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Implant supported prosthesis

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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
#1
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
#2
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
https://www.readbyqxmd.com/read/28321585/a-comparative-study-on-7-year-results-of-all-on-four%C3%A2-immediate-function-concept-for-completely-edentulous-mandibles-metal-ceramic-vs-bar-retained-superstructures
#3
Mustafa Ayna, Aydin Gülses, Yahya Acil
The study aims to document the clinical outcomes over a 7-year period of two techniques used for the rehabilitation of edentulous mandibles according to the "All-on-Four™" concept: (1) fixed complete-arch prostheses fabricated with metal-ceramic implant-supported fixed prosthesis with a titanium framework and all-ceramic crowns and (2) bar-retained implant-supported removable prosthesis with acrylic resin prosthetic teeth. The study was performed on 32 patients who received immediately loaded "All-on-Four™" fixed mandibular prostheses...
March 20, 2017: Odontology
https://www.readbyqxmd.com/read/28321026/left-ventricular-outflow-tract-migration-of-a-balloon-expandable-prosthesis-during-transcatheter-aortic-valve-implantation
#4
Daisuke Hachinohe, Ken Kobayashi, Azusa Furugen, Ryuji Koshima
Valve migration into the left ventricular outflow tract (LVOT) during transcatheter aortic valve implantation (TAVI) is a life-threatening complication. An 89-year-old female patient was admitted for TAVI due to severe symptomatic aortic stenosis. After deployment of a balloon-expandable prosthesis, the prosthesis had migrated into the LVOT. The prosthesis was reimpacted to the aortic annulus by a balloon-assisted recapture procedure. Immediately after recapturing the prosthesis with an oversized balloon, the patient's vital signs deteriorated due to acute aortic regurgitation (AR), and a prompt valve-in-valve (V-in-V) procedure allowed us to stabilize the patient's condition...
March 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28318375/fracture-strength-of-standard-and-small-diameter-prosthetic-abutments-for-full-arch-implant-supported-restorations
#5
Bruno Costa Martins de Sá, Augusto Ricardo Andrighetto, Sérgio Rocha Bernardes, Rodrigo Tiossi
The fracture strength of prosthetic abutments with different sizes and combinations to support a 5 implant milled framework with distal extension was tested. Prosthetic abutments with different dimensions (4.8 mm diameter mini-conical abutment and 3.5 mm diameter micro-conical abutment) were screwed to 5 threaded implants. The following groups were divided (n=3): G1 with 5 mini-conical abutments (standard size), G2 with 5 micro-conical abutments (small sized), G3 with a combination of 3 small sized abutments and 2 standard sized abutments, and G4 with a combination of 2 small sized abutments and 3 standard sized abutments...
March 20, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28317831/-conceptual-approach-to-classification-of-implant-supported-prosthesis-for-edentulous-patients
#6
V N Trezubov, R A Rozov, G S Azarin
The aim of this study was the creation of a conceptual model of the standard implant prosthetics for edentulous patients using the data of comprehensive examination and implantation prosthetics in 372 patients aged 38 to 80 years (201 women, 171 men) with 582 implant supported prosthesis of various types, supporting on implants «Nobel Replace Select/Groove» and «Nobel Speedy Groove» (3675 implants). Clinical classification of implant-supported prosthesis for edentulous patients included 5 classes: class 1 (1-2 implants) included 6...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28296981/mucosa-thickness-and-peri-implant-crestal-bone-stability-a-clinical-and-histologic-prospective-cohort-trial
#7
Luigi Canullo, Fabio Camacho-Alonso, Marco Tallarico, Silvio Mario Meloni, Erta Xhanari, David Penarrocha-Oltra
PURPOSE: To correlate soft tissue thickness and peri-implant bone remodeling of platform-switching implants. MATERIALS AND METHODS: This comparative prospective trial evaluated, for up to 3 years after implant loading, the influence of soft tissue thickness on changes in peri-implant marginal hard tissue levels. Any patient who was partially edentate in the mandible and required at least two adjacent implant-supported restorations was recruited at the University of Valencia in Spain...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28293441/free-gingival-graft-to-increase-keratinized-mucosa-after-placing-of-mandibular-fixed-implant-supported-prosthesis
#8
Danny Omar Mendoza Marin, Andressa Rosa Perin Leite, Lélis Gustavo Nícoli, Claudio Marcantonio, Marco Antonio Compagnoni, Elcio Marcantonio
Insufficiently keratinized tissue can be increased surgically by free gingival grafting. The presence or reconstruction of keratinized mucosa around the implant can facilitate restorative procedure and allow the maintenance of an oral hygiene routine without irritation or discomfort to the patient. The aim of this clinical case report is to describe an oral rehabilitation procedure of an edentulous patient with absence of keratinized mucosa in the interforaminal area, using a free gingival graft associated with a mandibular fixed implant-supported prosthesis...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28271438/short-term-follow-up-of-masticatory-adaptation-after-rehabilitation-with-an-immediately-loaded-implant-supported-prosthesis-a-pilot-assessment
#9
Mihoko Tanaka, Collaert Bruno, Reinhilde Jacobs, Tetsurou Torisu, Hiroshi Murata
BACKGROUND: When teeth are extracted, sensory function is decreased by a loss of periodontal ligament receptions. When replacing teeth by oral implants, one hopes to restore the sensory feedback pathway as such to allow for physiological implant integration and optimized oral function with implant-supported prostheses. What remains to be investigated is how to adapt to different oral rehabilitations. The purpose of this pilot study was to assess four aspects of masticatory adaptation after rehabilitation with an immediately loaded implant-supported prosthesis and to observe how each aspect will recover respectively...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28267831/associations-between-early-implant-failure-patient-age-and-patient-mortality-a-15-year-follow-up-study-on-2-566-patients-treated-with-implant-supported-prostheses-in-the-edentulous-jaw
#10
Torsten Jemt, Mats Nilsson, Malin Olsson, Victoria Franke Stenport
PURPOSE: The aim of this study was to report the distribution of patients with early implant failures after implant treatment in the edentulous jaw with regard to age at surgery and association with patient mortality over a 15-year period. MATERIALS AND METHODS: All consecutively treated patients treated in the edentulous jaw at a single specialist clinic from 1986 to 1997 were included and followed up for 1 year for implant failures and for 15 years with regard to patient mortality...
March 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28267816/the-effect-of-a-cad-cam-guided-template-on-formation-of-the-screw-access-channel-for-fixed-prostheses-supported-by-lingually-placed-implants
#11
Du-Hyeong Lee, Lin-Jie Li, Hang Nga Mai, Kyung-Rok Kim, Keun-Woo Lee
PURPOSE: The aim of this study was to evaluate the effect of a computer-aided design/computer-assisted manufacturing (CAD/CAM) guide on drilling the screw-access channel for lingually placed implants. MATERIALS AND METHODS: Screw-channel drilling guides were fabricated on lingually placed implant models using CAD/CAM technology. The screw channels were prepared with guided or freehand drilling by 20 dental graduates. The accuracy of each screw channel was assessed for drilling entry point, channel volume, and angulation (α = ...
March 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28255833/optimal-sequencing-of-postmastectomy-radiotherapy-and-two-stages-of-prosthetic-reconstruction-a-meta-analysis
#12
Kyeong-Tae Lee, Goo-Hyun Mun
BACKGROUND: Despite an expanding role of adjuvant radiotherapy and the popularity of two-stage prosthesis-based reconstruction in the treatment of breast cancer, there is no consensus on the proper timing of postmastectomy radiotherapy (PMRT) in relation to the two stages of the reconstruction procedure. The present meta-analysis investigated the optimum timing of PMRT by comparing the outcomes of the following two sequences: radiation on tissue expander followed by the exchange, and radiation on the permanent implant after the exchange...
March 2, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28222876/evaluation-of-the-effect-of-an-offset-implant-configuration-in-the-posterior-maxilla-with-external-hexagon-implant-platform-a-3-dimensional-finite-element-analysis
#13
Victor Eduardo de Souza Batista, Fellippo Ramos Verri, Daniel Augusto de Faria Almeida, Joel Ferreira Santiago Junior, Cleidiel Aparecido Araújo Lemos, Eduardo Piza Pellizzer
STATEMENT OF PROBLEM: Slight displacement of the central implant in 3-unit implant-supported prostheses has been reported to improve biomechanical behavior. However, studies that assessed the effects of an offset implant configuration in the posterior maxilla are scarce. PURPOSE: The purpose of this 3-dimensional (3D) finite element analysis was to assess the effects of splinting in 3-unit implant-supported prostheses with varying implant positions (straight-line or offset configuration) in terms of the stress/strain distribution on bone tissue and the stress distribution on abutment screws...
February 17, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28222867/prosthodontic-treatment-of-a-retrognathic-edentulous-maxilla-demonstrating-limited-interarch-distance-3-5-year-results-with-fixed-and-removable-implant-prostheses
#14
Won-Suk Oh, Furat George, Ju-Mi Park
The prosthodontic treatment of patients with a retrognathic edentulous maxilla should consider the restoration of the lower facial profile and access for oral hygiene. This clinical report describes prosthodontic treatments of a patient with edentulism who presented with repeated fractures of the denture teeth of a maxillary implant-supported complete fixed dental prosthesis (ICFDP) and a mandibular implant-supported overdenture. Considerable plaque accumulation was noted on the ICFDP, which was replaced with an open palatal design implant-supported overdenture...
February 17, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28217567/painful-knee-prosthesis-ct-scan-to-assess-patellar-angle-and-implant-malrotation
#15
REVIEW
Antonio Spinarelli, Vito Pesce, Caterina Campagna, Giuseppe Maccagnano, Biagio Moretti
BACKGROUND: According to literature, the incidence of pain in knee prostheses is on the increase. In the last decade Authors have focused attention on rotational alignment of the prosthetic components. The aim of this study is to evaluate the efficiency of a new angle, which we define as patellar angle, in order to achieve early diagnosis of malrotation. METHODS: We set up a retrospective observational study recruiting 100 subjects who had undergone total knee prosthesis...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28216844/effect-of-technique-and-impression-material-on-the-vertical-misfit-of-a-screw-retained-three-unit-implant-bridge-an-in-vitro-study
#16
Hamidreza Rajati Haghi, Masoud Shiehzadeh, Mohammadreza Nakhaei, Fatemeh Ahrary, Saeid Sabzevari
INTRODUCTION: A dental impression is a negative imprint of an oral structure that can be used to produce a positive cast of a patient's teeth as a permanent record. The accuracy of the impression affects the accuracy of the cast, and a precise impression is needed in order to create prosthesis with optimal fitting. Minimization of misfit is an important aim in prosthesis science and dental implants. The aim of this study was to evaluate the effects of the materials and techniques used to take an impression on the vertical misfit of implant-supported, screw-retained, three-unit bridges...
January 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28207597/implant-anchorage-in-the-nasopalatine-canal-for-the-rehabilitation-of-severely-atrophic-maxilla
#17
Pâmela Leticia Dos Santos, Gustavo Henrique Souza Silva, Raquel Damazia da Silva, Fernanda Rayssa Da Silva Pereira, Jéssica Lemos Gulinelli
PURPOSE: This study aimed to describe the clinical case of implant placement in the nasopalatine canal as an aid for atrophic maxilla rehabilitation. CASE REPORT: The surgical procedure was carried out in 2 stages, the first part consisted of a surgery to lift the maxillary sinus membrane associated with the xenogeneic bone placement and the second part consisted of the surgery for the implants placement, both under local anesthesia. A number of seven osseointegrated implants were placed in the maxilla, one was anchored in the nasopalatine canal region after having its neurovascular content emptied by means of the use of drill threads of the implant system...
April 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28188110/accuracy-and-mechanical-performance-of-passivated-and-conventional-fabricated-3-unit-fixed-dental-prosthesis-on-multi-unit-abutments
#18
Michael Stimmelmayr, Julian Groesser, Florian Beuer, Kurt Erdelt, Gerald Krennmair, Caroline Sachs, Daniel Edelhoff, Jan-Frederik Güth
PURPOSE: The aim of this study was to evaluate the fit and mechanical stability of conventional versus passive fitting 3-unit fixed dental prosthesis (FDP) screw-retained on implants. METHODS: Twenty acrylic models, each with two embedded implants, were fabricated and functioned as patient-models. Impressions were taken and 20 all-ceramic FDPs were pre-fabricated on the plaster casts. Respectively 10 FDPs were fixed on the plaster casts (group 1) and on the patient-models for passive fitting (group 2)...
February 7, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28169834/development-of-biomimetic-micro-patterned-device-incorporated-with-neurotrophic-gradient-and-supportive-schwann-cells-for-the-applications-in-neural-tissue-engineering
#19
Chia-Wei Yeh, Li-Wen Wang, Hsi-Chin Wu, Yi-Kong Hsieh, Jane Wang, Ming-Hong Chen, Tzu-Wei Wang
In these years, the artificial nerve guidance conduit (NGC) has been developed as an alternative way to repair peripheral nerve injury. Unlike autologous nerve graft, the artificial NGC without proper stimulating factors and guidance cues still cannot obtain satisfactory prognosis for clinical patients. In this study, a biodegradable polymer-based implantable device has been developed and characterized. By incorporating three stimulating factors: (1) micro-patterned surface that can directionally guide the axon as physical cue; (2) neurotrophic gradient membrane that can continually attract axon outgrowth from the proximal to distal stump as chemical cue; (3) Schwann cells (SCs) that can support the growth of neurite and form myelin sheath around axon as biological cue, we expect that this construct can be used as a promising NGC for peripheral nerve regeneration...
February 28, 2017: Biofabrication
https://www.readbyqxmd.com/read/28169270/using-loop-connectors-as-an-interim-mode-of-treatment-an-interdisciplinary-approach
#20
T Aby Mathew, Ashwin Thomas Koshy, Annie Susan Thomas, Angel Mary Joseph, Nicholas Mathew
To tackle a large midline diastema and generalized spacing existing before extraction often poses a challenge to the treating prosthodontist. The situation becomes even more complicated if the patient is a teenager, with multiple missing teeth, associated deep bite and where the jaw bone growth has not yet been completed. Possible treatment options would include a removable prosthesis, a fixed partial denture or an implant supported prosthesis. Treating such cases with a simple removable prosthesis cannot be justified if a deep bite existed which would result in posterior disocclusion...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
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