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Fracture Load Of Machined Y Tzp Zirconia Fixed Dental Prosthesis Frameworks Fabricated With Different Cad Cam Systems
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Book Synopsis Fracture Load of Machined Y-TZP Zirconia Fixed-dental-prosthesis Frameworks, Fabricated with Different CAD/CAM Systems by : Lina Elisabet Hallberg
Download or read book Fracture Load of Machined Y-TZP Zirconia Fixed-dental-prosthesis Frameworks, Fabricated with Different CAD/CAM Systems written by Lina Elisabet Hallberg and published by . This book was released on 2012 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Load-to-fracture and Strain Analysis of Monolithic Zirconia Cantilevered Frameworks by : Faris Alshahrani
Download or read book A Load-to-fracture and Strain Analysis of Monolithic Zirconia Cantilevered Frameworks written by Faris Alshahrani and published by . This book was released on 2016 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fixed implant-retained cantilevered restorations for edentulous patients have been successfully used in implant dentistry. In recent years, with the improvements in CAD/CAM technology, zirconia has been in use as a more affordable alternative to metal frameworks for fixed restorations due to the rising cost of noble metals. The dimensions of implant-retained fixed cantilevered dentures are important to prevent mechanical and biological complications. Information on the optimum thickness and cantilever length for improved strength of zirconia frameworks is limited in the literature. The aim of this study was to investigate the effect of cantilever length and occlusocervical thickness on the load-to-fracture and strain distribution of zirconia frameworks. Twenty-seven rectangular prism-shaped specimens (6 mm thick buccolingually) were fabricated using a CAD/CAM milling technique. Specimens were prepared in 9 groups (n=3) according to their vertical dimensions (6×6 mm, 8×6 mm and 10×6 mm) and cantilever loading distance (7 mm, 10 mm and 17 mm). All specimens were heat-treated in a porcelain furnace and thermocycled for 20000 cycles before the tests. Each framework was secured using a clamp attached to the first 20 mm of the framework. Three-dimensional image correlation (3D-DIC) technique was used for a full-field measurement of strain during testing. A load-to-fracture test was used until the specimens fractured. Maximum force and the principal strain data were analyzed by ANOVA using the maximum likelihood estimation method. The frameworks tested in this study fractured at load values ranging from 1065 - 8870 N. The effect of occluso-cervical thickness and cantilever length was significant for the load-to-fracture (P
Book Synopsis Comparison of the Fit of Y-TZP Copings Fabricated with Different CAD/CAM Systems by : Manlio Zuniga
Download or read book Comparison of the Fit of Y-TZP Copings Fabricated with Different CAD/CAM Systems written by Manlio Zuniga and published by . This book was released on 2007 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dental Clinics of North America by :
Download or read book Dental Clinics of North America written by and published by . This book was released on 2004 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fracture Load of Three-unit Zirconia Fixed Dental Prostheses Veneered with Different Materials and Techniques by : M. Sad Chaar
Download or read book Fracture Load of Three-unit Zirconia Fixed Dental Prostheses Veneered with Different Materials and Techniques written by M. Sad Chaar and published by . This book was released on 2012 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
Book Synopsis In Vitro Fit and Distortion of CAD/CAM-fabricated Implant-fixed Titanium and Zirconia Complete Dental Prostheses Frameworks by : Hadi AL-Meraikhi
Download or read book In Vitro Fit and Distortion of CAD/CAM-fabricated Implant-fixed Titanium and Zirconia Complete Dental Prostheses Frameworks written by Hadi AL-Meraikhi and published by . This book was released on 2015 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results: Results showed that the material type (zirconia or titanium) was not significant for 3D gap measurements (p=.9038). However, 3D gap measurement values were significantly different between Gap 3 and 4 within each group (P=.0003). The mean 3D gap measurement for Gap 2 for titanium was 48.2 μm (SD 2.6). The mean 3D gap measurement for Gap 3 for titanium was 74.0 μm (SD 15.0) and 84.4 μm (SD 12) for zirconia. The mean 3D gap measurement for Gap 4 for titanium was 102 μm (SD 26.7) and 93.8 μm (SD 30) for zirconia. All 3D gap measurements showed values
Book Synopsis The Glossary of Prosthodontic Terms by :
Download or read book The Glossary of Prosthodontic Terms written by and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparison of Load-to-fracture Values and Fracture Characterization of Monolithic Zirconia, Lithium Disilicate, and Zirconia-reinforced Lithium Silicate Glass-ceramic CAD/CAM Crowns by : Afnan Kashkari
Download or read book Comparison of Load-to-fracture Values and Fracture Characterization of Monolithic Zirconia, Lithium Disilicate, and Zirconia-reinforced Lithium Silicate Glass-ceramic CAD/CAM Crowns written by Afnan Kashkari and published by . This book was released on 2016 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: All-ceramic monolithic crowns have been extensively used in prosthodontics in recent years for their excellent advantages compared to traditional metal-based restorations. In the oral environment, ceramic restorations are susceptible to cyclic fatigue failure, mainly due to the presence of cyclic masticatory forces together with the moist environment. The purpose of the study was to compare the integrity of zirconia, lithium disilicate, and zirconia-reinforced lithium silicate monolithic CAD/CAM crowns after being subjected to cyclic loading in a wet condition and then subjected to static loading until fracture. A fiberglass master die replica was used to fabricate (1) zirconia (Zirkonzahn, South Tyrol, Italy), (2) lithium disilicate (LDS, IPS e.max® CAD, Ivoclar Vivadent AG, Schaan / Liechtenstein), and (3) zirconia-reinforced lithium silicate glass ceramic (ZLS), Vita suprinity, VITA Zahnfabrik, Bad Sackingen, Germany) monolithic crowns that were milled using CAD/CAM technology. The crowns were bonded according to manufacturer instructions and subjected to cyclic loading (10,000 and 50,000 cycles) under wet conditions. Representative specimens from each group were examined using SEM. Analysis of the recorded load-to-fracture values was carried out with two-way (ANOVA) followed by the Tukey-Kramer post hoc test (a=.05). The mean of load-to-fracture values measured were 3232.27 N for 10,000-cycle LDS, 3510.62 N for 50,000-cycle LDS, 1207.69 N for 10,000-cycle ZLS, 761.20 N for 50,000-cycle ZLS, 4967.29 N for 10,000-cycle zirconia, and 5041.99 N for 50,000-cycle zirconia. All mean load-to-fracture values were statistically significantly different (p .05). However, there was no statistical influence of the number of cycles on the load-to-fracture of test crowns (p .05). Load-to-fracture values of Zirconia and LDS CAD/CAM crowns were above the reported clinical posterior occlusal forces (720 N according to Gibbs et al.) and ZLS load-to-fracture values were closest to the average posterior occlusal force value. Further clinical and laboratory investigation are needed on the use of ZLS ceramic.
Book Synopsis Digital Workflow in Reconstructive Dentistry by : Wael Att
Download or read book Digital Workflow in Reconstructive Dentistry written by Wael Att and published by Quintessenz Verlag. This book was released on 2021-02-01 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital Workflow in Reconstructive Dentistry is the result of efforts made by the academic team at the Department of Prosthodontics, University Hospital of Freiburg. It aims to build a fundamental understanding of the general principles, science, and clinics of digital dental medicine. The information provided within these pages summarizes the various components of the digital workflow in reconstructive dentistry and discusses their advantages and disadvantages. Moreover, insights are provided about upcoming, game-changing technologies. By reading this book, students, clinicians, and researchers will gain and enhance their knowledge about digital dental medicine and identify the areas they need to focus on next in order to integrate the available technologies in their daily work. Clearly, the path of digital dental medicine will not stop here. Contributors Amirah M. R. Alammar • Abdulaziz Alsahaf • Wael Att • Maria Bateli • Jasmin Bernhart • Shaza Bishti • Sarah Blattner • Miha Brezavšček • Sandy Cepa • Nadine Emmanoulidi • Ahmed Fawzy • Manrique Fonseca • Michele Frapporti • Rumpa Ganguly • Yousef Al-Ghamdi • Petra Ch. Gierthmuehlen • Aiste Gintaute • Ulrich Lamott • Christos Lamprinos • Matthias Petsch • Udo Plaster • Aikaterini Ploumaki • Hanna Rauberger • Elisabeth Schwartzkopff • Christian F. Selz • Thamer Al-Sharif • Benedikt Spies • Frank A. Spitznagel • Jörg R. Strub • Michael Swain • Taskin Tuna • Alexander Vuck • Siegbert Witkowski
Book Synopsis Fixed Restorations by : Irena Sailer
Download or read book Fixed Restorations written by Irena Sailer and published by Quintessenz Verlag. This book was released on 2021-07-01 with total page 1858 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Fixed Restorations: A Clinical Guide to the Selection of Materials and Fabrication Technology, the authors Irena Sailer, Vincent Fehmer, and Bjarni Pjetursson have created a timely and comprehensive guide to modern reconstructive dentistry. The book is divided into four parts: basic information regarding materials and production processes, step-by-step clinical procedures with extensive case presentations, long-term outcomes, and management of complications. With over 2000 clinical images and diagrams, backed up with the scientific evidence for recommendations, the best practice for tooth- and implant-supported fixed restorations is clearly described. The vast clinical and technical knowledge and experience of the authors has resulted in a unique textbook that will aid in decision making regarding material selection and procedures for all patients in need of fixed restorations.
Book Synopsis An in Vitro Evaluation of Fracture Load of Implant‐supported Zirconia‐based Prostheses Fabricated with Different Veneer Materials by :
Download or read book An in Vitro Evaluation of Fracture Load of Implant‐supported Zirconia‐based Prostheses Fabricated with Different Veneer Materials written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Implant Prosthodontics by : Patrick J. Stevens
Download or read book Implant Prosthodontics written by Patrick J. Stevens and published by . This book was released on 2000 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: With 757 illustrations, IMPLANT PROSTHODONTICS provides a practical, illustrative manual on the construction of dental implants. It features a strong treatment planning emphasis and provides benefits and rationales for all laboratory and clinical facets. It also builds on the thorough coverage of the history of implants, the emergence of the Branemark system, and the evaluation of other dental implant systems while maintaining the practical and readable style peer reviewers and users have praised. * Provides thorough coverage of the history of implants, the emergence of the Branemark system, and the evaluation of other dental implant systems. * Features a strong treatment planning emphasis and provides benefits/rationales for all laboratory and clinical facets. * Maintains the practical and readable style peer reviewers and users have praised. * Includes 700 illustrations, all in full color, showing the reader proper procedures for dental implants. * Features highly respected author team of Drs. Patrick Stevens and Edward Fredrickson with dental ceramic expert Maurice Gress for the latest developments in implant prosthodontics. * Includes contribution from Dr. Fredrickson, the first US dentist in private practice to be trained in and to employ the Branemark system of osseointegrated dental implants for edentulous patients.
Book Synopsis Advances in Ceramics by : Costas Sikalidis
Download or read book Advances in Ceramics written by Costas Sikalidis and published by BoD – Books on Demand. This book was released on 2011-09-06 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current book consists of twenty-four chapters divided into three sections. Section I includes fourteen chapters in electric and magnetic ceramics which deal with modern specific research on dielectrics and their applications, on nanodielectrics, on piezoceramics, on glass ceramics with para-, anti- or ferro-electric active phases, of varistors ceramics and magnetic ceramics. Section II includes seven chapters in bioceramics which include review information and research results/data on biocompatibility, on medical applications of alumina, zirconia, silicon nitride, ZrO2, bioglass, apatite-wollastonite glass ceramic and b-tri-calcium phosphate. Section III includes three chapters in applications of ceramics in environmental improvement and protection, in water cleaning, in metal bearing wastes stabilization and in utilization of wastes from ceramic industry in concrete and concrete products.
Book Synopsis State of the Art of CAD/CAM Restorations by : Werner H. Mörmann
Download or read book State of the Art of CAD/CAM Restorations written by Werner H. Mörmann and published by Quintessence Publishing Company. This book was released on 2006-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Critical aspects of the art, science, education and economy of CEREC in dental and laboratory practice were discussed during the 20YC Symposium in Berlin, March 17-18, 2006, and the contributions of researcher, practitioners and dental laboratory technicians are documented in these proceedings.
Book Synopsis Fracture Resistance of Zirconia Oral Implants in Vitro: a Systematic Review and Meta-analysis by : Annalena Bethke
Download or read book Fracture Resistance of Zirconia Oral Implants in Vitro: a Systematic Review and Meta-analysis written by Annalena Bethke and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Various protocols are available to preclinically assess the fracture resistance of zirconia oral implants. The objective of the present review was to determine the impact of different treatments (dynamic loading, hydrothermal aging) and implant features (e.g., material, design or manufacturing) on the fracture resistance of zirconia implants. An electronic screening of two databases (MEDLINE/Pubmed, Embase) was performed. Investigations including > 5 screw-shaped implants providing information to calculate the bending moment at the time point of static loading to fracture were considered. Data was extracted and meta-analyses were conducted using multilevel mixed-effects generalized linear models (GLMs). The Šidák method was used to correct for multiple testing. The initial search resulted in 1864 articles, and finally 19 investigations loading 731 zirconia implants to fracture were analyzed. In general, fracture resistance was affected by the implant design (1-piece > 2-piece, p = 0.004), material (alumina-toughened zirconia/ATZ > yttria-stabilized tetragonal zirconia polycrystal/Y-TZP, p = 0.002) and abutment preparation (untouched > modified/grinded, p
Book Synopsis Long-term Stability and Resistance to Fracture by : Abdul Aziz Al-Sahhaf
Download or read book Long-term Stability and Resistance to Fracture written by Abdul Aziz Al-Sahhaf and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Zusammenfassung: AbstractObjectiveTo investigate the survival rate, fracture strength, bending moments, loading to fracture and fracture modes of different designs of zirconia abutments after dynamic loading with thermocycling, and compare these values to titanium abutments.MethodsA total of 80 abutment samples were divided into 5 test groups of 16 samples in each group. The study included the following groups, Group 1: CAD/CAM produced all-zirconia abutments, Group 2: titanium abutments, Group 3 zirconia-abutments adhesively luted to a titanium base, Group 4: prefabricated all-zirconia abutments and Group 5: zirconia-abutments glass soldered to a titanium base. Half the number of samples in each group was exposed to 1.2 million loading cycles (5-years simulation) in the chewing simulator. The samples that survived the artificial aging were later tested for fracture strength in a universal testing machine. The remaining 8 samples of the group were directly tested for fracture strength.ResultsAll samples exposed to the 5-years artificial aging survived except of six samples in one group (Group 1). The surviving samples were later fracture tested in the universal testing machine. The bending moments (Ncm) values were as follow: Exposed groups: Group 1: 94.5 Ncm; Group 2: 599.2 Ncm; Group 3: 477.5 Ncm; Group 4: 314.4 Ncm; Group 5: 509.4 Ncm. Non-exposed groups: Group 1: 269.3 Ncm; Group 2: 474.2 Ncm; Group 3: 377.6 Ncm; Group 4: 265.4 Ncm; Group 5: 372.4 Ncm. Except in Group 1, the values were higher in the exposed groups, although, statistically there was no difference (p>0.05). The one-piece ZrO2-abutment group (Group 1 and Group 4) exhibited lower values, while the two-piece ZrO2-abutment groups (Group 3 and Group 5) showed similar values and fracture modes like the titanium abutment group. The titanium abutment group showed the highest values of bending moments among all groups.ConclusionThe implant-abutment connection area appeared to influence the bending moment value and the fracture mode of the tested abutment groups, and it was found to be the weakest part of an internal connection one-piece zirconia abutment. The titanium base in the two-piece zirconia abutment worked as a substitute for the weakest part of the abutment. Therefore, the titanium base can reinforce the fracture strength of a zirconia abutment
