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Implant restoration

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https://www.readbyqxmd.com/read/29233704/risk-factors-for-post-operative-complications-after-procedures-for-autologous-bone-augmentation-from-different-donor-sites
#1
Andreas Sakkas, Alexander Schramm, Karsten Winter, Frank Wilde
AIM: The aim of this study has been to identify risk factors for post-operative complications after grafting bone from different donor sites prior to implant placement. MATERIAL AND METHODS: The study encompassed 279 patients who underwent autologous bone augmentations in a 2-stage procedure, harvested from three intraoral and one extraoral donor sites, as well as sinus floor elevations prior to implant placement. The following complications were recorded: soft tissue dehiscence; wound infection; bone graft exposure; sensory disturbance; sinusitis symptoms; haemorrhage; graft failure; implant failure...
November 21, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233510/patient-specific-puzzle-implant-preformed-with-3d-printed-rapid-prototype-model-for-combined-orbital-floor-and-medial-wall-fracture
#2
Young Chul Kim, Kyung Hyun Min, Jong Woo Choi, Kyung S Koh, Tae Suk Oh, Woo Shik Jeong
BACKGROUND: The management of combined orbital floor and medial wall fractures involving the inferomedial strut is challenging due to absence of stable cornerstone. In this article, we proposed surgical strategies using customized 3D puzzle implant preformed with Rapid Prototype (RP) skull model. METHODS: Retrospective review was done in 28 patients diagnosed with combined orbital floor and medial wall fracture. Using preoperative CT scans, original and mirror-imaged RP skull models for each patient were prepared and sterilized...
November 29, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29233132/intraoral-scanners-in-dentistry-a-review-of-the-current-literature
#3
Francesco Mangano, Andrea Gandolfi, Giuseppe Luongo, Silvia Logozzo
BACKGROUND: Intraoral scanners (IOS) are devices for capturing direct optical impressions in dentistry. The purpose of this narrative review on the use of IOS was to: (1) identify the advantages/disadvantages of using optical impressions compared to conventional impressions; (2) investigate if optical impressions are as accurate as conventional impressions; (3) evaluate the differences between the IOS currently available commercially; (4) determine the current clinical applications/limitations in the use of IOS...
December 12, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/29232298/use-of-a-new-expanded-polytetrafluoroethylene-multichordal-mitral-apparatus-mitrapatch-to-repair-complex-mitral-valve-lesions
#4
Surendra K Chawla, Muralidhar Padala, W Randolph Chitwood, Robert W M Frater
OBJECTIVE: We report a new expanded polytetrafluoroethylene multichordal mitral apparatus (MitraPatch) to simplify mitral repairs involving multiple cusps and sought to describe the surgical technique and demonstrate the efficacy of the device. METHODS: MitraPatch was laser cut from a single sheet of expanded polytetrafluoroethylene and mounted on a custom-designed handle. Surgical technique to deploy the apparatus on the native mitral valve was developed in ex vivo porcine hearts...
December 7, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29231669/single-unit-cement-retained-implant-restorations-strategies-protocols-and-techniques
#5
Todd Schoenbaum, Richard G Stevenson, Alireza Moshaverinia
No abstract text is available yet for this article.
June 2017: Dentistry Today
https://www.readbyqxmd.com/read/29229076/the-use-of-3d-models-to-improve-sinus-augmentation-outcomes-a-case-report
#6
REVIEW
Selina H Somji, Agnetha Valladares, Sun Ho Kim, Yung Cheng Paul Yu, Stuart J Froum
Sinus augmentation is a predictable procedure that is often required when restoring the posterior maxilla with dental implants. Even with high success rates, careful pre-surgical planning is crucial. A 3D model is a valuable aid for the clinician as it allows for pre-operative simulation, which can reduce surgical time, reduce the risk of intra-operative complications and decrease the potential for error. The aim of this case report is to focus on how such a model is useful when undertaking a sinus augmentation procedure with simultaneous implant placement...
December 2017: Singapore Dental Journal
https://www.readbyqxmd.com/read/29227279/drug-eluting-balloon-design-technology-and-clinical-aspects
#7
Meenasree Bukka, Poorna Jyothi Rednam, Mukty Sinha
Drug eluting balloon is a non-stent technology in which an effective homogenous delivery of anti-proliferative drug processed to the vessel wall through inflated balloon. This is done to restore luminal vascularity in order to treat atherosclerosis, in-stent restenosis and reduce risk of late thrombosis without implanting a permanent foreign object. The balloon technology relies on the concept of targeted delivery of drug which helps in rapid healing of vessel wall and prevents the proliferation of smooth muscle cell...
December 11, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29227111/key-factors-in-prevention-of-peri-implant-diseases
#8
Mariano Sanz, Myroslav Solonko, Fernando Luengo
Prevention and treatment of peri-implant diseases have become a key element in modern implant dentistry. The long-term success of implantsupported restorations is not only dependent on the quality and precision of modern implant systems, but on the efficacy of preventive measures for thelong-term maintenance of peri-implant tissues.
September 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/29227036/bottom-up-nanoencapsulation-from-single-cells-to-tunable-and-scalable-cellular-spheroids-for-hair-follicle-regeneration
#9
Jin Wang, Yong Miao, Yong Huang, Bojie Lin, Xiaomin Liu, Shune Xiao, Lijuan Du, Zhiqi Hu, Malcolm Xing
Cell surface engineering technology advances cell therapeutics and tissue engineering by accurate micro/nanoscale control in cell-biomaterial ensembles and cell spheroids formation. By tailoring cell surface, microgels can encapsulate cells for versatile uses. However, microgels are coated in a thick layer to house multiple cells together but not a single cell based. Besides, excessive deposition on cell surface is detrimental to cellular functions. Herein, layer-by-layer (LbL) self-assembly to encapsulate single cell using nanogel is reported, owing to its security and tunable thickness at nanoscale, and further forms cell spheroids by physical cross-linking on nanogel-coated cells for delivery...
December 11, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29225150/decellularised-conjunctiva-for-ocular-surface-reconstruction
#10
Joana Witt, Sonja Mertsch, Maria Borrelli, Jana Dietrich, Gerd Geerling, Stefan Schrader, Kristina Spaniol
Conjunctival reconstruction is an integral component of ocular surface restoration. Decellularised tissues are frequently used clinically for tissue engineering. This study identifies porcine decellularised conjunctiva (PDC) and human decellularised conjunctiva (HDC) as promising substitutes for conjunctival reconstruction. PDC and HDC were nearly DNA-free, structurally intact and showed no cytotoxic effects in vitro, which was confirmed by DNA quantification, histology, transmission electron microscopy, collagen quantification and cytotoxicity assay...
December 7, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29223778/differences-in-trochlear-parameters-between-native-and-prosthetic-kinematically-or-mechanically-aligned-knees
#11
C Rivière, F Iranpour, S Harris, E Auvinet, A Aframian, S Parratte, J Cobb
INTRODUCTION: Kinematic (KA) and mechanical (MA) alignment techniques are two different philosophies of implant positioning that use the same TKA implants. This might generate differences in the resulting prosthetic trochlea parameters between the two techniques of alignment. Our study aim was to test the following hypotheses: 1) Mechanically or kinematically aligned femoral implant understuffs the native trochlear articular surface and poorly restores the native groove orientation, and 2) The orientation of the prosthetic trochlear groove and trochlear fill are different between MA and KA...
December 6, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29223522/custom-made-titanium-3d-printed-interbody-cages-for-treatment-of-osteoporotic-fracture-related-spinal-deformity
#12
Timothy Siu, Jeffrey M Rogers, Kainu Lin, Robert Thompson, Mark Owbridge
BACKGROUND: Advances in minimally invasive interbody fusion have greatly enhanced surgeons' capability to correct adult spinal deformity with reduced morbidity. However, the feasibility of such approaches is limited in patients with previous osteoporotic fractures as the resultant vertebral deformity renders the endplate geometry incongruous with conventional interbody implants. Current 3D printing technology offers a novel solution by fabricating custom-made implants tailored to individual anatomy...
December 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29218286/experience-of-breast-augmentation-in-pakistani-females
#13
Muhammad Ahmad
BACKGROUND: Breast augmentation is an elective surgery used to increase the size of the breast in females. This study was undertaken to determine the breast augmentation in Pakistani females. METHODS: From 2006 to 2011, 43 female patients who underwent breast augmentation via infra-mammary, periareolar, trans-umbilical and fat transfer were enrolled. For augmentation, saline-filled or gel-filled implants were used in the supine position under general anesthesia and local infiltration of adrenaline (1:100,000 dilution) on each side...
September 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/29216869/horizontal-ridge-reconstruction-of-the-anterior-maxilla-using-customized-allogeneic-bone-blocks-with-a-minimally-invasive-technique-a-case-series
#14
Laurent Venet, Michel Perriat, Francesco Guido Mangano, Thomas Fortin
BACKGROUND: Different surgical procedures have been proposed to achieve horizontal ridge reconstruction of the anterior maxilla; all these procedures, however, require bone replacement materials to be adapted to the bone defect at the time of implantation, resulting in complex and time-consuming procedures. The purpose of this study was to describe how to use a 3D printed hardcopy model of the maxilla to prepare customized milled bone blocks, to be adapted on the bone defect areas using a minimally invasive subperiosteal tunneling technique...
December 8, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/29215082/the-myokinetic-control-interface-tracking-implanted-magnets-as-a-means-for-prosthetic-control
#15
S Tarantino, F Clemente, D Barone, M Controzzi, C Cipriani
Upper limb amputation deprives individuals of their innate ability to manipulate objects. Such disability can be restored with a robotic prosthesis linked to the brain by a human-machine interface (HMI) capable of decoding voluntary intentions, and sending motor commands to the prosthesis. Clinical or research HMIs rely on the interpretation of electrophysiological signals recorded from the muscles. However, the quest for an HMI that allows for arbitrary and physiologically appropriate control of dexterous prostheses, is far from being completed...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214949/-a-review-on-psychosomatic-factors-affecting-the-outcome-after-total-knee-arthroplasty-tka
#16
Matthias Vogel, Christian Riediger, Sebastian Illiger, Jörg Frommer, Christoph H Lohmann
A review on psychosomatic factors affecting the outcome after total knee-arthroplasty (TKA) Objectives: In today's ageing Western societies, arthroplasty is a common treatment for endstage osteoarthritis. Despite highly developed implants and surgery, however, this treatment does not always succeed in relieving pain and restoring joint function, i.e., in restoring satisfactory algofunction. Clinicians partly blame psychological factors for this discrepancy, especially in the absence of objective medical complications...
December 2017: Zeitschrift Für Psychosomatische Medizin und Psychotherapie
https://www.readbyqxmd.com/read/29214714/micromotion-analysis-of-different-implant-configuration-bone-density-and-crestal-cortical-bone-thickness-in-immediately-loaded-mandibular-full-arch-implant-restorations-a-nonlinear-finite-element-study
#17
Tsutomu Sugiura, Kazuhiko Yamamoto, Satoshi Horita, Kazuhiro Murakami, Tadaaki Kirita
BACKGROUND: Excessive micromotion may cause failure of osseointegration between the implant and bone. PURPOSE: This study investigated the effects of implant configuration, bone density, and crestal cortical bone thickness on micromotion in immediately loaded mandibular full-arch implant restorations. MATERIALS AND METHODS: A finite element model of the edentulous mandible was constructed. Four implants were inserted in two different configurations, which were four parallel implants or tilted distal implants according to the all-on-four concept...
December 6, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29209162/characterization-of-cochlear-vestibular-and-cochlear-vestibular-electrically-evoked-compound-action-potentials-in-patients-with-a-vestibulo-cochlear-implant
#18
T A K Nguyen, Samuel Cavuscens, Maurizio Ranieri, Konrad Schwarz, Nils Guinand, Raymond van de Berg, Thomas van den Boogert, Floor Lucieer, Marc van Hoof, Jean-Philippe Guyot, Herman Kingma, Silvestro Micera, Angelica Perez Fornos
The peripheral vestibular system is critical for the execution of activities of daily life as it provides movement and orientation information to motor and sensory systems. Patients with bilateral vestibular hypofunction experience a significant decrease in quality of life and have currently no viable treatment option. Vestibular implants could eventually restore vestibular function. Most vestibular implant prototypes to date are modified cochlear implants to fast-track development. These use various objective measurements, such as the electrically evoked compound action potential (eCAP), to supplement behavioral information...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29209135/first-case-of-cross-auxiliary-double-domino-donor-liver-transplantation
#19
Zhi-Jun Zhu, Lin Wei, Wei Qu, Li-Ying Sun, Ying Liu, Zhi-Gui Zeng, Liang Zhang, En-Hui He, Hai-Ming Zhang, Ji-Dong Jia, Zhong-Tao Zhang
We report a case of double domino liver transplantation in a 32-year-old woman who was diagnosed with familial amyloid polyneuropathy (FAP) and liver dysfunction. A two-stage surgical plan was designed, and one domino graft was implanted during each stage. During the first stage, an auxiliary domino liver transplantation was conducted using a domino graft from a 4-year-old female child with Wilson's disease. After removing the right lobe of the FAP patient's liver, the graft was rotated 90 degrees counterclockwise and placed along the right side of the inferior vena cava (IVC)...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29208809/optimizing-outcomes-with-multifocal-intraocular-lenses
#20
REVIEW
Gitansha Shreyas Sachdev, Mahipal Sachdev
Modern day cataract surgery is evolving from a visual restorative to a refractive procedure. The advent of multifocal intraocular lenses (MFIOLs) allows greater spectacle independence and increased quality of life postoperatively. Since the inception in 1980s, MFIOLs have undergone various technical advancements including trifocal and extended depth of vision implants more recently. A thorough preoperative workup including the patients' visual needs and inherent ocular anatomy allows us to achieve superior outcomes...
December 2017: Indian Journal of Ophthalmology
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