis A Comparative Study of Shear Bond Strengths of Different Combinations of Adhesive Systems and a Porcelain Priming Agent when Bonding Ceramic Brackets to Porcelain by : Boyd O. Whitlock
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.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1989 with total page 1412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Books and Package Libraries for Dentists by :
Download or read book Books and Package Libraries for Dentists written by and published by . This book was released on 1993 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Journal of Dentistry written by and published by . This book was released on 2003 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EFFECTIVENESS OF UNIVERSAL ADHESIVE BONDING AGENTS ON THE SHEAR BOND STRENGTH TO LITHIUM DISILICATE CERAMICS by : Mohammed AlRabiah
Download or read book EFFECTIVENESS OF UNIVERSAL ADHESIVE BONDING AGENTS ON THE SHEAR BOND STRENGTH TO LITHIUM DISILICATE CERAMICS written by Mohammed AlRabiah and published by . This book was released on 2016 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: All-ceramic restorations have excellent esthetic outcomes compared with other restorative materials. Lithium disilicate is classified as one of many silica-based all-ceramic materials. Currently, companies have provided single-step adhesives, known as universal adhesives, compatible with different restorative materials including lithium disilicate. Many studies have reported greater bond strengths when using a silane to treat the lithium disilicate before applying the bonding agent. Moreover, few studies were published comparing the bond strength when using the universal adhesive alone. Purpose: The objective of this study was to evaluate and compare shear bond strength of three universal adhesives to lithium disilicate ceramic restorative material. Materials and Methods: Three universal adhesive bonding agents were selected from commercially available adhesives. 408 IPS e.max CAD ceramic discs were processed, fired, and etched for 20s. The specimens were divided into six groups. The first three groups used the universal adhesive directly. The remaining three groups were treated with silane. Then, a composite resin cylinder was placed on top of the adhesive using a bonding jig. Each group was subdivided into four equal subgroups (n = 17), subjected to different aging simulation procedures: 24 h, one month with 5000 thermocycles, two months with 5000 cycles, and three months with 5000 cycles. Then, specimens were debonded using shear force by a universal testing machine (MTS). Results: Shear bond strength was greater with silane than without silane (p
Book Synopsis Comparative Strengths of Some Adhesive-adherend Systems by : N. J. DeLollis
Download or read book Comparative Strengths of Some Adhesive-adherend Systems written by N. J. DeLollis and published by . This book was released on 1949 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The strength properties of various adhesive-adherend combinations were determined as one phase of an investigation of the nature of adhesion. The adhesives were polyvinyl acetate, cellulose nitrate, resorcinol resin, casein, gum arabic, natural rubber, and neoprene. The adherends were stainless steel, aluminum alloy, paper-phenolic laminate, glass, birch wood, and hard rubber. The properties studied were double-lap shear, tensile, long-time loading shear, and impact strengths.
Book Synopsis An Investigation of Shear Bond Strengths of Dental Porcelain Repair Systems and Silane Coupling Agents by : Carl L. Brownd
Download or read book An Investigation of Shear Bond Strengths of Dental Porcelain Repair Systems and Silane Coupling Agents written by Carl L. Brownd and published by . This book was released on 1982 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shear Bond Strength of an Orthodontic Adhesive: a Comparison of Etched Vs Un-etched Porcelain by : John K. Krieder
Download or read book Shear Bond Strength of an Orthodontic Adhesive: a Comparison of Etched Vs Un-etched Porcelain written by John K. Krieder and published by . This book was released on 2016 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index Medicus written by and published by . This book was released on 2003 with total page 2084 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
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 Comparison of Two Self-Etch Primers and a Fluoride Sealant on Shear Bond Strength of Precoated Brackets by : Debby Wong
Download or read book Comparison of Two Self-Etch Primers and a Fluoride Sealant on Shear Bond Strength of Precoated Brackets written by Debby Wong and published by . This book was released on 2009 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: In an attempt to save chair time during bonding, self-etching primers are used along with metal brackets that are precoated with adhesive material. Fluoride releasing sealants has also been used commonly to prevent decalcification during orthodontic treatment. The purpose of this study was to compare the shear bond strength (SBS) of APC precoated brackets bonded with two different self-etching primers: Transbond Plus self-etch primer (TPSEP) and Reliance self-etch primer. This study also evaluated the effect of combining TPSEP or the Reliance SEP with LED Pro Seal, a fluoride releasing sealant for the enamel surface. Each of the self-etching primers (SEPs) and the combination of SEP combined LED Pro Seal were evaluated for shear bond strength after 24 hours of storage and thermocycling with 1 week of storage, in order to simulate some of the temperature changes in the oral cavity.^Materials and Methods: One hundred and twelve teeth were randomly divided into eight groups as follows: Group 1: Transbond Plus self-etch primer (TPSEP), Group 2: Reliance self-etch primer (Reliance), Group 3: TPSEP and LED Pro Seal, Group 4: Reliance and LED Pro Seal, Group 5: TPSEP with thermocycling, Group 6: Reliance with thermocycling, Group 7: TPSEP and LED Pro Seal with thermocycling, Group 8: Reliance and LED Pro Seal with thermocycling. An occlusogingival load was applied to the brackets producing a shear force at the bracket-tooth interface utilizing a Universal Testing Machine. Results: Significant differences in shear bond strengths among the groups containing the TPSEP or Reliance SEP, were detected by two-way ANOVA (p = 0.018). The results of the Newman-Keul's test that compared the test groups at 24 hours show that the shear bond strength of Reliance SEP (3.98 MPa " 1.30) was not statistically different from TPSEP (4.25 MPa " 1.16).^When each of the SEP is combined with the Pro Seal, a statistical difference in shear bond strength is detected between TPSEP (6.01 MPa " 3.05) and Reliance SEP (3.76 MPa " 1.52). Reliance SEP used alone vs. Reliance SEP combined with Pro Seal did not show any statistical difference in shear bond strength. However, when TPSEP was compared to TPSEP combined with Pro Seal, it showed a statistical difference in shear bond strength. Nonetheless, a two-way ANOVA did not detect any statistically significant interaction between the SEPs and the Pro Seal (p = 0.058). None of the groups showed statistically significant differences in shear bond strength when compared at the one week group. Conclusion: The newly introduced Reliance SEP provides similar shear bond strengths to Transbond Plus SEP. Reliance SEP with LED Pro Seal and Transbond Plus SEP with LED Pro Seal both provide adequate shear bond strengths.^Both SEPs used alone or with LED Pro Seal maintained its bond strength after thermocycling. LED Pro Seal is demonstrated to have good bond strength to enamel and can withstand the oral environment.
Book Synopsis Shear Bond Strength of Porcelain, Glass, and Composite to In-ceram and Flexural Strength of Soldered In-ceram by : Leneise Cheri Lynn
Download or read book Shear Bond Strength of Porcelain, Glass, and Composite to In-ceram and Flexural Strength of Soldered In-ceram written by Leneise Cheri Lynn and published by . This book was released on 1994 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Shear Bond Strength of Two Adhesive Resin Systems to Surface-treated Porcelain and Tooth Structure by : Renier Johann Hanekom
Download or read book The Shear Bond Strength of Two Adhesive Resin Systems to Surface-treated Porcelain and Tooth Structure written by Renier Johann Hanekom and published by . This book was released on 2002 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparing Shearbond Strength - Ethyl Cyanoacrylate & Self-cure Acrylic by : Jacob John
Download or read book Comparing Shearbond Strength - Ethyl Cyanoacrylate & Self-cure Acrylic written by Jacob John and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditional bonding materials are incapable of bonding in presence of moisture, are challenged by "Moist-field" bonding materials. Claims and counter claims are made regarding their, efficacy to use as ideal orthodontic bonding adhesives. Present study done to compare Shearbondstrength of Ethyl cyanoacrylate(Smart Bond) and self cure acrylic(Rely-a-Bond) under different conditions. Rely-a-Bond and Smart Bond, are acceptable bonding materials in dry and wet conditions respectively with regards to Shear bond strength values per se. Rely-a-Bond showed significant increase in Shear bond strength from 1 hour to 24 hours. Smart Bond shows significant decrease in Shear bond strength over time. Rely-a-Bond has significantly increased Shear bond strength than Smart Bond at all times. Rely-a-Bond has high probability of failure at 1 hour; however show drastic improvement at 24 hours. Hence usage of Rely-a-Bond, force application should be deferred for 24 hours. Smart Bond adhesive is unsuitable for use as a bonding agent in routine orthodontic practice. However, the ability of this adhesive to adhere to wet surfaces could enable practitioners to bond attachments in wet conditions.
Book Synopsis Textbook of Operative Dentistry by : Nisha Garg
Download or read book Textbook of Operative Dentistry written by Nisha Garg and published by Boydell & Brewer Ltd. This book was released on 2010-08 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition is a complete guide to operative dentistry. Beginning with an introduction, physiology, dental caries and tooth preparation, the text also discusses pain and infection control. The following sections examine different operative procedures. New techniques such as minimal intervention dentistry, nanotechnology and lasers; and advances in dental materials are discussed in detail. More than 1200 colour images, illustrations, flow charts and tables are included. Key points Complete guide to operative dentistry Discusses numerous different procedures, and pain and infection control New techniques and advances in materials described in detail More than 1200 colour images, illustrations, flow charts and tables Previous edition published in 2010
Download or read book Bioceramics written by Joon Park and published by Springer Science & Business Media. This book was released on 2009-03-02 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioceramics: Properties, Characterization, and Applications will be a general introduction to the uses of ceramics and glasses in the human body for the purposes of aiding, healing, correcting deformities, and restoring lost function. With over 30 years experience, the author developed the text as an outgrowth of an undergraduate course for senior students in biomedical engineering and will emphasize the fundamentals and applications in modern implant fabrication, and will also deal with tissue engineering scaffolds made of ceramics. Organized as a textbook for the student needing to acquire the core competencies, it will meet the demands of advanced undergraduate or graduate coursework in bioceramics, biomaterials, biomedical engineering, and biophysics.
Book Synopsis Orthodontic Materials by : Wiliam A. Brantley
Download or read book Orthodontic Materials written by Wiliam A. Brantley and published by Thieme. This book was released on 2011-01-01 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this important new textbook all scientific and clinical aspects of orthodontic materials are described.Recent developments in science and technology have led to the introduction of a plethora of new orthodontic products. This work serves as an excellent source of information for a field that requires knowledge of basic elements of materials science, engineering, chemistry, and physics, as well as clinical orthodontics. The subject has been part of graduate orthodontic education for almost three decades. Besides servicing the orthodontic training programs, the book also - investigates the interactions of orthodontic materials with other dental materials as well as hard tissues in the oral cavity,- gives a background to allow for proper material selection for efficient orthodontic mechanics,- treats the issues of biocompatibility, cytotoxicity and mutagenicity of materials.
