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Implant Zircone
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Book Synopsis Degradation of Implant Materials by : Noam Eliaz
Download or read book Degradation of Implant Materials written by Noam Eliaz and published by Springer Science & Business Media. This book was released on 2012-08-21 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the current understanding of the mechanical, chemical and biological processes that are responsible for the degradation of a variety of implant materials. All 18 chapters will be written by internationally renowned experts to address both fundamental and practical aspects of research into the field. Different failure mechanisms such as corrosion, fatigue, and wear will be reviewed, together with experimental techniques for monitoring them, either in vitro or in vivo. Procedures for implant retrieval and analysis will be presented. A variety of biomaterials (stainless steels, titanium and its alloys, nitinol, magnesium alloys, polyethylene, biodegradable polymers, silicone gel, hydrogels, calcium phosphates) and medical devices (orthopedic and dental implants, stents, heart valves, breast implants) will be analyzed in detail. The book will serve as a broad reference source for graduate students and researchers studying biomedicine, corrosion, surface science, and electrochemistry.
Book Synopsis A Systematic Review about Two-piece Zirconia Implants- Results of Preclinical Studies by : Nishihara Hironobu
Download or read book A Systematic Review about Two-piece Zirconia Implants- Results of Preclinical Studies written by Nishihara Hironobu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Background (500)Despite biocompatibility and excellent clinical outcome of titanium implants, a growing interest for an alternative implant material is noticeable. This is mostly due to patient-specific requests for metal-free treatment and concerns about adverse reactions titanium particle corrosion. Therefore, manufacturers are increasingly introducing zirconia implants with different features and designs. While most systems offer one-piece implant design, little is known about the applicability and features of two-piece implants.Aim of the study (300)This review aimed to summarize the preclinical knowledge about two-piece zirconia implant systems. Focus was given on design features, mechanical resistance of the implants and of the implant-restoration complex as well as peri-implant tissue response.Material and Methods (1000)An electronic search of the literature until March 2017 was performed to identify all articles related to preclinical research on two-piece zirconia implant systems. The search was conducted using MEDLINE (National Library of Medicine), Pubmed without restrictions concerning the date of publication. The search terminology included: zirconia implant, two-piece, mechanical properties, fracture resistance, strength, osseointegration, bone-to-implant contact, soft tissue, histology, histomorphometry (connecting different keywords with AND, OR). Hand-searching of the bibliographies of all full-text articles and related reviews, selected from the electronic search, was also performed. The literature search was limited to only English language articles. References appraised in related systematic reviews were also considered.Results (1000)Of the initially-identified 1026 titles, 58 papers were selected for full-text evaluation. After exclusion 53 articles, a total of 6 article were finally selected and analysed. The mechanical resistance was evaluated in 4 studies, where a clinical situation of implants placed in the anterior region was simulated. Interestingly, most studies used titanium abutment screws for evaluation. Irrespective of connection type (screw- or cement-retained), implant fractures were mostly reported in the implant-abutment connection, with the weakest component to be abutment screw, abutment and implant, respectively. In general, two-piece zirconia implant systems showed higher failure rates and lower resistance than one-piece zirconia implants as well as titanium implants.Peri-implant tissues were evaluated in 2 studies. Regardless of implant type (one- or two-piece), a significant marginal bone loss was recorded 6months after placement (0.19-1.11mm). The height of buccal peri-implant mucosa and bone-to-implant contact ranged, respectively, between 2.64-3.03mm and 78.6-87.9% with no statistically significant differences at follow-up evaluations.Conclusion and Clinical implications (500)Irrespective of connection type and the design, two-piece zirconia implants show sufficient strength to withstand normal forces applied in the anterior region. Hard and soft tissue response around two-piece zirconia implants seem to be similar to one-piece implants as well as titanium implants. Although they have the potential for clinical application, the limited knowledge about two-piece zirconia implants does not support their clinical application yet.
Book Synopsis Bioceramic Coatings for Medical Implants by : Robert B. Heimann
Download or read book Bioceramic Coatings for Medical Implants written by Robert B. Heimann and published by John Wiley & Sons. This book was released on 2015-02-09 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the progress in recent years, this book provides in-depth information on the preparation, chemistry, and engineering of bioceramic coatings for medical implants. It is authored by two renowned experts with over 30 years of experience in industry and academia, who know the potentials and pitfalls of the techniques concerned. Following an introduction to the principles of biocompatibility, they present the structures and properties of various bioceramics from alumina to zirconia. The main part of the work focuses on coating technologies, such as chemical vapor deposition, sol-gel deposition and thermal spraying. There then follows a discussion of the major interactions of bioceramics with bone or tissue cells, complemented by an overview of the in-vitro testing methods of the biomineralization properties of bioceramics. The text is rounded off by chapters on the functionalization of bioceramic coatings and a look at future trends. As a result, the authors bring together all aspects of the latest techniques for designing, depositing, testing, and implementing improved and novel bioceramic coating compositions, providing a full yet concise overview for beginners and professionals.
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 Clinical Longevity of Zirconia Implants with the Focus on Biomechanical and Biological Outcome by : Ralf-Joachim Kohal
Download or read book Clinical Longevity of Zirconia Implants with the Focus on Biomechanical and Biological Outcome written by Ralf-Joachim Kohal and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Purpose of Review The goal of the present review is to update the reader on the scientific background of zirconia ceramic implants. Clinical investigations using zirconia ceramic implants over the last couple of years have brought up some new developments and questions. Can we be confident in placing zirconia ceramic implants given the recently published data? Is there a difference in the application of one- and two-piece implants? Recent Findings Systematic reviews on preclinical investigations of zirconia implants revealed that one-piece zirconia implants (> 4 mm) are sufficiently stable for clinical use. The same is true for some clinically available two-piece implant systems. Osseointegration and soft tissue integration are, according to the reviews, similar between titanium and zirconia implants with similar surface topographies. Regarding the clinical outcome, a meta-review exists evaluating systematic reviews. The findings of the systematic reviews and the meta-review are that there are good short-term clinical results for one-piece zirconia implants. However, the data for two-piece implants is not robust. Summary In certain applications (single tooth restorations and small bridges), the results of zirconia implants are comparable with titanium implants in short-term studies. Some mid-term investigations support the short-term results. However, according to the current scientific data available, zirconia implants cannot yet be considered an alternative to titanium implants because there are many areas where there is a lack of clinical studies on zirconia implants. Currently, they are an addendum to the titanium implant armamentarium for situations where they are useful (patient request, known hypersensitivity to titanium, or questions of esthetics when titanium might appear inappropriate for a certain situation/condition), but long-term studies are needed. Without a doubt, there is a need for two-piece zirconia implants, but limited research exists to support their clinical use at the moment
Book Synopsis Implants in the Aesthetic Zone by : Todd R. Schoenbaum
Download or read book Implants in the Aesthetic Zone written by Todd R. Schoenbaum and published by Springer. This book was released on 2018-11-19 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concisely elucidates the science underlying implant treatment in the aesthetic zone in partially edentulous patients and clearly describes the techniques and protocols used by world-leading experts in the field. The book is divided into four parts that address treatment planning; site preparation (hard and soft tissue augmentation); immediate implant placement and provisional restoration; and the design, fabrication, and delivery of the definitive implant prosthesis. Complex cases of this nature present a significant challenge to even the most well informed and experienced of doctors. Implants in the Aesthetic Zone has been specifically crafted to meet all the needs of the clinician involved in their management, providing a reliable road map for interdisciplinary implant treatment in clinical practice. The authors have been carefully selected from a wide range of fields for their expertise in particular areas of implant science or treatment.
Book Synopsis A Prospective Clinical Cohort Investigation on Zirconia Implants: 5-year Results by : Ralf-Joachim Kohal
Download or read book A Prospective Clinical Cohort Investigation on Zirconia Implants: 5-year Results written by Ralf-Joachim Kohal and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Mid-term data on zirconia oral implants is very rare. Therefore, the aim of this prospective clinical investigation was to evaluate the survival rate and the marginal bone loss of a one-piece zirconia implant after five years. Patient-reported outcomes were also recorded. Zirconia implants to support single crowns (SC) or a 3-unit fixed dental prosthesis (FDP) were placed and subsequently restored. After the insertion of the implants, at prosthetic delivery, and after five years, standardized radiographs were taken to evaluate marginal bone loss (MBL). For bone tissue evaluation, linear mixed models with random intercepts were fitted. Twenty-seven patients received one implant for an SC and 13 patients received two implants for a 3-unit FDP. Three patients each lost one implant for an SC before prosthetic delivery. Thirty-five patients were seen after five years, and no further implant was lost. The cumulative five-year implant survival rate was 94.3%. The MBL from implant installation up to five years was 0.81 mm. The MBL from implant installation to prosthetic delivery was statistically significant (p
Book Synopsis Implants Made Easy by : August De Oliveira
Download or read book Implants Made Easy written by August De Oliveira and published by Implants Made Easy. This book was released on 2010-02-02 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implant dentistry has come a long way in terms of simplicity and safety. "Implants Made Easy" covers the entire implant process from treatment planning to cementation. This book was written with one goal in mind: to help General Dentists get involved in implant dentistry. By using the latest advances in 3D imaging and by using free implant software, many of the factors that have kept dentists on the sidelines have been eliminated. Many of the chapters show step-by-step surgical and restorative techniques that greatly simplify the implant process. A chapter on dental photography will show you ways to showcase your work, as well as how to upload to dental websites. Placing implants has never been easier!
Book Synopsis Zircon, Zirconium, Zirconia - Similar Names, Different Materials by : Bożena Arnold
Download or read book Zircon, Zirconium, Zirconia - Similar Names, Different Materials written by Bożena Arnold and published by Springer Nature. This book was released on 2022 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, you will find a lot of exciting and often astonishing information about these extraordinary and diverse materials. The presentation is essentially chronological and follows the history of the discovery of these materials. Their properties and areas of application are described along the way. The book represents a mixture of technical and non-fiction book: understandable for experts and laymen. Three different materials that are often confused because of their similar sounding names. Zircon is an ancient mineral and has great geological significance. It is a genuine gemstone and similar to diamond. Zirconium is the 40th chemical element and as a metal it is characterized by extraordinary properties. For example, it is permeable to thermal neutrons. In addition, there is a group of special zirconium alloys, e.g. zirkalloy. Zirconia is a special modification of zirconium oxide, is only produced artificially and, like zircon, is similar to diamond. Zirconium oxide itself is one of today's most important high-performance ceramics, with a wide range of applications in dentistry or in a lambda probe, among others. This book is a translation of the original German 1st edition Zirkon, Zirkonium, Zirkonia - ähnliche Namen, verschiedene Materialien by Bȯzena Arnold, published by Springer-Verlag GmbH Germany, part of Springer Nature in 2019. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors. The Author Dr. Bȯzena Arnold (formerly Boczek) is professor emerita of materials engineering at the HAW Hamburg University of Applied Sciences and has many years of experience in imparting materials engineering knowledge.
Book Synopsis Edentulous Rehabilitation with Zirconia Dental Implants- 10 Years Follow-up by : Andrea Enrico Borgonovo
Download or read book Edentulous Rehabilitation with Zirconia Dental Implants- 10 Years Follow-up written by Andrea Enrico Borgonovo and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of zirconium oxide implants associated with all-ceramic prosthetic rehabilitations can allow excellent esthetic results to be achieved, ensuring stable osseointegration.The devices used for the rehabilitation of single edentulism are single-component implants (White-SKY, Bredent, Senden Germany) made of sintered and stabilized zirconium oxide with yttrium.The aim was to evaluate survival rate and radiographic marginal bone loss (MBL) of zirconia implants placed in the esthetic and posterior areas of the jaws and of the maxillary bone in association with multiple or single implant restorations with a follow-up period of 10 years.At the Department of Implantology, Dental Clinic, IRCCS Fondazione Cu00e0 Granda Ospedale Maggiore Policlinico, University of Milan, 10 patients were treated from 2007 to 2009. 25 one-piece zirconium implants were utilized for single or partially edentulous ridges rehabilitation.The follow-up protocol included the radiographic control examination. The radiographs were taken using the customized silicon bite record. Measurements were made using the Image-J analysis software in order to calculate MBL. Bone level changes were calculated at the distal and mesial surfaces of all implants by applying the distortion coefficient.At the end, survival rate was formulated.During the follow-up, no implant failure was reported, with no pain or paresthesia, and, at the radiographic evaluation, peri-implant radiolucency was not detected. Thus, the cumulative survival rate was 100%.The total average resorption at 10 years is 0.81 mm.A statistically significant difference emerges between the resorption of single implants and those with multiple anchors, with a lower resorption of the multiple anchorage implants (p
Book Synopsis The Influence of Milled Vs. Laser-grooved Zirconia Implant Surfaces on Human Osteoblast Behavior by :
Download or read book The Influence of Milled Vs. Laser-grooved Zirconia Implant Surfaces on Human Osteoblast Behavior written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: Zirconia is a potential alternative to titanium for dental implants, however, there is a need for the improvement of surface treatment protocols to enhance its bioactivity. Several strategies have been described to achieve this aim, including the manufacture of surface modifications that increase roughness using laser, micro-machining or surface treatments as sandblasting and acid etching (SB-AE). The benefits of laser graving versus milling are not yet known.Objective: In vitro comparison of osteoblast response to Zirconia with SB-AE surfaces and additional groove-textures produced by micro-machining or laser, regarding cell attachment, cell proliferation and differentiation.Materials and Methods: Milled (M-YTZP) and laser (L-YTZP) groove textured zirconia discs with 10, 100, and 100 u00b5m features of depth, width and spacing, respectively, were produced using press and sintering. Untextured (S-YTZP) discs were used as controls. SB-AE protocol was applied to all samples to achieve a mean roughness ranging between 2.49 u00b1 0.3u00b5m and 2.03 u00b1 0.48u00b5m (p>0.05). Human osteoblasts were cultured on discs for 14 days. Morphology and cellular adhesion were observed using scanning electron microscopy (SEM) after 1 day. Cell viability and proliferation were evaluated at 1,3,7 and 14 days using a resazurin-based method. Alkaline phosphatase (ALP) activity was evaluated at 7 and 14 days and Collagen type I, Osteopontin and IL-1u03b2 were evaluated at 3 and 7 days using ELISA. All results were presented as mean u00b1 standard deviation (SD). Group comparisons were tested using Anova (Tukeyu2019s post-hoc) using appropriate statistical software and significance was set at p0.05.Results: Cell viability and proliferation increased over time in all study groups. M-YTZP and L-YTZP viability was significantly higher than in S-YTZP group at 7 and 14 days (p
Book Synopsis Comprehensive Biomaterials II by : Kevin Healy
Download or read book Comprehensive Biomaterials II written by Kevin Healy and published by Elsevier. This book was released on 2017-05-18 with total page 4865 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Biomaterials II, Second Edition, Seven Volume Set brings together the myriad facets of biomaterials into one expertly-written series of edited volumes. Articles address the current status of nearly all biomaterials in the field, their strengths and weaknesses, their future prospects, appropriate analytical methods and testing, device applications and performance, emerging candidate materials as competitors and disruptive technologies, research and development, regulatory management, commercial aspects, and applications, including medical applications. Detailed coverage is given to both new and emerging areas and the latest research in more traditional areas of the field. Particular attention is given to those areas in which major recent developments have taken place. This new edition, with 75% new or updated articles, will provide biomedical scientists in industry, government, academia, and research organizations with an accurate perspective on the field in a manner that is both accessible and thorough. Reviews the current status of nearly all biomaterials in the field by analyzing their strengths and weaknesses, performance, and future prospects Covers all significant emerging technologies in areas such as 3D printing of tissues, organs and scaffolds, cell encapsulation; multimodal delivery, cancer/vaccine - biomaterial applications, neural interface understanding, materials used for in situ imaging, and infection prevention and treatment Effectively describes the many modern aspects of biomaterials from basic science, to clinical applications
Book Synopsis Zirconia Bars Supporting Mandibular Implant-overdentures. Short-term Outcome of a Prospective Study by : Anina Zu00fcrcher
Download or read book Zirconia Bars Supporting Mandibular Implant-overdentures. Short-term Outcome of a Prospective Study written by Anina Zu00fcrcher and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Implant-overdentures (IODs) supported by titanium bars improve stability and comfort in edentulous patients being unsatisfied with their complete dentures. Todayu2019s computer-assisted design/computer-assisted manufacture (CAD/CAM) technology allows for fabrication of bars made from titanium but also from zirconium dioxide (ZrO). However, ZrO bars have not been in clinical use on a standard basis. Thus, scientific data with focus on ZrO bar reliability and peri-implant bone resorption are missing.Aim/Hypothesis: To report on the clinical short-term outcomes of CAD/CAM ZrO bars and respective mandibular IODs, and on the radiographical crestal bone level changes after 12-months. The null-hypothesis was that the bar fracture rate would be 5% and no significant crestal bone resorption would occur.Materials and Methods: Fifteen edentulous patients (53% men) with a mean age of 62 years were treated with a total of 30 implants, i.e. two interforaminal standard diameter implants (NobelReplace Select RP) per patient. After a healing time of six weeks, all patients received a mandibular IOD supported by a CAD/CAM ZrO bar milled from one homogenous block. All bars had a rigid design (Dolder) with bilateral 7mm extensions and were retained with 35Ncm directly on the implant, using a specific screw, and without titanium base at the interface. Female parts in the IOD were prefabricated gold attachments. The maxilla was rehabilitated with a complete denture and a lingualised occlusion concept was applied. Panoramic radiographs were taken at delivery and at the one year appointment. Prosthetic complications such as bar fractures and the need for maintenance service of the anchorage system, as well as biological outcomes including implant survival and crestal peri-implant bone level changes were recorded.Resultats: All the 30 implants osseointegrated without complications and were successfully in use at the 12-months recalls. One patient showed generalised hyperplasia of the mucosa around the bar. Radiographic measurements of the crestal bone resorption at mesial and distal implant sites revealed bone level changes of -2.9mm to +1.4mm (mean +0.2mm) after 12 months. While 10% percent of the sites showed bone levels with an increase of 1mm and 62% between 0 and 1mm, 27% had a loss of maximally 1mm and one site was measured -2.9mm without clinical signs of inflammation. All the 15 ZrO bars and corresponding IODs were successfully in use without fracture or any technical complications. No special maintaining service was recorded other than removal of superficial bar discoloration at lingual sites.Conclusions and Clinical Implications: None of the 15 ZrO bars and IODs showed a fracture or a prosthetic complication after 12 months. Survival and success rate of the 30 implants were 100% with stable crestal bone levels. These short-term results of this prospective study showed that the use of ZrO bar with its unique biocompatibility and, due to its white colour, easiness to perform and control good cleansability for elder patients is possible with a high predictability and without technical or biological complications.
Book Synopsis Effect of Ha-coating and HF Etching on Experimental Zirconia Implant Evaluation Using in Vivo Rabbit Model by : Sung-En Huang
Download or read book Effect of Ha-coating and HF Etching on Experimental Zirconia Implant Evaluation Using in Vivo Rabbit Model written by Sung-En Huang and published by . This book was released on 2010 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to evaluate the in vivo performance of the hydroxyapatite (HA) coating and hydrofluoric acid (HF) etching zirconia (ZrO) implants and to compare the result with titanium (Ti) implants treated in a similar manner. A total of four different implant types were tested in this study. Threaded zirconia implants with HA coating (Test 1) and zirconia implants with HF-treated surfaces (Test 2) were used to compare to the same size of titanium implants treated in identical fashion (control 1 and control 2). All implants measured about 3.5 mm at the thread diameter and 7.0 mm in total length. Each rabbit received two zirconia and two titanium implants treated in the same manner (either HA-coated or HF-etched). The samples were implanted into the rabbit tibias and retrieved at 6 weeks. Upon retrieval, 24 specimens (6 samples for each group) were fixed and dehydrated. The samples were then embedded undecalcified in PMMA for histomorphometry to quantify the bone-to-implant contact (BIC). Another 24 samples were kept in 0.9% saline and were evaluated using removal torque (RT) analysis to assess the strength of the implant-to-bone interface. The histomorphometric examination demonstrated direct bone-to-implant contact for all four groups. HA particle separation from the implants surface was seen in a majority of the HA-coated samples. No signs of inflammation or foreign body reaction were found during examination. Due to the HA particle smear contamination in the ZrO-HA group, no data was collected in this group. The mean BIC at the first three threads of the Ti-HA, Ti-HF and ZrO-HF were 57.78"18.22%, 46.41"14.55% and 47.41"14.05%, respectively. No statistically significant difference was found pair-wise among these three groups. When comparing the BIC data with the machined-surface implants, a statistically significant difference was found between the Ti-HA versus Ti implant group and the Ti-HF versus Ti implant group. The mean bone area (BA) at the first three threads for Ti-HA, Ti-HF and ZrO-HF showed statistically significant difference (p
Book Synopsis Retrieval of Cemented Monolithic Zirconia Single Unit Implant Restoration Using Er:YSGG Laser by : Karnik Shah
Download or read book Retrieval of Cemented Monolithic Zirconia Single Unit Implant Restoration Using Er:YSGG Laser written by Karnik Shah and published by . This book was released on 2016 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: The purpose of this study was to measure the force required to remove individual CAD/CAM monolithic 1.5mm thick zirconia copings cemented with a definitive or a provisional cement on zirconia and titanium stock implant abutments after single application of erbium-doped yttrium scandium gallium garnet (Er:YSGG) laser; comparing them to non-lased controls. Further, the temperature changes were assessed during laser application on cemented crowns, through thermocouples attached at the collars of 2 implants embedded in a stereolithographic model of the mandible. Materials and Methods: Resin- modified Glass ionomer (Rx; RelyX Luting Plus) and zinc oxide eugenol (Tb; TempBond) were used to cement a total of thirty-six monolithic zirconia (Zr; Zenostar® Zr Translucent) copings on new stock zirconia (Zr; ZirDesignTM) and titanium (Ti; TiDesignTM) abutments in this study. These abutment-coping specimens were randomly divided into 12 groups of 3 each, based on laser application (or control; C), abutment type, cement used, and storage conditions (D; 24 hour dry vs. W; 7 day water storage). Er:YSGG laser was applied at 6W, 30% water-60% air and 20 Hz (300mJ/pulse energy), post cementationfollowing a defined pattern. Force required to remove all the cemented copings from their abutments was measured on a universal testing machine (Instron Corp model 4204). Descriptive statistics, multi- factor analysis of variance (ANOVA) and Post Hoc Tukey’s HSD tests (a = .05) were performed. The temperature readings were recorded during laser application on a separate set of cemented crowns, with a four channel data logger thermometer (OMEGA Engineering Inc model HH309A).
Book Synopsis Fit of Zirconia Ceramic Prostheses on Implants by : Jaafar Abduo
Download or read book Fit of Zirconia Ceramic Prostheses on Implants written by Jaafar Abduo and published by . This book was released on 2010 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis One-piece Zirconia Oral Implants for Single Tooth Replacement: Five-year Results from a Prospective Cohort Study by : Ralf-Joachim Kohal
Download or read book One-piece Zirconia Oral Implants for Single Tooth Replacement: Five-year Results from a Prospective Cohort Study written by Ralf-Joachim Kohal and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The intention of this 5-year prospective cohort investigation was to clinically and radiographically investigate the outcomes of a one-piece zirconia implant system for single tooth replacement. Sixty-five patients received a total of 66 single-tooth implants. All implants immediately received temporary restorations and were finally restored with all-ceramic crowns. Follow-ups were performed at the prosthetic delivery, after 1, 3, and 5 years. Peri-implant and dental soft-tissue parameters were evaluated and patient-reported outcomes recorded. To monitor peri-implant bone remodelling, standardised radiographs were taken at the implant insertion and at the 1-, 3-, and 5-year follow-ups. In the course of 5 years, 14 implants were lost, resulting in a cumulative implant survival rate of 78.2%. The mean marginal bone loss from the implant insertion to the 5-year follow-up amounted to 1.12 mm. Probing depth, clinical attachment level, bleeding, and plaque index increased over time. In 91.5% of the implants, the papilla index showed levels of 1 or 2, respectively. At the end of the study, the patient satisfaction was higher compared to the pre-treatment measurements. Due to the low survival rate after five years and the noticeably high frequency of advanced bone loss observed in this study, the implant has not met the launch criteria, as it would have not been recommended for routine clinical use
