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Soft tissue AND implant AND bone

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https://www.readbyqxmd.com/read/28636124/the-ips-scale-a-new-soft-tissue-assessment-scale-for-percutaneous-and-transcutaneous-implants-for-bone-conduction-devices
#1
Ivo J Kruyt, Rik C Nelissen, Martin L Johansson, Emmanuel A M Mylanus, Myrthe K S Hol
Percutaneous titanium implants for bone conduction devices (BCDs) have offered, since 1977, a solution for patients with hearing loss not treatable by conventional hearing aids, such as patients with chronic ear infections or microtia and/or ear canal atresia. Percutaneous implants imply a continuous breach in the mechanical defensive barrier of the skin. To compensate for this breach, immunological mechanisms in the subcutaneous tissue surrounding the implant become more active. This article is protected by copyright...
June 21, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28634845/histomorphometric-and-immunohistochemical-evaluation-of-collagen-containing-xenogeneic-bone-blocks-used-for-lateral-bone-augmentation-in-staged-implant-placement
#2
Alberto Ortiz-Vigón, Sergio Martinez-Villa, Iñaki Suarez, Fabio Vignoletti, Mariano Sanz
BACKGROUND: The osteoconductive properties of collagen containing xenogeneic bone blocks (CCXBB) remain unclear. The aim of this prospective single-arm clinical study was to assess the histological outcomes of CCXBB blocks used as bone replacement grafts for lateral bone augmentation procedures. METHODS: In 15 patients with severe horizontal alveolar ridge resorption, lateral augmentation procedures were performed using CCXBB as bone replacement grafts. Twenty-six weeks postoperatively, a re-entry procedure was performed to evaluate the bone width for adequate implant placement and two histological specimens were retrieved from each patient, one being processed for ground sectioning and the other for decalcified paraffin-included sections...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28628354/soft-tissue-enhancement-and-implant-placement-following-partial-mandibulectomy-due-to-squamous-cell-carcinoma
#3
Fabio Bernardello, Giampietro Bertasi, Ralph Mackey Powers, Sergio Spinato, Andrea Viaggi, Jimmie Bullock, Pietro Felice
Many dental procedures allow for implant placement in partially or totally edentulous patients. Despite the availability of various implant and abutment types on the market, it often becomes quite challenging to achieve the biological and esthetic goals in a patient who has ridge deficiencies. Where problems will arise is from the lack of adequate bone quality and quantity.1,2 Soft tissue form and maintenance is also a consideration to evaluate.3 Primary reconstructive techniques following segmental mandibulectomy is evolving and improves quality of life...
June 19, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28625187/a-comparison-study-of-complications-and-initial-follow-up-costs-of-transcutaneous-and-percutaneous-bone-conduction-devices
#4
J Godbehere, S D Carr, J Moraleda, P Edwards, J Ray
BACKGROUND: The percutaneous osseointegrated bone conduction device can be associated with more soft tissue complications when compared to the magnetic transcutaneous osseointegrated bone conduction device. This study aimed to determine whether fewer soft tissue complications may result in the transcutaneous osseointegrated bone conduction device being a lower cost option in hearing rehabilitation. METHODS: This retrospective case note review included adult patients who underwent implantation with the transcutaneous Cochlear Attract (n = 22) or percutaneous Cochlear DermaLock (n = 25) bone-anchored hearing aids between September 2013 and December 2014...
June 19, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28625076/the-one-abutment-one-time-protocol-a-systematic-review-and-meta-analysis
#5
Momen A Atieh, Andrew Tawse-Smith, Nabeel H M Alsabeeha, Sunyoung Ma, Warwick J Duncan
BACKGROUND: The use of definitive abutments (DAs) at the time of implant placement has been introduced to overcome the limitations of dis/reconnection of healing / provisional abutments (PAs). With little and inconsistent information in the literature regarding the effectiveness of using DAs, the aim of this systematic review was to examine marginal bone and soft tissue level changes, technical and biological complications and implant failure associated with the use of DAs and PAs. METHODS: This systematic review was prepared according to the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement...
June 19, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28622842/two-stage-knee-arthrodesis-with-a-modular-intramedullary-nail-due-to-septic-failure-of-revision-total-knee-arthroplasty-with-extensor-mechanism-deficiency
#6
Max J Friedrich, Jan Schmolders, Matthias D Wimmer, Andreas C Strauss, Milena M Ploeger, Dieter C Wirtz, Sascha Gravius, Thomas M Randau
BACKGROUND: Periprosthetic joint infection is a serious complication and reconstruction after failed revision total knee arthroplasty with significant bone loss and compromised soft-tissues can be challenging. Objective of this study was to assess clinical and functional results, implant survival and infection recurrence rates in patients treated with two-stage arthrodesis after failed revision TKA with extensor mechanism deficiencies due to PJI, and to identify the factors that affect outcomes after surgery...
June 13, 2017: Knee
https://www.readbyqxmd.com/read/28614276/wrist-arthrodesis-with-femoral-head-structural-allograft-after-failed-total-wrist-arthroplasty
#7
Louis C Grandizio, Steven Maschke
The failed total wrist arthroplasty represents a challenging reconstructive problem for the upper extremity surgeon. Bone loss, poor bone quality, and soft tissue defects all present technical challenges when considering revision procedures. Our purpose is to describe a technique for wrist arthrodesis after failed total wrist arthroplasty utilizing fresh-frozen femoral head allograft and dorsal plate fixation. We describe a simple method of allograft preparation for this procedure, as graft preparation and implantation can be time consuming and technically challenging...
June 13, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28604223/soft-tissue-enhancement-combined-with-biologically-oriented-preparation-technique-bopt-to-correct-volumetric-bone-defects-a-clinical-case-report
#8
Davide Rancitelli, Pierpaolo Poli, Marco Cicciù, Francesco Lini, Rachele Roncucci, Gabriele Cervino, Carlo Maiorana
The aim of the present case report was to illustrate how to obtain an ideal alveolar ridge contour by means of peri-implant soft tissues management combined with the prosthetic approach of the biologically oriented preparation technique (BOPT). A patient presenting a moderate vertical and horizontal bone loss in the posterior maxilla was treated with sinus floor elevation and contextual implant placement. During the re-entry procedure, the horizontal defect was corrected with an apically repositioned flap combined with a connective tissue graft...
June 12, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28582296/free-vastus-intermedius-muscle-flap-a-successful-alternative-for-complex-reconstruction-of-the-neurocranium-in-preoperated-patients
#9
Dominik Horn, Christian Freudlsperger, Moritz Berger, Kolja Freier, Oliver Ristow, Jürgen Hoffmann, Oliver Sakowitz, Michael Engel
The reconstruction of large cranial and scalp defects is a surgical and esthetic challenge. Single autologous tissue transfer can be insufficient due to the defect size and the anatomic complexity of the recipient site. Alloplastic patient-specific preformed implants can be used to recover hard tissue defects of the neurocranium. Nevertheless, for long-term success adequate soft tissue support is required. In this brief clinical study, the authors describe calvarian reconstruction in a 33-year-old patient with wound healing disorder after an initial resection of ependymoma...
June 2, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28577573/differences-in-placement-of-calcium-phosphate-hybridized-tendon-grafts-within-the-femoral-bone-tunnel-during-acl-reconstruction-do-not-influence-tendon-to-bone-healing
#10
Hirotaka Mutsuzaki, Hiromi Nakajima, Shunsuke Nomura, Masataka Sakane
BACKGROUND: Calcium phosphate (CaP)-hybridization of tendon grafts has been shown to improve tendon-to-bone healing. The purpose of this study was to clarify the influence of different tendon graft placement methods on tendon-to-bone healing using CaP-hybridized tendon grafts in anterior cruciate ligament (ACL) reconstructions in rabbits. METHODS: We compared two methods of tendon graft placement within the femoral bone tunnel: suspension of the tendon graft within the bone tunnel (suspension group) and implantation of the tendon graft coherent with the bone socket (coherence group)...
June 2, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28577053/regenerative-properties-of-collagenated-porcine-bone-grafts-in-human-maxilla-demonstrative-study-of-the-kinetics-by-synchrotron-radiation-microtomography-and-light-microscopy
#11
Alessandra Giuliani, Giovanna Iezzi, Serena Mazzoni, Adriano Piattelli, Vittoria Perrotti, Antonio Barone
OBJECTIVES: Recently, it has been reported that heterologous biomaterials, where the collagen matrix is preserved, seem to facilitate blood clotting and the subsequent invasion of repairing and regenerative cells. This study aimed at evaluating the healing of human extraction sockets grafted with a collagenated cortico-cancellous porcine bone (mp3®, OsteoBiol®, Tecnoss®, Giaveno, Italy) by synchrotron radiation X-ray microtomography (microCT) and histology in order to have a 3D quantitative characterization over time...
June 2, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28573264/effects-of-combining-insulin-like-growth-factor-1-and-platelet-derived-growth-factor-on-osteogenesis-around-%C3%A2-dental-implants
#12
Wan Lin Zhou, Lin Lin Li, Xin Ru Qiu, Qi An, Mei Hua Li
OBJECTIVE: To explore the effects of the combination of insulin-like growth factor 1 (IGF-1) and platelet-derived growth factor (PDGF) on bone formation around dental implants. METHODS: A total of 24 adult rabbits were included in this experiment. Titanium machine-polished dental implants were placed in the iliac bones to simulate dental implants in the alveolar bone. The rabbits were randomly divided into four groups; a saline treated control group (NS), an IGF-1 treated group, a PDGF-BB treated group, and a combination of IGF-1 and PDGF-BB treated group...
2017: Chinese Journal of Dental Research
https://www.readbyqxmd.com/read/28571286/staged-hard-and-soft-tissue-reconstruction-followed-by-implant-supported-restoration-in-the-aesthetic-zone-a-case-report
#13
Harinath Parthasarathy, Lakshmi Ramachandran, Anupama Tadepalli, Deepa Ponnaiyan
Alveolar ridge deficiency is a common clinical consequence following tooth loss due to chronic periodontitis complicating ideal implant placement. Advanced hard and soft tissue augmentation procedures have been developed in the recent past with predictable clinical outcomes. A male patient presented with a Grade III mobile upper right central incisor associated with advanced bone loss and soft tissue deficit. Following extraction of tooth #11, socket augmentation was done using an autogenous cortico-cancellous block graft and subsequent soft tissue augmentation was done with palatal connective tissue graft...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28567530/immediate-definitive-individualized-abutments-reduce-peri-implant-bone-loss-a-randomized-controlled-split-mouth-study-on-16-patients
#14
M Erhan Çömlekoğlu, Nejat Nizam, Mine Dündar Çömlekoğlu
OBJECTIVES: This paper aims to observe peri-implant time-related vertical bone level and soft tissue changes with immediate, non-detached glass-ceramic (lithium-disilicate) individualized abutments and dis-/reconnections. MATERIALS AND METHODS: Sixteen split-mouth patients received provisionalized immediate definitive individualized abutments (test T) versus dis-/reconnected individualized abutments (control C). In group T, digital impressions were made by using titanium bases (Conelog, Camlog), and individualized abutments (E...
May 31, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28566784/management-of-open-fractures-using-a-noncontact-locking-plate-as-an-internal-fixator
#15
Azad Yıldırım, Ahmet Kapukaya, Yılmaz Mertsoy, Şehmus Yiğit, Mehmet Akif Çaçan, Ramazan Atiç
BACKGROUND: The treatment of open fractures leads to major problems which may be due to various reasons. It mainly causes soft tissue problems due to the absorption of a large amount of energy by the soft tissues and bone tissues. Although some recent treatment protocols have eliminated many problems regarding delayed soft tissue closure, it still remains a big challange. This study uses a method called the internal fixator technique with noncontact locking plate (NC-LP) which involves the use of a combination of advantages of open and closed fixation techniques...
May 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28562185/hypoxia-biomimicry-to-enhance-monetite-bone-defect-repair
#16
Justin Drager, Jose Luis Ramirez-GarciaLuna, Abhishek Kumar, Uwe Gbureck, Edward J Harvey, Jake Barralet
Tissue hypoxia is a critical driving force for angiogenic and osteogenic responses in bone regeneration and is, at least partly, under the control of the Hypoxia Inducible Factor-1α (HIF-1α) pathway. Recently, the widely used iron chelator Deferoxamine (DFO) has been found to elevate HIF-1α levels independent of oxygen concentrations, thereby, creating an otherwise normal environment that mimics the hypoxic state. This has the potential to augment the biological properties of inorganic scaffolds without the need of recombinant growth factors...
May 31, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28560543/bone-and-soft-tissue-histology-a-new-approach-to-determine-characteristics-of-offending-instrument-in-sharp-force-injuries
#17
Tania Delabarde, Catherine Cannet, Jean Sébastien Raul, Annie Géraut, Marc Taccoen, Bertrand Ludes
This paper describes a new approach to determine characteristics of the implement used to inflict trauma which involves the histological analysis of exogenous particles. Based on Locard's principle "every contact leaves a trace," we decided to assess whether histological examination of bone and soft tissue around a penetrating injury (sharp force trauma) could provide evidence of the offending implement. Case reports and experimental studies have demonstrated the potential of cut mark features in bone to identify the causative implement and potentially assist in identifying the perpetrator...
May 30, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28555201/reconstruction-of-horizontovertical-alveolar-defects-presentation-of-a-novel-split-thickness-flap-design-%C3%A2-for-guided-bone-regeneration-%C3%A2-a-case-report-with-5-year-follow-up
#18
Peter Windisch, Anna Martin, Arvin Shahbazi, Balint Molnar
OBJECTIVE: To introduce a novel split-thickness flap design without periosteal and vertical releasing incisions for horizontovertical ridge augmentation. METHOD AND MATERIALS: Three patients with generalized chronic periodontitis presented posterior partial edentulism with class C alveolar defects according to the horizontal, vertical, and combination (HVC) classification. In all three cases, implant placement and simultaneous horizontovertical ridge augmentation utilizing a novel split-thickness flap design was performed...
2017: Quintessence International
https://www.readbyqxmd.com/read/28554344/overview-of-nanoparticle-coating-of-dental-implants-for-enhanced-osseointegration-and-antimicrobial-purposes
#19
Feridoun Parnia, Javad Yazdani, Vahid Javaherzadeh, Solmaz Maleki Dizaj
PURPOSE: Nanomaterials are suitable candidates for coating of titanium based (Ti-based) dental implants due to their unique properties. The objective of this article is to summarize the application of nanoparticles as Ti-based implant coating materials in order to control and improve the implant success rate with focus on enhanced osseointegration and antimicrobial purposes. METHOD: This review was conducted using electronic databases and MeSH keywords to detect associated scientific literature published in English...
2017: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28552661/30years-of-dxa-technology-innovations
#20
Claus-C Glüer
As the successor of Dual Photon Absorptiometry (DPA), Dual X-ray Absorptiometry (DXA) has seen 30years of continuous technological innovations. Implementation of measures for standardization and quality assurance made DXA a reliable and clinically useful approach. Its use in clinical multicenter drug studies in osteoporosis lead to general acceptance as the standard technique of bone densitometry. The limitations of DXA are well established. As a measure of areal bone mineral density (aBMD) it depends on bone size and is biased by overlaying soft tissue and calcified structures...
May 24, 2017: Bone
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