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Implant restoration

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https://www.readbyqxmd.com/read/29044974/quality-of-life-related-variables-measured-for-three-multifocal-diffractive-intraocular-lenses-a-prospective-randomised-clinical-trial
#1
Jorge L Alió, Hakan Kaymak, Detlef Breyer, Beatrice Cochener, Ana B Plaza-Puche
IMPORTANCE: Quality of vision after multifocal intraocular lens (IOLs) implantation in relation to patient satisfaction. It is important to include the evaluation of visual quality and patient satisfaction in clinical practice. BACKGROUND: To evaluate and compare quality of life and patient satisfaction after implantation of three types of diffractive- refractive and apodized-diffractive bifocal and trifocal multifocal IOLs. DESIGN: Comparative, prospective, case series, randomized PARTICIPANTS: 104 eyes of 52 patients METHODS: 104 eyes of 52 patients underwent phacoemulsification surgery with bilateral implantation of one of three multifocal IOLs: AT LISA 809M (Carl Zeiss Meditec) (AT LISA group, 38 eyes), AT LISAtri 839MP (Carl Zeiss Meditec) (AT LISAtri group, 32 eyes), and ReSTOR SN6AD1 (Alcon) (ReSTOR group, 34 eyes)...
October 16, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29044894/immediate-implant-placement-and-provisionalization-following-tumor-resective-surgery-in-the-midfacial-region-a-case-series
#2
Nelson Fernandes, Jacobus van den Heever, Leanne Sykes
Surgical and prosthodontic restoration of the midfacial region following tumor resection has always posed a considerable challenge, as this area serves crucial functional and esthetic roles. Being diagnosed and subsequently treated for facial tumors can have an immense psychosocial impact on a patient, as the resulting defects are often disfiguring, and lead to an inability to masticate, swallow, and speak clearly. Provision of an immediate facial and dental prosthesis at the time of surgery can limit these side effects and help reduce mental duress on these patients and their families, as well as aid in the process of rehabilitation...
October 18, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29044723/the-effects-of-crown-venting-or-pre-cementing-of-cad-cam-constructed-all-ceramic-crowns-luted-on-ytz-implants-on-marginal-cement-excess
#3
Lucia K Zaugg, Isabella Zehnder, Nadja Rohr, Jens Fischer, Nicola U Zitzmann
OBJECTIVES: The purpose of this study was to analyze the cement excess produced when cementing CAD/CAM-fabricated lithium disilicate (L) or zirconium dioxide (Z) crowns using adhesive cement (A) or resin-modified glass ionomer cement (B). Three different cementation techniques were applied: palatal venting (PV), pre-cementation with custom analogs (CA), and conventional standard procedure (SP). MATERIALS AND METHODS: Seventy-two crowns (36 each material) were assigned to 12 experimental groups depending on the restoration material (L, Z), type of cement (A, B), and cementation technique (PV, CA, SP)...
October 17, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29042741/management-of-broken-dental-implant-abutment-in-a-patient-with-bruxism-a-rare-case-report-and-review-of-literature
#4
Saad Al-Almaie
This rare case report describes prosthodontic complications resulting from a dental implant was placed surgically more distally in the area of the missing mandibular first molar with a cantilever effect and a crest width of >12 mm in a 59-year-old patient who had a history of bruxism. Fracture of abutment is a common complication in implant was placed in area with high occlusal forces. Inability to remove the broken abutment may most often end up in discarding the implant. Adding one more dental implant mesially to the previously placed implant, improvisation of technique to remove the broken abutment without sacrificing the osseointegrated dental implant, fabrication with cemented custom-made abutment to replace the broken abutment for the first implant, and the use of the two implants to replace a single molar restoration proved reliable and logical treatment solutions to avoid these prosthodontic complications...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29042724/evaluation-of-bond-strength-between-grooved-titanium-alloy-implant-abutments-and-provisional-veneering-materials-after-surface-treatment-of-the-abutments-an-in-vitro-study
#5
Gowtham Venkat, Murugesan Krishnan, Suganya Srinivasan, Muthukumar Balasubramanian
INTRODUCTION: Titanium has become the material of choice with greater applications in dental implants. The success of the dental implant does not only depend on the integration of the implant to the bone but also on the function and longevity of the superstructure. The clinical condition that demands long-term interim prosthesis is challenging owing to the decreased bond between the abutment and the veneering material. Hence, various surface treatments are done on the abutments to increase the bond strength...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29042591/diffusion-and-distribution-of-deuterium-in-scandium-deuteride-thin-films-under-irradiation-of-deuterium-ion-beam
#6
Tao Wang, Jidong Long, Shiwei Wang, Zhen Yang, Jie Li, Gang Huang, Linwen Zhang, Allen Jian Yang, Xiao Renshaw Wang
Scandium deuteride (ScDx) thin films, as an alternative target for deuterium-deuterium (D-D) reaction, are a very important candidate for detection and diagnostic applications. Albeit with their superior thermal stability, the ignorance of the stability of ScDx under irradiation of deuterium ion beam hinders the realization of their full potential. In this report, we characterize ScDx thin films with scanning electron microscopy (SEM) and X-ray diffraction (XRD), Rutherford backscattering spectroscopy (RBS) and elastic recoil detection analysis (ERDA)...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29042114/extending-the-service-life-of-existing-dental-restorations-with-esthetic-and-functional-limitations
#7
Malin Strasding, Vincent Fehmer, Bjarni E Pjetursson, Irena Sailer
Adhesive cementation is a useful procedure not only for cementing restorations onto teeth but also for attaching new ceramic restorations to existing restorations to improve their esthetics and/or function. This clinical report presents a technique for modifying an existing nonsatisfactory implant-supported fixed dental prosthesis by means of adhesively cemented veneers and onlays bonded to the pre-existing metal-ceramic surface with resin cement. This modification may avoid the replacement of the fixed dental prosthesis, reducing both treatment costs and time while fulfilling the patient's demands...
October 14, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29037893/gelatin-promotes-rapid-restoration-of-the-blood-brain-barrier-after-acute-brain-injury
#8
Lucas S Kumosa, Valdemar Zetterberg, Jens Schouenborg
Gelatin coating of brain implants is known to provide considerable benefits in terms of reduced inflammatory sequalae and long-term neuroprotective effects. However, the mechanisms for gelatin's protective role in brain injury are still unknown. To address this question, cellular and molecular markers were studied with quantitative immunohistochemical microscopy at acute (<2 hours, 1, 3 days), intermediate (1-2 weeks) and long-term time points (6 weeks) after transient insertion of stainless steel needles into female rat cortex cerebri with or without gelatin coating...
October 13, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29036754/patellofemoral-cartilage-restoration-indications-techniques-and-outcomes-of-autologous-chondrocytes-implantation-matrix-induced-chondrocyte-implantation-and-particulated-juvenile-allograft-cartilage
#9
https://www.readbyqxmd.com/read/29034578/a-prospective-split-mouth-study-comparing-tilted-implants-with-angulated-connection-versus-conventional-implants-with-angulated-abutment
#10
Manú Van Weehaeghe, Hugo De Bruyn, Stefan Vandeweghe
BACKGROUND: An angulation of the implant connection could overcome the problems related to angulated abutments. PURPOSE: This study compares conventional implants with angulated abutment to tilted implants with an angulated connection. MATERIALS AND METHODS: Twenty patients were treated in the edentulous mandible. In the posterior jaw locations, one conventional tilted implant with angulated abutment and one angulated implant without abutment were placed...
October 16, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29033393/new-bioactive-glass-scaffolds-with-exceptional-qualities-for-bone-tissue-regeneration-response-of-osteoblasts-and-osteoclasts
#11
Tia Kowal, Natalie C Hahn, Stephanie Eider, Jutta Marzillier, Daniella Marie Fodera, Ukrit Thamma, Himanshu Jain, Matthias M Falk
Tissue regeneration is a significantly improved alternative to tissue replacement by implants. It requires porous bioscaffolds for the restoration of natural tissue rather than relying on bio-inactive, often metallic implants. Recently, we developed technology for fabricating novel, nano-macroporous bioactive 'Tailored Amorphous Multi-Porous (TAMP)' hard tissue scaffolds using a 70 mol% SiO2-30 mol% CaO model composition. The TAMP silicate scaffolds, fabricated by a modified sol-gel process, have shown excellent biocompatibility via the rapid formation of hydroxyapatite in biological fluids as well as in early tests with bone forming cells...
October 16, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29023770/c-c-motif-chemokine-ligand-23-abolishes-er-stress-and-lps-induced-reduction-in-proliferation-of-bovine-endometrial-epithelial-cells
#12
Whasun Lim, Hyocheol Bae, Fuller W Bazer, Gwonhwa Song
To reduce embryonic losses in domestic animals for economic production of livestock meat and milk, chemokines and their receptors are required for proper implantation and placentation during early pregnancy. In this study, we investigated the effects of C-C-motif chemokine ligand 23 (CCL23) on the proliferation of bovine endometrial (BEND) epithelial cells. CCL23 treatment improved BEND cell proliferation by enhancing PCNA and cyclin D1 expression via activation of the PI3K/AKT and MAPK signaling pathways. In addition, a combination of CCL23 and tunicamycin reversed the ER stress-induced reduction in cell proliferation and the decreased expression of UPR-mediated signaling proteins, including IRE1α, PERK, and ATF6α...
October 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29023607/immediate-palatal-molar-implants-a-simple-safe-minimally-invasive-technique
#13
Piotr Wychowański, Jarosław Woliński, Marcin Kacprzak, Witold Tomkiewicz, Iwańczyk Bartłomiej, Dorota Szubińska-Lelonkiewicz, Andrzej Wojtowicz, Myron Nevins
The purpose of this study was to determine whether a single immediate implant placed into the postextraction palatal socket of a maxillary molar would be as efficacious as a single implant placed centrally in a staged approach. A total of 61 immediate implants were placed in 52 patients and restored after 6 months. Periotest and Osstell were used to determine implant stability, and cone beam computed tomography was used for marginal bone level assessment. During the 2-year follow-up, implant survival was 100%...
November 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29017801/influence-of-increased-posterior-tibial-slope-in-total-knee-arthroplasty-on-knee-joint-biomechanics-a-computational-simulation-study
#14
Kyoung-Tak Kang, Yong-Gon Koh, Juhyun Son, Oh-Ryong Kwon, Jun-Sang Lee, Sae-Kwang Kwon
BACKGROUND: The reconstructed posterior tibial slope (PTS) plays a significant role in restoring knee kinematics in cruciate-retaining-total knee arthroplasty (TKA). A few studies have reported the effect of the PTS on biomechanics. METHODS: This study investigates the effect of the PTS on tibiofemoral (TF) kinematics, patellofemoral (PF) contact stress, and forces at the quadriceps, posterior cruciate ligament (PCL) and collateral ligament after cruciate-retaining-TKA using computer simulations...
September 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29017400/minimally-invasive-method-to-activate-the-expiratory-muscles-to-restore-cough
#15
Anthony F DiMarco, Robert T Geertman, Kutaiba Tabbaa, Rebecca R Polito, Krzysztof E Kowalski
CONTEXT: Spinal cord stimulation (SCS) via disc electrodes surgically placed via laminotomy incisions has been shown to restore an effective cough in subjects with spinal cord injury (SCI). The purpose of this study was to evaluate a new method of expiratory muscle activation utilizing spinal cord wire leads, which can be implanted with minimally invasive techniques. METHODS: In a subject with SCI, parallel wire leads with two electrode contacts were inserted percutaneously through a needle, advanced to the T9, T11 spinal levels and connected to an implanted radiofrequency receiver...
October 11, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28993079/lateral-femoral-epicondylar-osteotomy-for-correction-of-fixed-valgus-deformity-in-total-knee-arthroplasty-a-technical-note
#16
Jacob M Conjeski, Giles R Scuderi
BACKGROUND: Multiple surgical techniques exist to restore limb alignment and to balance soft tissues in valgus knees during total knee arthroplasty (TKA). One technique is to perform a lateral femoral epicondylar osteotomy. METHODS: A retrospective analysis was performed on all patients with a fixed valgus deformity that was corrected with a lateral femoral epicondylar osteotomy during TKA. Preoperative and postoperative Knee Society Knee Scores, knee stability, range of motion, and radiographic alignment were recorded...
September 19, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28991332/visual-performance-with-bifocal-and-trifocal-diffractive-intraocular-lenses-a-prospective-three-armed-randomized-multicenter-clinical-trial
#17
Hakan Kaymak, Detlev Breyer, Jorge L Alió, Beatrice Cochener
PURPOSE: To evaluate and compare quality of vision and reading performance outcomes after implantation of bifocal refractive-diffractive, bifocal apodized diffractive, or trifocal diffractive-refractive intraocular lenses (IOLs). METHODS: This randomized, prospective, three-armed multicenter (Spain, Germany, and France) trial included 104 eyes of 52 patients (mean age: 63.2 ± 7.7 years). Patients underwent cataract surgery with bilateral implantation of either AT LISA 809M (Carl Zeiss Meditec, Jena, Germany: AT LISA group, 38 eyes), AT LISA tri 839MP (Carl Zeiss Meditec: AT LISA tri group, 32 eyes), or ReSTOR SN6AD1 (Alcon Laboratories, Inc...
October 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28990720/autotransplantation-of-teeth-to-the-anterior-maxilla-a-systematic-review-of-survival-and-success-aesthetic-presentation-and-patient-reported-outcome
#18
Yousra Akhlef, Ole Schwartz, Jens O Andreasen, Simon Storgård Jensen
Tooth replacement in the anterior maxilla is most often indicated after traumatic dental injury or due to congenital missing teeth. Treatment alternatives include implant-supported restorations, conventional fixed bridges, acid-etched bridges, orthodontic space closure, or autotransplantation. Dental implants have gained increased popularity over the last 40 years. However, this treatment modality is contraindicated in patients with continuous growth of the alveolar process due to the risk of severe infrapostion of the dental implant...
October 9, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28989132/post-insertion-posterior-single-implant-occlusion-changes-at-different-intervals-a-t-scan-computerized-occlusal-analysis
#19
Azam S Madani, Mohammadreza Nakhaei, Malihe Alami, Hamidreza Rajati Haghi, Saied Mostafa Moazzami
AIM: The aim of this prospective cohort study was to evaluate the postinsertion posterior single-implant occlusion changes at 3- and 6-month intervals using T-Scan computerized occlusal analysis. MATERIALS AND METHODS: A total of 21 patients received single implant, opposed by natural dentition, in posterior regions of the maxilla or mandible (13 premolar, 8 molar) and were finally restored with cemented-retained metal-ceramic crowns. The occlusal contacts were equilibrated according to the implant-protective occlusion concept to develop light contact with heavy occlusion and no contact with light occlusion in maximum inter-cuspation...
October 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28987224/controversies-in-traditional-oral-and-maxillofacial-reconstruction
#20
REVIEW
John S Vorrasi, Antonia Kolokythas
Traditional reconstruction of the head and neck and significantly evolved over the last 20 to 30 years with advances in microvascular surgery, biologic materials such as bone morphogenic protein, and dental implant predictability. Earlier and more definitive reconstruction can now be achieved with combining therapies, allowing patients immediate restoration of function and improved cosmetics. Antiresorptive medications, such as Denosumab and bisphosphonates, have complicated bony reconstruction treatments with altered biology and less-predictable results...
November 2017: Oral and Maxillofacial Surgery Clinics of North America
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