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Implant supported prosthesis

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https://www.readbyqxmd.com/read/28430883/ten-year-results-of-aortic-valve-replacement-with-first-generation-mitroflow-bioprosthesis-is-early-degeneration-a-structural-or-a-technical-issue
#1
Liesbeth Lootens, Jonas Verbeke, Thomas Martens, Tine Philipsen, Frank Caes, Yves Van Belleghem, Guido Van Nooten, Katrien François, Dirk De Bacquer, Thierry Bove
OBJECTIVES: Concerns have been raised about the durability of the first-generation Mitroflow aortic bioprosthesis (model 12 A-LX) due to the lack of anticalcification treatment. This study reflects a 10-year experience with this prosthesis for aortic valve replacement. METHODS: From June 2003 to May 2012, the Mitroflow prosthesis was used for aortic valve replacement in 510 patients, of whom only 467 with complete clinical follow-up were included for analysis. Study end-points were survival and incidence of structural valve degeneration (SVD)...
April 19, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28415400/antibacterial-and-cytocompatible-nanotextured-ti-surface-incorporating-silver-via-single-step-hydrothermal-processing
#2
Anu Mohandas, Amit G Krishnan, Raja Biswas, Deepthy Menon, Manitha B Nair
Nanosurface modification of Titanium (Ti) implants and prosthesis is proved to enhance osseointegration at the tissue-implant interface. However, many of these products lack adequate antibacterial capability, which leads to implant loosening. As a curative strategy, in this study, nanotextured Ti substrates embedded with silver nanoparticles were developed through a single step hydrothermal processing in an alkaline medium containing silver nitrate at different concentrations (15, 30 and 75μM). Scanning electron micrographs revealed a non-periodically oriented nanoleafy structure on Ti (TNL) decorated with Ag nanoparticles (nanoAg), which was verified by XPS, XRD and EDS analysis...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28403247/early-complications-of-immediate-loading-in-edentulous-full-arch-restorations-a-retrospective-analysis-of-88-cases
#3
Iñaki Cercadillo-Ibarguren, Alba Sánchez-Torres, Rui Figueiredo, Eduard Valmaseda-Castellón
PURPOSE: To describe the clinical outcomes and complications related to provisional prostheses after full-arch implant-supported rehabilitation by means of an immediate loading protocol. MATERIALS AND METHODS: This retrospective cohort study included patients who were consecutively treated with full-arch implant-supported restorations with a minimum of four implants (Replace Select Tapered TiUnite, Nobel Biocare AB) per arch and conical abutments (multi-unit, Nobel Biocare AB) by means of an immediate loading protocol...
April 12, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28402355/digitally-milled-metal-framework-for-fixed-complete-denture-with-metal-occlusal-surfaces-a-design-concept
#4
Bader AlBader, Abdulaziz AlHelal, Periklis Proussaefs, Antonela Garbacea, Mathew T Kattadiyil, Jaime Lozada
Implant-supported fixed complete dentures, often referred to as hybrid prostheses, have been associated with high implant survival rates but also with a high incidence of mechanical prosthetic complications. The most frequent of these complications have been fracture and wear of the veneering material. The proposed design concept incorporates the occlusal surfaces of the posterior teeth as part of a digital milled metal framework by designing the posterior first molars in full contour as part of the framework...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28391648/prevalence-of-proximal-contact-loss-between-implant-supported-fixed-prostheses-and-adjacent-natural-teeth-and-its-associated-factors-a-7-year-prospective-study
#5
Nan-Sim Pang, Chang-Sup Suh, Kee-Deog Kim, Wonse Park, Bock-Young Jung
OBJECTIVES: The aim was to analyze the prevalence rate of proximal contact loss (PCL) between implant-fixed prostheses (IFPs) and adjacent teeth and investigate the associated factors. MATERIAL AND METHODS: One hundred fifty participants were recruited for this prospective study from January 2009 to December 2014. Two hundred thirty-four IFPs supported by 384 implants for the posterior region were followed up until June 2016. The contact tightness had been recorded using aluminum strips of different thicknesses with a regular interval after delivery...
April 8, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28385445/a-combined-digital-and-stereophotogrammetric-technique-for-rehabilitation-with-immediate-loading-of-complete-arch-implant-supported-prostheses-a-randomized-controlled-pilot-clinical-trial
#6
María Peñarrocha-Diago, José Carlos Balaguer-Martí, David Peñarrocha-Oltra, José Francisco Balaguer-Martínez, Miguel Peñarrocha-Diago, Rubén Agustín-Panadero
STATEMENT OF PROBLEM: Traditional impressions for complete-arch restorations are complex and time-consuming, and they can be uncomfortable for the patient. New digital techniques such as stereophotogrammetry may mitigate this. PURPOSE: The purpose of this randomized controlled pilot clinical trial was to compare the patient and dentist satisfaction and work times of traditional impressions (control group) and digital impressions with stereophotogrammetry in complete-arch, implant-supported prostheses...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385440/quality-of-life-assessment-of-implant-retained-overdentures-and-fixed-metal-acrylic-resin-prostheses-in-patients-with-marginal-mandibulectomy
#7
Banu Karayazgan-Saracoglu, Arzu Atay, Cumhur Korkmaz, Yumushan Gunay
STATEMENT OF PROBLEM: Several factors affect the prosthetic outcome of patients with mandibular defects. However, it is questionable whether fixed or removable implant-supported prostheses meet the expectations and satisfaction of the patients. The perspectives of these patients are important in managing the prosthetic treatment strategies. PURPOSE: The purpose of this prospective clinical study was to evaluate the satisfaction and oral health-related quality of life of patients with marginal mandibulectomies with implant-retained overdentures and fixed metal-acrylic resin prostheses...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28383305/a-digital-image-correlation-analysis-of-strain-generated-by-3-unit-implant-supported-fixed-dental-prosthesis-an-in-vitro-study
#8
Raniel F Peixoto, Ana P Macedo, Janisse Martinelli, Adriana C Lapria Faria, Rodrigo Tiossi, Ricardo F Ribeiro, Maria da G C de Mattos
OBJECTIVE: To evaluate the influence of different veneering materials (porcelain and resin) and implants (short and conventional) in the strain distribution of implant-supported splinted fixed partial dentures (FPDs) using digital image correlation (DIC). MATERIAL AND METHODS: Four polyurethane models were fabricated with resin replicas (first premolar) and short and/or conventional implants replacing the second premolar and first and second molars, according to the following configurations: G1, 2 conventional (second premolar and first molar) and 1 short (second molar) implant; G2, 1 conventional (second premolar) and 2 short (first and second molar) implants; G3, 3 short implants; G4, 3 conventional implants...
April 5, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28381734/implant-supported-oral-rehabilitation-in-child-with-ectodermal-dysplasia-4-year-follow-up
#9
Thaisa Cezária Triches, Marcos Ximenes, João Gustavo Oliveira de Souza, Armando Rodrigues Lopes Pereira Neto, Antônio Carlos Cardoso, Michele Bolan
Ectodermal dysplasia (ED) is an anomaly determined by genetic factors that alter ectodermal structures such as skin, hair, nails, glands, and teeth. Children affected by this condition require extensive, comprehensive, and multidisciplinary treatment. An 8-year-old female patient visited the Dentistry Clinic of the Federal University of Santa Catarina with the chief complaint of multiple missing teeth. The mother reported that the patient had ED. Clinical and radiographic examination revealed the congenital absence of several primary and permanent teeth and tooth germs...
2017: Bulletin of Tokyo Dental College
https://www.readbyqxmd.com/read/28370406/6-mm-long-implants-loaded-with-fiber-reinforced-composite-resin-bonded-fixed-prostheses-frcrbfdps-a-5-year-prospective-study
#10
Fabio Rossi, Niklaus P Lang, Emanuele Ricci, Lorenzo Ferraioli, Claudio Marchetti, Daniele Botticelli
AIM: To evaluate the clinical and radiographic outcomes and the survival rates of fiber-reinforced composite resin-bonded fixed prostheses (FRCRBFDPs) placed in the posterior area supported by two short (6 mm) implants. MATERIALS AND METHODS: Twenty consecutive patients received 40 SLActive 6-mm-long implants with a diameter of 4.1 mm (n = 29) or 4.8 mm (n = 11). Insertion torques and RFA (Resonance Frequency Analysis) were measured at implant installation...
March 28, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28370239/shortened-dental-arch-and-prosthetic-effect-on-oral-health-related-quality-of-life-a-systematic-review-and-meta-analysis
#11
REVIEW
Kenji Fueki, Kazuyoshi Baba
This systematic review aimed to compare oral health-related quality of life (OHRQoL) between two tooth replacement strategies-the shortened dental arch (SDA) concept and conventional treatment with removable partial dental prosthesis (RPDP) or implant-supported fixed partial dental prosthesis (IFPDP) -for distal extension of edentulous space in the posterior area. We retrieved eligible randomized controlled trials (RCTs) and non-RCTs published between 1980 and November 2016 retrieved from MEDLINE and the Cochrane Central Register of Controlled Trials...
March 31, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28369578/sutureless-aortic-bioprosthesis
#12
José Martínez-Comendador, Mario Castaño, Javier Gualis, Elio Martín, Pasquale Maiorano, Javier Otero
Aortic valve replacement (AVR) is the treatment of choice for aortic valve disease, with excellent results reported in the short- and long-term follow-up. Due to the increasing number of patient comorbidities and older age, various technical alternatives have been developed such as transcatheter aortic valve implantation and, more recently, sutureless valve bioprostheses. For patients with very high surgical risk, transcatheter implantation is becoming the top therapeutic option. However, the percutaneous technique still has major disadvantages including those related to implantation without excision of the diseased native valve without direct view of the annulus, which increases the probability of developing perivalvular leaks and a high percentage of atrioventricular block...
March 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28368878/eighteen-month-outcomes-of-titanium-frameworks-using-computer-aided-design-and-computer-aided-manufacturing-method
#13
Ilser Turkyilmaz, Neset Volkan Asar
PURPOSE: The aim of the report is to introduce a new software and a new scanner with a noncontact laser probe and to present outcomes of computer-aided design and computer-aided manufacturing titanium frameworks using this new software and scanner with a laser probe. MATERIALS AND METHODS: Seven patients received 40 implants placed using a 1-stage protocol. After all implants were planned using an implant planning software (NobelClinician), either 5 or 6 implants were placed in each edentulous arch...
March 31, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28351185/biomechanical-evaluation-of-spring-system-for-implant-supported-prosthesis-analysis-by-photoelasticity-and-extensometry
#14
Marcelo Coelho Goiato, Rodrigo Antonio de Medeiros, Emily Vivianne Freitas da Silva, Mariana Vilela Sônego, Daniela Micheline Dos Santos
New systems are released in the odontological market with the objective of bringing improvements and advancements in the clinical success of implants and implant-supported prostheses. The distribution of tension for the bone/implant system of these new systems is important. The purpose of this work was to evaluate, by photoelastic analysis and strain gauges, the distribution of tension for the bone/implant system, using the Slim system. A photoelastic cast with an external hexagon implant was manufactured and a metal prosthesis was screwed below it, with or without the tested system...
March 29, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28349769/finite-element-analysis-of-implant-supported-prosthesis-with-pontic-and-cantilever-in-the-posterior-maxilla
#15
Victor Eduardo de Souza Batista, Fellippo Ramos Verri, Daniel Augusto de Faria Almeida, Joel Ferreira Santiago Junior, Cleidiel Aparecido Araújo Lemos, Eduardo Piza Pellizzer
The aim of this study was to evaluate the influence of pontic and cantilever designs (mesial and distal) on 3-unit implant-retained prosthesis at maxillary posterior region verifying stress and strain distributions on bone tissue (cortical and trabecular bones) and stress distribution in abutments, implants and fixation screws, under axial and oblique loadings, by 3D finite element analysis. Each model was composed of a bone block presenting right first premolar to the first molar, with three or two external hexagon implants (4...
May 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28349495/a-novel-report-on-the-use-of-an-oncology-zygomatic-implant-retained-maxillary-obturator-in-a-paediatric-patient
#16
Amit Dattani, David Richardson, Chris J Butterworth
This report details the use of zygomatic oncology osseointegrated implants to support and retain a maxillary obturator in a 13-year-old male patient who underwent a right-sided hemi-maxillectomy (Brown Class 2b) (Brown and Shaw, Lancet Oncol 11:1001-8, 2010) for a myxoid spindle cell carcinoma. At the time of maxillary resection, two zygomatic oncology implants were inserted into the right zygomatic body and subsequently utilised to provide in-defect support and retention for a bar-retained maxillary acrylic obturator prosthesis, which restored the patient's aesthetics and function to a very high level...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28343045/cervical-disc-arthroplasty-do-conflicts-of-interest-influence-the-outcome-of-clinical-studies
#17
REVIEW
Ankur S Narain, Fady Y Hijji, Kelly H Yom, Krishna T Kudaravalli, Kern Singh
BACKGROUND CONTEXT: Cervical disc arthroplasty (CDA) is an emerging technique for the treatment of cervical degenerative disease. Multiple studies have investigated the outcomes of CDA, particularly in comparison with cervical arthrodesis techniques such as anterior cervical discectomy and fusion (ACDF). As many entities have financial interests in CDA implants, it is imperative to consider the influence of conflicts of interest on the results of studies investigating the efficacy of CDA...
March 22, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28337536/functional-and-patient-reported-outcomes-of-the-swanson-metacarpo-phalangeal-arthroplasty-in-the-rheumatoid-hand
#18
Firas K Elherik, Sean Dolan, John Antrum, Frank Unglaub, Colin R Howie, Steffen J Breusch
INTRODUCTION: Replacement of the metacarpo-phalangeal joints (MCPJ) with silastic Swanson's implants can help decrease pain, stiffness and allow for improved function in rheumatoid arthritis (RA). There is a lack of patient reported outcome measure (PROM) studies assessing the efficacy of this procedure in RA. The aim of this study was to report any change in function, pain, stiffness and satisfaction following the Swanson MCPJ replacement using patient reported outcomes in a rheumatoid population...
March 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28327695/do-repeated-changes-of-abutments-have-any-influence-on-the-stability-of-peri-implant-tissues-one-year-post-loading-results-from-a-multicentre-randomised-controlled-trial
#19
Marco Esposito, Eriberto Bressan, Maria Gabriella Grusovin, Ferdinando D'Avenia, Konrad Neumann, Luca Sbricoli, Giuseppe Luongo
PURPOSE: To evaluate the influence of at least three abutment changes in conventionally loaded implants against placement of a definitive abutment in immediately non-occlusal loaded implants on hard and soft tissue changes. MATERIALS AND METHODS: Eighty patients requiring one single crown or one fixed partial prosthesis supported by a maximum of three implants were randomised, after implants were placed with more than 35 Ncm, according to a parallel group design to receive definitive abutments which were loaded immediately (definitive abutment or immediate loading group) or transmucosal abutments...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28326754/supporting-imaging-modalities-for-improving-diagnosis-of-prosthesis-endocarditis-preliminary-results-of-a-single-center-experience-with-fluorine-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#20
Anna Kokalova, Angelo M Dell'AQUILA, Nemanja Avramovic, Sven Martens, Christian Wenning, Jürgen R Sindermann
AIM: The aim of current study was to evaluate the role of PET-CT in the diagnosis of prosthetic valve endocarditis (PVE). METHODS: This is a single-center study including 13 PET/CT examinations performed between February 2009 and March 2016 in 13 patients (76.9% men, mean age 68.1 years, IQR 11.1) because of suspect of PVE. Median interval time between first operation and PET/CT examination was 19.02 months (lQR 85.5). Final diagnosis was made according to pathological criteria (histological and microbiological) of the Duke classification...
March 21, 2017: Minerva Medica
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