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Machined Abutment Screw Loosening On External Hexagonal Connection Implant System A Preliminary In Vitro Study
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Book Synopsis Machined Abutment Screw Loosening on External Hexagonal-connection Implant System- A Preliminary in Vitro Study by : Luis Fernando Felix
Download or read book Machined Abutment Screw Loosening on External Hexagonal-connection Implant System- A Preliminary in Vitro Study written by Luis Fernando Felix and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: The mechanics of implant screw loosening or fracture are well understood in the field of engineering. Due to the several factors involved, they have not been as widely explored in dentistry. The current knowledge about the role of the implant external hexagon is incomplete. Two of the factors that seem to influence in this complication are the type of connection and the angulation of the implant.Aim: The aim of this preliminary in vitro study was to investigate the effect of abutment screw loosening of an external hexagon implant system when a cyclic loading was applied.Material and Methods: Twelve Mozo Grau Osseous u00ae (External Hexagonal Connection System) (3, 75 x 11, 5 mm) implants were divided into groups A and B. Group A included six 0u02da(4 mm) implant abutments and group B included six 15u02da(4 mm) implant abutments. Each implant assembly was tightened using an implant motor (IChiroPro Bien Airu00ae) to 30 Newton centimeters (Ncm) and placed on a custom made implant fixing jig. Cyclic loading was applied (200 N of force at a frequency of 2 Hz for 300, 000 cycles) (12 months of simulated function). Reverse torque was recorded before and after loading. After cyclic loading, the reverse torque value (RTV) data were analyzed using Wilcoxon signed-rank test (p
Book Synopsis A Preliminary in Vitro Study of Machined Abutment Screw Loosening on Internal Morse Taper-connection Implants by : Michell Medina
Download or read book A Preliminary in Vitro Study of Machined Abutment Screw Loosening on Internal Morse Taper-connection Implants written by Michell Medina and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Screw loosening has been reported as one of the most frequent complications in implant supported single crowns. Nevertheless, the factors that influence in this mechanism have not been clearly established. Rigorous efforts to reduce the recurrence of abutment screw loosening in single-tooth implant restorations have been developed including changes in implant design, screws and abutments.Aim: The aim of this preliminary in vitro study was to analyze the screw loosening of two types of machined prefabricated abutments for internal morse taper connection implant system when a cyclic loading was applied.Material and Methods: 12 Mozo Grau Internal Implant Connection Systemu00ae (3, 75 x 11, 5 mm) implants were divided into groups A and B. Group A consisted of six 0u02da(4 mm) implant abutments and group B consisted of six 15u02da(4 mm) implant abutments. Each implant assembly was tightened using an implant motor (IChiroPro Bien Airu00ae) to 20 Newton centimeters (Ncm) and placed on a custom made implant fixing jig. Cyclic loading was applied simulating masticatory movement (300, 000 cycles / 200N / 2Hz) (equivalent to 1 year of simulated function). Reverse torque was recorded before and after loading. The reverse torque value (RTV) data were analyzed using Wilcoxon signed-rank test (p
Book Synopsis Torque Required to Loosen Surface Treated Abutment Screws Before and After Cyclic Loading by : Felipe A. Falcao
Download or read book Torque Required to Loosen Surface Treated Abutment Screws Before and After Cyclic Loading written by Felipe A. Falcao and published by . This book was released on 2001 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clinical and Laboratory Manual of Dental Implant Abutments by : Hamid R. Shafie
Download or read book Clinical and Laboratory Manual of Dental Implant Abutments written by Hamid R. Shafie and published by John Wiley & Sons. This book was released on 2014-07-09 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: To fulfill the vision for his latest book, Dr. Hamid Shafie compiled technical information from a vast variety of sources, including implant manufacturers and designers, master dental technicians, implant researchers, and expert clinicians leading the field of implant dentistry worldwide. He and his expert contributors meticulously assembled each chapter to include only the most relevant and up-to-date content and procedures in a concise and simple format. Dr. Shafie follows the same easy-to-read, easy-to-understand format as his best-selling textbook Clinical and Laboratory Manual of Implant Overdentures.Starting with the material science behind implant abutments, the text then describes all of the relevant abutment solutions, providing a step-by-step guide to design and manufacturing of the CAD/CAM abutments and explaining how to adjust prefabricated abutments and one-piece titanium and zirconia implants. In addition to offering the ultimate procedural guide for clinical and laboratory preparation of dental implant abutments, this textbook is filled with useful tips on clinical practice management such as sterilization, instrumentation and trouble-shooting related to implant abutments. Clinical and Laboratory Manual of Dental Implant Abutmentsis the only text devoted exclusively to an in-depth look at implant abutments. Every dental implant clinician, technician, student, and implant industry insider needs this vital work in their library.
Book Synopsis Dentistry, Screw Loosening Test Using Cyclic Torsional Loading for Implant Body/implant Abutment Connection of Endosseous Dental Implants by :
Download or read book Dentistry, Screw Loosening Test Using Cyclic Torsional Loading for Implant Body/implant Abutment Connection of Endosseous Dental Implants written by and published by . This book was released on 2016 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Association Between Implant Abutment Microgap and Implant Circularity to Bacterial Leakage- an in Vitro Study Using Tapered Connection Implants by :
Download or read book Association Between Implant Abutment Microgap and Implant Circularity to Bacterial Leakage- an in Vitro Study Using Tapered Connection Implants written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this study was to evaluate the microgap between the abutment and implant as well as the circularity of implant platforms and associating conformational errors with bacterial micro leakage in tapered connection implant systems. u2028Four brnads of implants with tapered abutment connection were tested. Bacterial leakage was assessed using 0.3 u00b5L of Escherichia coli suspension inoculated into the abutment screw chamber of the implants, which were then torqued and incubated at 37oC for 14 days.The same samples were than cut lengthwise, and the microgap measured at 3 points on each side using scanning electron microscopy (SEM). Microtomography was used to assess implant platform circularity to validate the SEM findings qualitatively.All implant Systems presented bacterial leakage, with no significant difference between groups. Neodent system presented the highest mean microgap values, followed by Nobel Biocare, Ankylos and Conexu00e3o, with no significant difference between groups.All systems showed conformational errors of circularity on microtomography images.u2028The tapered connection systems evaluated herein were not able to halt bacterial leakage, nor were free from conformational errors.
Book Synopsis The Influence of Crown Length on the Implant-abutment Connection - an In-vitro Study by : Aimen Bagegni
Download or read book The Influence of Crown Length on the Implant-abutment Connection - an In-vitro Study written by Aimen Bagegni and published by . This book was released on 2021* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An in Vitro Study of Corrosion at the Implant-abutment Interface by : Barry L. Marshak
Download or read book An in Vitro Study of Corrosion at the Implant-abutment Interface written by Barry L. Marshak and published by . This book was released on 1994 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Changes and Screw Loosening of the Titanium Abutments for One-piece Implant Supported Fixed Complete Denture by : Ahmad Qazali
Download or read book Surface Changes and Screw Loosening of the Titanium Abutments for One-piece Implant Supported Fixed Complete Denture written by Ahmad Qazali and published by . This book was released on 2016 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of dental implants for treating edentulous patients with implant-supported fixed complete denture (ISFCD) has shown to improve the quality of life with great success over a long period of time. While the use titanium bar with acrylic denture teeth attached to the framework with denture acrylic is most common, zirconia is utilized due to its high strength, its color and translucency are close to those of teeth, and high biocompatibility that can reduce the risk of inflammation. However zirconia is 10 times harder than titanium based on the Knoop hardness scale and the long-term damage to the junction of titanium parts and zirconia abutment has not been widely investigated. The purpose of this study was to investigate the surface changes and the screw loosening after cyclic loading in vitro for Zirconia and Titanium and to compare the surface changes and the torque value before and after loading. Total of 24 multiple-unit titanium abutments were used. Twelve straight 3 mm height abutments were used for the two anterior implants. Twelve 30 degree angle correction abutments were used for the posterior two posterior implants. The abutments were placed on the testing model and torqued to 15 Ncm and scanned prior to placement under a digital light microscope and images were acquired for all the abutments to study the surface characteristic and to confirm the absence of any damage to the surface prior to placement. Masticatory forces were simulated using a testing machine (MTS- Machine Testing Systems). Each framework was subjected to a vertical 400 N of load for 500,000 cycles at a frequency of 2 HZ (2 Cycles/second). Abutments were scanned after the loading was complete with the SEM to detect any damages to the surface and none of the abutments showed any signs of damage or wear. The torque values to loosen the screws were analyzed by an analysis of variance (ANOVA) (MIXED procedure, SAS (r) Proprietary Software 9.3, SAS Institute, Inc., Cary, NC, USA) using the maximum likelihood estimation method to eliminate the need for normality and eq. The factors were the material type(Zr or Ti), the screw location (anterior or posterior) and the screw type (prosthetic or abutment screw), with all possible interactions included in the statistical model. Results showed statistical difference on the reverse torque value for the following variables that the material type (zirconia or titanium) (p= .007), the screw type (prosthetic vs. abutment) (p
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 2160 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 Short Implants by : Boyd J. Tomasetti
Download or read book Short Implants written by Boyd J. Tomasetti and published by Springer Nature. This book was released on 2020-07-07 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive guide to short implants will take the reader through their research and development, explain the clinical indications, evaluate the outcomes achieved with various implants, and explore restorative and laboratory considerations. Short implants have steadily gained greater market share in the last decade as practitioners sought alternatives to traditional length implants in order to avoid grafting procedures. Current manufacturers offer a variety of implant lengths and widths, allowing surgeons and restorative dentists the ability to select the best implant for each clinical circumstance. Cutting edge information is provided on the research and clinical results achieved utilizing a range of implants, specifically those developed by Nobel Biocare, Straumann, Jack Hahn, and Bicon. Readers will also find an extensive description of the role of ultra-short implants involving reconstruction in both cleft patients and cancer patients who have lost portions of their mandible and/or maxilla. This book is a must-have for those interested in learning how the use of short and ultra-short implants offers both surgeons and restorative dentists an opportunity to stand out from those that use only the traditional length implants.
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 On Cobalt-chrome Frameworks in Implant Dentistry by : Lars Hjalmarsson
Download or read book On Cobalt-chrome Frameworks in Implant Dentistry written by Lars Hjalmarsson and published by Swedish Dental Assn. This book was released on 2009 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Bolts and Bolted Joints by : John Bickford
Download or read book Handbook of Bolts and Bolted Joints written by John Bickford and published by CRC Press. This book was released on 1998-04-28 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting time-tested standard as well as reliable emerging knowledge on threaded fasteners and joints, this book covers how to select parts and materials, predict behavior, control assembly processes, and solve on-the-job problems. It examines key issues affecting bolting in the automotive, pressure vessel, petrochemical, aerospace, and structura
Book Synopsis Dental Implant Materials 2019 by : In-Sung Yeo
Download or read book Dental Implant Materials 2019 written by In-Sung Yeo and published by MDPI. This book was released on 2021-03-17 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dental implant materials are advancing in the fusion of various scientific fields. Surface modification technologies for implants have been applied to titanium at the micro-level for about four decades. Now, implant surfaces are being topographically and chemically modified at both the micro- and nano-level. The modification techniques are altering other metals and ceramics, making these materials more biocompatible. Materials for abutments in dental implant systems appear to depend on implant–abutment connection structures. Biomechanical factors, such as friction and preload, influence the development of the abutment materials. Additionally, the surfaces of the abutment materials are important in the soft-tissue attachment, which is being actively investigated. As dental implants have to be functional in human bodies for a long time, numerous materials are being clinically tested as implant-supported restorations. The Special Issue, “Dental Implant Materials 2019”, introduces the creative works of scientists on the current advancements in the field of materials for implant dentistry.
Book Synopsis Evidence-Based Implant Dentistry by : Oreste Iocca
Download or read book Evidence-Based Implant Dentistry written by Oreste Iocca and published by Springer. This book was released on 2016-09-28 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all aspects of implant dentistry, presenting up-to-date information that reflects the highest level of scientific evidence as presented in the specialized literature. Among the topics addressed by expert authors are the prognosis of natural tooth versus implant restorations, bone response to implant treatment, placement and loading time, implant design and length, platform design, implant abutments, prosthodontic treatment, reconstructive surgery, and periimplantitis. The amount of data available for the clinician working in the field of implantology is huge and constantly increasing. The task of remaining abreast of the latest evidence and applying it effectively in clinical practice is further hindered by the fact that many scientific papers make contradictory claims and contain methodological flaws and biases that generate confusion and lack of reliability. Against this background, Evidence-Based Implant Dentistry will serve the reader as a dependable and scientifically supported guide to current implant treatment and key issues in the field.
Book Synopsis Implantable Sensors and Systems by : Guang-Zhong Yang
Download or read book Implantable Sensors and Systems written by Guang-Zhong Yang and published by Springer. This book was released on 2018-03-27 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implantable sensing, whether used for transient or long-term monitoring of in vivo physiological, bio-electrical, bio-chemical and metabolic changes, is a rapidly advancing field of research and development. Underpinned by increasingly small, smart and energy efficient designs, they become an integral part of surgical prostheses or implants for both acute and chronic conditions, supporting optimised, context aware sensing, feedback, or stimulation with due consideration of system level impact. From sensor design, fabrication, on-node processing with application specific integrated circuits, to power optimisation, wireless data paths and security, this book provides a detailed explanation of both the theories and practical considerations of developing novel implantable sensors. Other topics covered by the book include sensor embodiment and flexible electronics, implantable optical sensors and power harvesting. Implantable Sensors and Systems – from Theory to Practice is an important reference for those working in the field of medical devices. The structure of the book is carefully prepared so that it can also be used as an introductory reference for those about to enter into this exciting research and developing field.
