Effect Of Surface Treatments On Resin Zirconia Bonding

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Effect of Surface Treatments on Resin-Zirconia Bonding

Author : Fung Yan
Publisher :
ISBN 13 : 9781361026229
Total Pages : pages
Book Rating : 4.0/5 (262 download)

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Book Synopsis Effect of Surface Treatments on Resin-Zirconia Bonding by : Fung Yan

Download or read book Effect of Surface Treatments on Resin-Zirconia Bonding written by Fung Yan and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Effect of Surface Treatments on Resin-zirconia Bonding" by Fung, Yan, 忻峰, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Zirconia offers a favorable choice for esthetic indirect dental restorations with excellent mechanical properties and biocompatibility. In the hostile oral environment, the longevity of dental restorations relies heavily on whether a strong and stable bond between the restoration and underlying supporting tooth structures can be achieved. However, unlike conventional ceramics, zirconia is a chemically inert material which makes it notoriously difficult to bond with any dental composite resin cement. This thesis aimed at developing and evaluating different zirconia surface pretreatments for improving the resin-zirconia bonding. The first laboratory experiment evaluated the effect of Er, Cr: YSGG laser treatment on topographic changes of zirconia surface. Laser parameters including power, irradiation time and water spray at different levels were tested and the treated zirconia surfaces were assessed by scanning electron microscope (SEM) and atomic force microscope (AFM). Results showed that all three tested laser parameters could affect the topographic changes of zirconia surface. Significant topographic changes were found when the power was set at 3.0 W with 50% water spray for 120 s or the power was set at 4.0 W with 75% water spray for 60 s. The second experiment evaluated the effects of grit-blasting (sandblasting), selective infiltration etching (SIE), 3.0 W and 4.0 W laser zirconia surface treatments on the resin-zirconia bonding. Resin composite was bonded to the treated zirconia which was then sectioned into resin-zirconia micro-beams of a standard size. Microtensile bond strength (MTBS) tests were performed for adhesion strength testing. In dry storage conditions, SIE, grit-blasting and 3.0 W laser groups showed significantly higher MTBSs than the control group while no difference in MTBSs was found between the 4.0 W laser group and the control group. After water storage, SIE treatment showed significant higher MTBSs than the remaining groups. MTBSs of water storage specimens were significantly less than the dry specimens except the ones in 4.0 W groups. Zirconia surface treatments could enhance the resin-zirconia bonding in dry storage conditions. The SIE treatment appeared to provide the strongest resin-zirconia adhesion despite hydrolytic degradation. The third experiment evaluated the fatigue performance of resin-zirconia bonding with different surface treatments. Resin-zirconia beams were prepared and loaded at 36 N with 1.5 Hz frequency for 104 cycles at room temperature, before sectioned for MTBS tests. In dry storage conditions, SIE and grit-blasting groups showed significantly higher MTBSs than the control group while no differences in MTBSs were found among the 3.0 W, 4.0 W and control groups. After fatigue loading, only the SIE and 3.0 W groups showed significantly lower MTBSs while the other groups did not. After water storage, MTBSs of water storage specimens were significantly less than the dry specimens except the ones in SIE and 4.0 W groups. No significant differences in MTBSs were found in all groups after fatigue loading. The SIE group showed significantly higher MTBSs than the other study groups after water storage and fatigue loading. In general, it could be concluded that water and cyclic fatigue environment could affect the resin-zirconia bonding. Subjects: Dental resins Dental bonding Surface treatments Zirconium oxide

Effect of Surface Treatments on Resin-zirconia Bonding

Author : 忻峰
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.:/5 (938 download)

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Book Synopsis Effect of Surface Treatments on Resin-zirconia Bonding by : 忻峰

Download or read book Effect of Surface Treatments on Resin-zirconia Bonding written by 忻峰 and published by . This book was released on 2015 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Exploring the Role of Zirconia Surface Treatments on the Properties and the Material's Bonding to Resin Cement

Author : Mahmood Abu Ruja'
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Exploring the Role of Zirconia Surface Treatments on the Properties and the Material's Bonding to Resin Cement by : Mahmood Abu Ruja'

Download or read book Exploring the Role of Zirconia Surface Treatments on the Properties and the Material's Bonding to Resin Cement written by Mahmood Abu Ruja' and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Objectives: 1. To evaluate the bond strength of yttria-tetragonal zirconia polycrystalline (Y-TZP), lithium-disilicate, and feldspathic ceramics to 10-methacryloyloxydecyl dihydrogen phosphate (MDP)-containing and non-MDP resin cements. 2. To evaluate the effect of ultrashort-pulse laser (UPL) on surface treatment on Y-TZP surface properties, the material's bond strength to resin cement, and the effect of thermal stress on bond strength. Methods: Lithium-disilicate (LD), feldspathic porcelain (FP), and Y-TZP blocks received surface treatment according to the manufacturer recommendations (LD and FP: hydrofluoric acid, Y-TZP: alumina-blasting), and were luted to human dentin using MDP-containing (UL) or non-MDP adhesive system (UN). Specimens were microtensile tested. Fully-sintered Y-TZP received either no treatment (CTL) or one treatment of: ALB, SIL, or UPL. UPL consisted of either dots (LSD) or lines (LSL) patterns. Surface roughness, contact angle, and crystalline phases were evaluated. Y-TZP were cemented to composite using resin-based cement combined with a silane and MDP-containing adhesive. Specimens were incubated for 48 hours, then microtensile tested directly or after thermocycling. Results: The type of ceramic and the resin cement both had significant effects on bond strength (P≤.001). Y-TZP showed significantly lower bond strength (p.

Some Surface Treatments for Improving the Durability of Zirconia-Based Restorations

Author : Dan Liu
Publisher :
ISBN 13 : 9781361353905
Total Pages : pages
Book Rating : 4.3/5 (539 download)

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Book Synopsis Some Surface Treatments for Improving the Durability of Zirconia-Based Restorations by : Dan Liu

Download or read book Some Surface Treatments for Improving the Durability of Zirconia-Based Restorations written by Dan Liu and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Some Surface Treatments for Improving the Durability of Zirconia-based Restorations" by Dan, Liu, 刘丹, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Zirconia has now been increasingly used in modern dental prosthetic practice due to its high mechanical strength, good esthetics, and excellent biocompatibility. However, the application of zirconia-based dental restorations is still constrained by its chemical inertness and the resultant relatively weak bonding properties, including porcelain to zirconia bonding, and resin to zirconia bonding. Therefore, many investigations have been carried out on the development of an effective method of surface modification on zirconia for improving its bonding ability. The aim of this laboratory study was to evaluate the effects of some new modified surface treatments on the adhesion durability of dental zirconia prosthetic system. In Part I and Part II, the application of laser surface treatment was examined. Laser energy was utilized and applied on zirconia surface before porcelain veneering procedure. Its influence on porcelain zirconia integration interface was mechanically tested and compared with sandblasting treatment. The changes in porcelain zirconia shear bond strength and mechanical strength values of zirconia with the modulation of output energy were recorded. In Part III and Part IV, several types of coating treatment, such as tribochemical approach, silica powder coating, and zirconium silicate coating, were compared with their effects on resin zirconia bonding. The changes in resin zirconia shear bond strength under different aging conditions were observed. The elemental analysis was also performed for clarifying the chemical composition of zirconia surface. The application of laser produced a flake-like micro-retentive structure on zirconia surface. Laser irradiation with the output energy higher than 11.3 W/cm2 was effective in increasing porcelain to zirconia bond strength values. The biaxial flexural strength of zirconia was not significantly affected by laser irradiation with the settings in this study. However, most of the laser treatments still demonstrated slightly lower flexural strength values compared with the control group. No changes in crystalline structure were detected after laser treatment with X-ray Diffraction (XRD) technique. Resin to zirconia shear bond strength was significantly increased after surface coatings. Without surface treatment the bonding between resin and zirconia was susceptible to artificial aging effects. Zirconia and silica-coating groups demonstrated the highest resistance to hydrolytic influence. On the other hand, the chemical changes of zirconia surface were still in need of clarification. It was concluded that porcelain zirconia bonding could be effectively enhanced by applying both sandblasting and a new laser irradiation approach. Laser irradiation might be a potential approach as a surface treatment for improving the quality of porcelain zirconia bonding interface. The strong and reliable resin zirconia integration could not be achieved without appropriate surface pre-treatment. This coating treatment is a promising approach for strengthening resin to zirconia adhesion. DOI: 10.5353/th_b5223979 Subjects: Zirconium oxide Dental materials

Shear Bond Strength Of Zirconia

Author : Deepak Thomas
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659475511
Total Pages : 52 pages
Book Rating : 4.4/5 (755 download)

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Book Synopsis Shear Bond Strength Of Zirconia by : Deepak Thomas

Download or read book Shear Bond Strength Of Zirconia written by Deepak Thomas and published by LAP Lambert Academic Publishing. This book was released on 2014-06-18 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book evaluated the shear bond strength of zirconia bonded to dentin specimens using a self etch dual cure resin cement after various surface treatments of zirconia. Twenty zirconia rods (3 9 2.5 mm) were prepared from zirconia blocks and assigned into 5 groups for the following surface treatments. (1) Group I: Control (C) no treatment (2) Group II: airborne-particle abrasion (APA), (3) Group III: hydrofluoric acid etching (HF), (4) Group IV: hydrofluoric acid etching followed by silanation (HF/S), and (5) Group V: application of zirconia primer(Z). Dentin Specimens were prepared from extracted molars stored in 0.5% chloramine-T. Zirconia rods were bonded to dentin using resin cement (Multilink Speed), then light polymerized. The specimens tested for failure were tested using the notched shear bond test method in a universal loading apparatus. One way ANOVA followed by Tukey HSD for cell means were used to analyze the data(=0.05). The highest values were obtained with group V (Z) (8.66 MPa) followed by group II (APA) (6.71 MPa), and group IV (HF/S) (4.41 MPa). The least values were obtained for group III (HF) (3.88 MPa) with no significant difference (P value 0.53) between grou

Effects of Two Surface Treatments on Bonding to Zirconia

Author : Eva Niu
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (426 download)

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Book Synopsis Effects of Two Surface Treatments on Bonding to Zirconia by : Eva Niu

Download or read book Effects of Two Surface Treatments on Bonding to Zirconia written by Eva Niu and published by . This book was released on 2009 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Influence of Phosphoric Acid Surface Treatment on Shear Bond Strength Durability of Resin Cement to Zirconia-base Ceramic Conditioned with Different Primers

Download Influence of Phosphoric Acid Surface Treatment on Shear Bond Strength Durability of Resin Cement to Zirconia-base Ceramic Conditioned with Different Primers PDF Online Free

Author : Eman Zuhair Alshehri
Publisher :
ISBN 13 :
Total Pages : 75 pages
Book Rating : 4.:/5 (923 download)

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Book Synopsis Influence of Phosphoric Acid Surface Treatment on Shear Bond Strength Durability of Resin Cement to Zirconia-base Ceramic Conditioned with Different Primers by : Eman Zuhair Alshehri

Download or read book Influence of Phosphoric Acid Surface Treatment on Shear Bond Strength Durability of Resin Cement to Zirconia-base Ceramic Conditioned with Different Primers written by Eman Zuhair Alshehri and published by . This book was released on 2015 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: BACKGROUND: Phosphoric acid treatment has been reported to be relevant for zirconia cleaning after contamination. However, its interaction with different primers is not well known and needs to be investigated. OBJECTIVES: To compare the shear bond strengths (SBS) of resin cement to Y-TZP after phosphoric acid pretreatment and different chemical conditioning protocols, and to test the durability of SBSs after long term storage and thermal cycling conditions. To investigate the effect of phosphoric acid 75 on the surface roughness of a yttrium-stabilized tetragonal zirconia polycrystal ceramic (Y-TZP). METHODS: Sixty bars of zirconia (30 X 5 X 2 mm) were polished and glued to acrylic tubes. Each bar received 3 different surface treatments (control, phosphoric acid and air-abrasion). The bars were randomly assigned into five groups according to different primers applied (No primer, Clearfil ceramic primer, Monobond Plus, Z-prime plus and AZ primer). After that, resin cement was mixed, injected into a mold, and light cured. The specimens were tested in shear on a universal testing machine. Half of the specimens were tested after 24 h water storage and the other half were tested after 90 days of water storage and thermocycling. Non-contact profilometer was used to assess the effect of the three surface pretreatments on surface roughness of zirconia. Mode of failure and surface roughness were evaluated with SEM. Statistical analyses were conducted with mixed-model ANOVA and chi-square tests. RESULTS: The results indicated that Monobond Plus primer showed higher SBS after phosphoric acid treatment compared to other primers used. SBS of all air abrasion groups were higher than phosphoric acid groups. Long term water storage and thermocycling led to a statistically significant decrease in SBS for all groups except Monobond Plus, Z-prime plus and AZ primer after air abrasion treatment. Surface roughness measurements showed no significant differences among the surface treatments. CONCLUSION: Monobond Plus provided the highest SBS to zirconia after phosphoric acid treatment. The findings suggest that the air abrasion is the best surface treatment after contamination of zirconia surface. Monobond Plus, Z-prime plus and AZ primer showed durable SBS after air abrasion treatment and aging process.

Science and Technology of Zirconia II

Author : Manfred Rühle
Publisher :
ISBN 13 :
Total Pages : 866 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Science and Technology of Zirconia II by : Manfred Rühle

Download or read book Science and Technology of Zirconia II written by Manfred Rühle and published by . This book was released on 1984 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Effect of Surface Treatments on Shear Bond Strengths of Different Resin Cements and a Composite Core Material

Author :
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis The Effect of Surface Treatments on Shear Bond Strengths of Different Resin Cements and a Composite Core Material by :

Download or read book The Effect of Surface Treatments on Shear Bond Strengths of Different Resin Cements and a Composite Core Material written by and published by . This book was released on 2014 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effect of Surface Treatments and Cyclic Fatigue on Mechanical Properties and Shear Bond Strength to Zirconia

Author : Alaaeldin Elraggal
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (126 download)

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Book Synopsis Effect of Surface Treatments and Cyclic Fatigue on Mechanical Properties and Shear Bond Strength to Zirconia by : Alaaeldin Elraggal

Download or read book Effect of Surface Treatments and Cyclic Fatigue on Mechanical Properties and Shear Bond Strength to Zirconia written by Alaaeldin Elraggal and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Influence of Surface Treatment on Veneering Porcelain Shear Bond Strength to Zirconia After Cyclic Loading

Author : Atsushi Nishigori
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (111 download)

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Book Synopsis Influence of Surface Treatment on Veneering Porcelain Shear Bond Strength to Zirconia After Cyclic Loading by : Atsushi Nishigori

Download or read book Influence of Surface Treatment on Veneering Porcelain Shear Bond Strength to Zirconia After Cyclic Loading written by Atsushi Nishigori and published by . This book was released on 2013 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statement of problem: Yttria-partially stabilized tetragonal zirconia polycrystal (Y-TZP) all-ceramic restorations have been reported to suffer from chipping or cracking of the veneering porcelain (VP) as the most common complication. There is little information in the literature regarding the influence of surface treatment on VP shear bond strength to Y-TZP after cyclic loading. Purpose of this study: The goals of this study were (1) to investigate the influence of zirconia surface treatments on veneering porcelain shear bond strength and (2) to investigate the influence of cyclic loading on the shear bond strength between VP and Y-TZP. Materials and Methods: 48 cylinder-shaped specimens (6mm in diameter and 4mm in height) were divided into 4 groups containing 12 specimens each according to the surface treatment. As a control group (C), no further treatment was applied to the specimens after grinding. Group H was heat-treated as a pretreatment according to the manufacturer's recommendations. Group S was airborne-particle abraded with 50 μm alumina (Al2O3) particles under a pressure of 0.4 MPa for 10 seconds. In the group SH, the heat-treatment was performed after the airborne-particle abrasion. A VP cylinder (2.4 mm in diameter and 2 mm in height) was applied and fired on the prepared Y-TZP specimens. The shear bond strength was tested using a universal testing machine. Six specimens from each group were subjected to fatigue (10,000cycles, 1.5Hz, 10N load) before testing. Results: The 3-way ANOVA showed no statistically significant effect of surface treatment and cyclic loading on shear bond strength. The highest mean shear bond strength was recorded for the air-particle abrasion group without cyclic loading (34.1 + 10 MPa). The lowest mean shear bond strength was the air-particle abrasion group with cyclic loading (10.7 ± 15.4 MPa). Sidak multiple comparisons procedure demonstrated cyclic loading specimens had significantly lower shear bond strength than non-cyclic loading specimens after air-particle abrasion without heat treatment (p=0.0126) Conclusion: Within the limitations of this study, (1) Shear bond strength between Y-TZP and VP is not affected statistically by surface treatment using heat treatment, airborne-particle abrasion, and heat treatment after airborne-particle abrasion. (2) There is significant difference in shear bond strength with air-particle abrasion between with and without cyclic loading groups. This difference suggested that air-particle abrasion should be avoided in clinical situations as a surface treatment without heat treatment.

Advanced Ceramics for Dentistry

Author : James Shen
Publisher : Butterworth-Heinemann
ISBN 13 : 0123948363
Total Pages : 417 pages
Book Rating : 4.1/5 (239 download)

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Book Synopsis Advanced Ceramics for Dentistry by : James Shen

Download or read book Advanced Ceramics for Dentistry written by James Shen and published by Butterworth-Heinemann. This book was released on 2013-09-05 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of implant and fixed prosthodontics practices in dentistry has created a rapidly increasing demand for advanced ceramics and ceramic processes. Innovations in ceramics and ceramic processes are vital to ensure reliable and affordable dental-restoration solutions with aesthetically pleasing outcomes. The work aims to engage the bioceramics and engineering communities to meet the challenges of modern dental restoration using advanced ceramics. Incorporating fundamental science, advanced engineering concepts, and clinical outcomes, the work is suitable for bioceramicists, ceramics manufacturers, dental clinicians and biologists. State-of-the-art-coverage encompasses bioresorbable ceramics for bone regeneration and bioactivating surfaces of inert, high-strength ceramics for implantation, keeping research knowledge appropriately updated Discusses transition from the baseline stable and physically stiff ceramics research into engineering of highly coherent laminate composites for prosthetic crowns and bridges Showcases current feasible techniques for producing, in cost-effective and materials-saving ways, long-lasting individualized ceramic components with biocompatibility, complexity and high precision

Science, Characterization and Technology of Joining and Welding

Author : Meysam Haghshenas
Publisher : MDPI
ISBN 13 : 3039289977
Total Pages : 252 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Science, Characterization and Technology of Joining and Welding by : Meysam Haghshenas

Download or read book Science, Characterization and Technology of Joining and Welding written by Meysam Haghshenas and published by MDPI. This book was released on 2020-05-22 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the Guest Editor of this Special Issue entitled "Science, Characterization, and Technology of Joining and Welding" of Metals, I am pleased to have this book published by MDPI. Joining, including welding, soldering, brazing, and assembly, is an essential requirement in manufacturing processes and is classified as a secondary manufacturing process. This Special Issue of Metals includes technical and review papers on, but not limited to, different aspects of joining and welding, including welding technologies (i.e., fusion-based welding and solid-state welding), characterization, metallurgy and materials science, quality control, and design and numerical simulation. This Special Issue also includes the joining of different materials, including metal and non-metals (polymers and composites), including 17 peer-reviewed papers from several researchers all around the globe (China, Germany, Brazil, South Koria, Slovakia, USA, Taiwan, Canada, and India). As of this date (April 2020), the papers in this Special Issue have been cited 47 times by other researchers, which I think is an eminent number and shows the high quality of the published papers in this Issue. This Special Issue includes a large diversity of various subjects in the field of joining: laser welding, friction stir welding, diffusion bonding, multipass welding, rotary friction-welding, friction bit joining, adhesive bonding, weldbonding, simulation and experimentation, metal/FRP joints, welding simulation, plasma–TIG coupled arc welding, liquation cracking, soldering, resin bonding, microstructural characteristics, brazing, and friction stir butt and scarf welding. I would like to sincerely thank all the researchers who contributed to this Special Issue for their high-quality research. I also would like to acknowledge Mr. Toliver Guo, Senior Assistant Editor at MDPI, who continuously and tirelessly contributed toward this Special Issue by assisting me with inviting the authors and the follow ups. I think this Special Issue will enhance our knowledge and understanding in the field of joining and assembly. I would like to dedicate this book to my wife, Mehrnoosh, for her continued support and encouragement.

Bonding to Ceramics

Author : Alvaro Della Bona
Publisher :
ISBN 13 : 9788536700915
Total Pages : 252 pages
Book Rating : 4.7/5 (9 download)

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Book Synopsis Bonding to Ceramics by : Alvaro Della Bona

Download or read book Bonding to Ceramics written by Alvaro Della Bona and published by . This book was released on 2009 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bonding to Ceramics provides students, researchers and clinicians with detailed knowledge of ceramic structures, adhesion mechanisms, quality research design, material selection and clinical performance of dental ceramics. Based on collaborative research efforts and evidence-based clinical data, this book describes the basic properties of ceramics and the applications, failures and limitations of this material. The book features 500 clinical images, many of them in 3D, to aid the understanding of: ceramic microstructures; the basic principles and properties of ceramics; clinical applications and causes of failure. It also discusses the development of experiments to test ceramic designs, how to select the appropriate material according to the specific clinical application, as well as evidence regarding adhesive mechanisms for bonding ceramic restorations. Through examining clinical failures, the book also aims to improve clinical performance through the suggestion of improved materials, structures and designs. The ultimate aim of this book therefore is to provide the reader with the knowledge to be able to select the appropriate ceramic material and bonding technique for each clinical application.

Advanced Dental Biomaterials

Author : Zohaib Khurshid
Publisher : Woodhead Publishing
ISBN 13 : 0081024770
Total Pages : 758 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Advanced Dental Biomaterials by : Zohaib Khurshid

Download or read book Advanced Dental Biomaterials written by Zohaib Khurshid and published by Woodhead Publishing. This book was released on 2019-05-24 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Dental Biomaterials is an invaluable reference for researchers and clinicians within the biomedical industry and academia. The book can be used by both an experienced researcher/clinician learning about other biomaterials or applications that may be applicable to their current research or as a guide for a new entrant into the field who needs to gain an understanding of the primary challenges, opportunities, most relevant biomaterials, and key applications in dentistry. Provides a comprehensive review of the materials science, engineering principles and recent advances in dental biomaterials Reviews the fundamentals of dental biomaterials and examines advanced materials’ applications for tissues regeneration and clinical dentistry Written by an international collaborative team of materials scientists, biomedical engineers, oral biologists and dental clinicians in order to provide a balanced perspective on the field

Effect of Surface Treatment on the Shear Bond Strength of CAD/CAM Ceramic Materials Part II

Author : Lena Rupp
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Effect of Surface Treatment on the Shear Bond Strength of CAD/CAM Ceramic Materials Part II by : Lena Rupp

Download or read book Effect of Surface Treatment on the Shear Bond Strength of CAD/CAM Ceramic Materials Part II written by Lena Rupp and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Influence of Saliva Contamination on Resin Bond Durability to Zirconia - Effect of Cleaning Methods

Author : Dhara Patel
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (927 download)

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Book Synopsis Influence of Saliva Contamination on Resin Bond Durability to Zirconia - Effect of Cleaning Methods by : Dhara Patel

Download or read book Influence of Saliva Contamination on Resin Bond Durability to Zirconia - Effect of Cleaning Methods written by Dhara Patel and published by . This book was released on 2015 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background and Rationale: As compared with glass-based ceramics, zirconia has gained considerable popularity in restorative dentistry due to its superior mechanical properties. Clinically, however, zirconia ceramics pose a significant challenge regarding the achievement of a reliable and durable bond to resin-based cements. Thus far, it has been established that zirconia bond to resin-based cements can be enhanced after different surface conditioning methods, such as airborne particle abrasion with aluminum oxide particles. Meanwhile, another major issue pertaining to bonding of ceramic restorations is related to its potential contamination before cementation. Briefly, after sandblasting and clinical try-in procedures, zirconia can be contaminated with saliva and/or blood. As with many metals, zirconium shows a strong affinity towards the phosphate group found in saliva and other fluids, which reacts with the zirconia surface and makes bonding very difficult. Recently, a new cleaning agent called Ivoclean (Ivoclar-Vivadent), which is an alkaline suspension of zirconium oxide particles, has been introduced in the market to remove contamination from zirconia in an effort to improve bonding to resin cements. Objective: The purpose of this study was to evaluate the influence of saliva contamination and the effect of several cleaning methods, including Ivoclean on resin bond strength to zirconia. Materials and Methods: Eighty square-shaped specimens (phi = 12 mm x 12 mm x 3 mm) of yttria-stabilized full-contour zirconia (Diazir, Ivoclar-Vivadent, Amherst, NY) were sectioned from zirconia blocks using a water-cooled diamond blade. Then, these specimens were embedded in acrylic resin, and their surfaces gradually finished with silicon carbide papers (600 grit to 1200 grit). The prepared zirconia surfaces were sandblasted with 50-microm aluminum oxide particles for 15 s, under 2.5 bars and from distance of 10 mm. After sandblasting the specimens were cleaned in an ultrasonic bath containing distilled water for 5 min and air-dried for 10s. All samples were equally divided into 4 groups (n = 20) according to the cleaning method. Airborne particle abraded specimens without contamination was served as the control group. Remaining groups were contaminated with saliva, and subjected to different cleaning protocols, namely: Ivoclean, 70% isopropanol, and no treatment. Two resin cement buttons (Multilink - Ivoclar-Vivadent, Amherst, NY) were built over each zirconia surface and light-cured following the manufacturer recommendations. The influence of contamination and surface cleaning methods on ceramic bond durability were examined after 24 h on half of the samples in each group (n = 10, n = 20), and the other half (n = 10, n = 20) specimens will undergo 6000 thermocycles (TC) before shear bond testing in the universal testing machine. Conclusion of Expected Outcomes: The shear bond strength of resin cement to zirconia led to a significant improvement after cleaning with Ivoclean both immediately and after thermal aging.