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An Investigation Of I The Surface Of Enamel And Its Influence On Direct Bonding Ii Rebonding Of Orthodontic Brackets Using The Scanning Electron Microscope And The Tensometer
Download An Investigation Of I The Surface Of Enamel And Its Influence On Direct Bonding Ii Rebonding Of Orthodontic Brackets Using The Scanning Electron Microscope And The Tensometer full books in PDF, epub, and Kindle. Read online An Investigation Of I The Surface Of Enamel And Its Influence On Direct Bonding Ii Rebonding Of Orthodontic Brackets Using The Scanning Electron Microscope And The Tensometer ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis An Investigation Of: I. The Surface of Enamel and Its Influence on Direct Bonding. II. Rebonding of Orthodontic Brackets, Using the Scanning Electron Microscope and the Tensometer by : P. D. Ferguson
Download or read book An Investigation Of: I. The Surface of Enamel and Its Influence on Direct Bonding. II. Rebonding of Orthodontic Brackets, Using the Scanning Electron Microscope and the Tensometer written by P. D. Ferguson and published by . This book was released on 1978 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Bonding in Orthodontics and the Enamel Surface by : Bruce Ian Watson
Download or read book Direct Bonding in Orthodontics and the Enamel Surface written by Bruce Ian Watson and published by . This book was released on 1972 with total page 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 The Effects of an Air-powder Polishing Device on the Shear Bond Strength of Two Orthodontic Metal Bracket Adhesive Systems by : Patti Ann Hawkins Jacob
Download or read book The Effects of an Air-powder Polishing Device on the Shear Bond Strength of Two Orthodontic Metal Bracket Adhesive Systems written by Patti Ann Hawkins Jacob and published by . This book was released on 1991 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this investigation was to evaluate the effects of air-powder polishing on shear bond strength in vitro for two metal bracket adhesive systems currently in use for direct orthodontic bonding procedures. Ninety-six third molar teeth with flattened enamel surfaces were randomly assigned to be bonded with metal brackets using either a two paste or a no-mix orthodontic adhesive resin. Thwelve samples in each treatment group were air-powder polished for 0, 15, 30, or 60 seconds. Each bracket adhesive bond was then tested for shear strength using the Instron Universal Testing Device. Scanning electron microscopy determined the fracture pattern of representative samples from each treatment group. Mean shear bond strength values for each treatment group were calculated and expressed in magapascals (MPa). Values from baseline to 60 seconds varied from 22.9 ± 1.9 MPa to 18.2 ± 4.1 MPa for the two paste system and from 15.5 ± 2.1 MPa to 14.6 ± 1.9 MPa for the no-mix adhesive. Differences between the adhesive systems at all air-powder polishing times were statistically significant (p d".05). Statistical analysis by a two-way ANOVA in combination with the Newman-Keuls Multiple Range Test for pairwise mean comparisons determined a differential effect of air-powder polishing on the bond strength of the two adhesive systems. After 60 seconds of air-powder polishing, results showed a significant decrease (p d".05) in the mean bond strength of the two paste adhesive resin when compared to baseline, 15, and 30 second treatments. No significant time effect of air-powder polishing was found for the no-mix adhesive system. SEM analysis of the bond failure sites showed tooth-adhesive, within adhesive and bracket-adhesive fracture patterns for the viewed samples of each adhesive type and air-powder polishing treatment time. Fractures within tooth structure were also noted for the two paste system, indicating strong enamel-adhesive-bracket bonds. Differences in the fracture pattern of the two paste 60 second air-powder polishing group may account for the differential effect of treatment. Although in vitro results showed decreased bond strength for the two paste system, use of air-powder polishing for the routine maintenance of the orthodontic patient should not affect clinical performance of this adhesive.
Book Synopsis The Addition of Fluoride to Enamel Surfaces During the Direct Bonding of Orthodontic Attachments by : Roger J. Oldroyd
Download or read book The Addition of Fluoride to Enamel Surfaces During the Direct Bonding of Orthodontic Attachments written by Roger J. Oldroyd and published by . This book was released on 1984 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An in Vitro Study of the Effects of Physical Plasma on the Bonding of Orthodontic Brackets - Can Etching be Replaced? by : Mostafa Alzahar
Download or read book An in Vitro Study of the Effects of Physical Plasma on the Bonding of Orthodontic Brackets - Can Etching be Replaced? written by Mostafa Alzahar and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objectives: This study investigates the effectiveness of the Cold AP on the alteration of the enamel surface without using acid etchant by using Conventional photo-activated resin bond to bond the orthodontic brackets. Materials and Methods: One hundred and twenty-five Enamel specimens are prepared from disinfected bovine mandibular incisors are divided into five groups. Group I: brackets are attached on the enamel surface with the standard adhesive technique (etch + primer +bond). Group II: the brackets are attached with the Standard Orthodontic adhesive technique without etching. Group III: the enamel surface is conditioned with pure Argon Cold atmospheric plasma before the application of the primer without using an acid etchant. Group IV: the enamel surface is conditioned with the admixture of Argon Cold atmospheric plasma with 0.5 % Oxygen before the application of the primer without using acid etchant Group V: after the application of Argon Cold atmospheric plasma with 0.5 % Oxygen the surface is rewetted by deionized water before the application of the primer and adhesive. After that, the samples are exposed to thermal cycling. The shear bond strength of the samples is tested by the universal testing machine which measured the maximum force at which the brackets are deboned from the tooth surface at a speed of 1mm/minute is measured. Results: Significant intergroup differences were found. Group V showed the highest shear bond strength followed by Group I, VI, III, II ...
Book Synopsis Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness by : Kaylee Anne Bergman
Download or read book Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness written by Kaylee Anne Bergman and published by . This book was released on 2019 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective: This study evaluated the effect of primer protocol for metal orthodontic brackets bonded to zirconia ceramic and resulting shear bond strength (SBS), adhesive remnant index (ARI), and debonded and polished zirconia surface roughness. Methods: Zirconia specimens were milled, glazed, embedded in acrylic resin and the target area microetched with aluminum oxide. Glazed and microetched representative specimens were evaluated with energy dispersive spectroscopy (EDS). Specimens were randomly assigned to primer protocol, enamel (TransbondTM Plus Self-Etching Primer) or zirconia (Assure® Plus), and primed according to manufacturer instructions. Metal orthodontic brackets were bonded to the primed surface with resin adhesive (Transbond XTTM) and light cured. To simulate intraoral conditions, all primer and bonding protocols took place in an environmental chamber set at 33±2°C and 75±5% humidity followed by a 24-hour dark cure at 37 C. Following SBS testing, an ARI value was assigned to debonded brackets. Residual adhesive was removed from the debonded zirconia specimens, the zirconia surface polished, and surface roughness measured using a profilometer. Scanning electron microscopy (SEM) was performed for qualitative evaluation of the zirconia surface. Results: Zirconia substructure exposure by aluminum oxide microetching was verified with EDS. A significantly lower (p
Book Synopsis The Best Way to Bond Orthodontic Brackets to Composite Restoration by : Hasan Sabah
Download or read book The Best Way to Bond Orthodontic Brackets to Composite Restoration written by Hasan Sabah and published by LAP Lambert Academic Publishing. This book was released on 2015-12-23 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct bonding of orthodontic attachment has removed some of the esthetic concerns many adults previously had when considering orthodontic therapy. With an increase in adult treatment comes the challenge of direct bonding to non-enamel surface, such as composite restoration. The big problem that faces orthodontist is debonding of the brackets specially in cases when it fixed on restoration like composite. Therefore a roughened surface will need in order to bond the adhesive composite material to the substrate composite restoration, this roughness will lead to distraction, weaken and loss of integrity of the composite restoration. This study was designed to evaluate the bonding strength of three different generations of adhesive bonding and which one is better to use for bonding the orthodontic bracket to composite restoration, without doing any roughness on composite restoration surface and compare between them which one have better bonding strength with composite restoration.
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 Determining the Effect of Primekote Bracket Conditioner on Orthodontic Bond Strength by : Gary L. Jennings
Download or read book Determining the Effect of Primekote Bracket Conditioner on Orthodontic Bond Strength written by Gary L. Jennings and published by . This book was released on 1999 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The Effect of Phosphoric Acid Etch in Conjunction with Self-etching Primer on Enamel Surfaces and Resultant Orthodontic Bracket Bond Strength by : Michael Bruce Olsen
Download or read book The Effect of Phosphoric Acid Etch in Conjunction with Self-etching Primer on Enamel Surfaces and Resultant Orthodontic Bracket Bond Strength written by Michael Bruce Olsen and published by . This book was released on 2013 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the methods of preparing the enamel surface for orthodontic bracket adhesion in overcoming pellicle and possible fluid contamination from prebonding cleaning techniques and the effect of these treatments on the enamel surface and resultant bond strength. Shear bond strength testing, Raman linear mapping, and scanning electron microscopy was used to evaluate shear bond strength, depth of resin interface, and surface and cross-sectional characteristics respectively. Based on an analysis of variance (a=.05), there was a significant effect of pretreatment enamel conditioning prior to self-etching primer application on shear bond strength. This difference was found to exist solely between the pumice prophylaxis group and the 34% phosphoric acid etch group. No difference was found to exist across all groups with regards to depth of resin penetration. Scanning electron microscopy showed no significant differences in enamel surface or resin/enamel interface characteristics. Results suggest that enamel cleaning techniques prior to SEP application are unnecessary and even deleterious to bond strength and resin penetration.
Book Synopsis An Investigation Into the Bonding of Orthodontic Brackets to Enamel by : Anthony J. Ireland
Download or read book An Investigation Into the Bonding of Orthodontic Brackets to Enamel written by Anthony J. Ireland and published by . This book was released on 1987 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Scanning Electron Microscopic Examination of Enamel Surface Changes Under Orthodontic Bands by : Alan Thorley Christiansen
Download or read book A Scanning Electron Microscopic Examination of Enamel Surface Changes Under Orthodontic Bands written by Alan Thorley Christiansen and published by . This book was released on 1971 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Acidic Pretreatment Solutions on the Direct Bonding of Orthodontic Brackets to Enamel by : Richard David Mulholland
Download or read book The Effect of Acidic Pretreatment Solutions on the Direct Bonding of Orthodontic Brackets to Enamel written by Richard David Mulholland and published by . This book was released on 1967 with total page 150 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 Factors which Influence the Bonding of Orthodontic Brackets to Enamel by : Rania Hadad
Download or read book Factors which Influence the Bonding of Orthodontic Brackets to Enamel written by Rania Hadad and published by . This book was released on 2005 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt:
