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Soft tissue augmentation

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https://www.readbyqxmd.com/read/29781768/guided-bone-regeneration-and-implant-placement-in-association-with-a-coronally-positioned-palatal-sliding-flap-a-17-year-follow-up-case-report
#1
Carlo Maiorana, Pier Paolo Poli, Mario Beretta
The aim of the present case report was to show the 17-year hard and soft tissues stability of guided bone regeneration procedure associated with dental implants insertion. A 52-year-old male patient presented with a partial edentulism in the upper right maxilla. A graft consisting of deproteinized bovine bone mineral and autogenous bone stabilized by a non-resorbable expanded polytetrafluoroethylene membrane was used to reconstruct the missing bone applying the biological principles of guided bone regeneration...
May 21, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29766347/towards-alternative-approaches-for-coupling-of-a-soft-robotic-sleeve-to-the-heart
#2
Markus A Horvath, Claudia E Varela, Eimear B Dolan, William Whyte, David S Monahan, Christopher J Payne, Isaac A Wamala, Nikolay V Vasilyev, Frank A Pigula, David J Mooney, Conor J Walsh, Garry P Duffy, Ellen T Roche
Efficient coupling of soft robotic cardiac assist devices to the external surface of the heart is crucial to augment cardiac function and represents a hurdle to translation of this technology. In this work, we compare various fixation strategies for local and global coupling of a direct cardiac compression sleeve to the heart. For basal fixation, we find that a sutured Velcro band adheres the strongest to the epicardium. Next, we demonstrate that a mesh-based sleeve coupled to the myocardium improves function in an acute porcine heart failure model...
May 15, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29765377/neutrophils-inhibit-synthesis-of-mineralized-extracellular-matrix-by-human-bone-marrow-derived-stromal-cells-in-vitro
#3
Okan W Bastian, Michiel Croes, Jacqueline Alblas, Leo Koenderman, Luke P H Leenen, Taco J Blokhuis
Although controlled local inflammation is essential for adequate bone regeneration, several studies have shown that hyper-inflammatory conditions after major trauma are associated with impaired fracture healing. These hyper-inflammatory conditions include the trauma-induced systemic inflammatory response to major injury, open fractures, and significant injury to the surrounding soft tissues. The current literature suggests that increased or prolonged influx of neutrophils into the fracture hematoma may mediate impairment of bone regeneration after hyper-inflammatory conditions...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29762186/decision-making-for-management-of-periimplant-diseases
#4
Khaled Sinjab, Carlos Garaicoa-Pazmino, Hom-Lay Wang
INTRODUCTION: Nonsurgical and surgical management of periimplant mucositis and periimplantitis have shown promising results in arresting periimplant marginal bone loss (MBL) and preventing implant loss. However, management of periimplant diseases still remains unpredictable for full reconstruction of lost tissues and completely arrests disease progression. The present study proposes a decision tree that compiles both clinical and radiographic presentation of failing implants to aid in the decision making for their management...
May 11, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29729759/editorial-commentary-when-is-too-small-too-small-allograft-augmentation-of-autologous-hamstring-grafts-during-anterior-cruciate-ligament-reconstruction
#5
EDITORIAL
Kyle R Duchman, William E Garrett
Soft tissue allograft augmentation of small hamstring autografts, so-called hybrid grafts, has been proposed as an option during anterior cruciate ligament reconstruction (ACL-R). However, notable concerns exist with both small autograft use and allograft use during ACL-R, particularly in young, active patients. We currently choose to augment hamstring autografts with diameters <8.0 mm, adding only enough allograft to create a hybrid graft with an overall diameter no larger than 8.5 mm. Based on the available evidence, surgeons continue to seek the tipping point where the benefit of additional allograft tissue exceeds the consequence of its use...
May 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29722122/a-comparison-of-the-bone-regeneration-and-soft-tissue-formation-capabilities-of-various-injectable-grafting-materials-in-a-rabbit-calvarial-defect-model
#6
Chih-Long Chen, Han-Wen Tien, Chia-Hui Chuang, Ying-Chieh Chen
Restoring adequate blood supply is essential to the success of bone repair and augmentation procedures in craniofacial surgery. Nevertheless, the manner by which the incorporation of collagen gels (which can potentially induce angiogenesis), particulated deproteinized bovine bone grafts, or a combination of both can accelerate or delay bone regeneration in a clinical setting remains controversial. The objective of this study was to evaluate radiographically and histologically the capacity and functionality of particulated bone grafts and collagen gels on bone ossification and soft tissue formation in a rabbit calvarial defect...
May 2, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29714497/ridge-augmentation-simultaneous-with-immediate-implant-placement-the-subperiosteal-tunneling-technique
#7
Barry P Levin, Stephen J Chu
The efficacy of immediate implant placement has made it an appealing treatment modality in dentistry. Over the past several decades various surgical techniques to minimize the ridge collapse and other adverse changes that occur after tooth extraction have been advocated. This case series proposes a method of soft-tissue augmentation when multiple implants are being immediately placed. The authors describe a subperiosteal tunneling technique that achieves the dual purpose of graft containment/guided bone regeneration and soft-tissue augmentation around maxillary anterior implants...
May 2018: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/29713889/acellular-dermal-matrix-allograft-versus-free-gingival-graft-a-histological-evaluation-and-split-mouth-randomized-clinical-trial
#8
Daniel Romeu Benchimol de Resende, Sebastião Luiz Aguiar Greghi, Aline Franco Siqueira, César Augusto Magalhães Benfatti, Carla Andreotti Damante, Mariana Schutzer Ragghianti Zangrando
OBJECTIVES: This split-mouth controlled randomized clinical trial evaluated clinical and histological results of acellular dermal matrix allograft (ADM) compared to autogenous free gingival graft (FGG) for keratinized tissue augmentation. MATERIAL AND METHODS: Twenty-five patients with the absence or deficiency of keratinized tissue (50 sites) were treated with FGG (control group) and ADM (test group). Clinical parameters included keratinized tissue width (KTW) (primary outcome), soft tissue thickness (TT), recession depth (RD), probing depth (PD), and clinical attachment level (CAL)...
April 30, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29708204/through-the-hololens%C3%A2-looking-glass-augmented-reality-for-extremity-reconstruction-surgery-using-3d-vascular-models-with-perforating-vessels
#9
Philip Pratt, Matthew Ives, Graham Lawton, Jonathan Simmons, Nasko Radev, Liana Spyropoulou, Dimitri Amiras
Precision and planning are key to reconstructive surgery. Augmented reality (AR) can bring the information within preoperative computed tomography angiography (CTA) imaging to life, allowing the surgeon to 'see through' the patient's skin and appreciate the underlying anatomy without making a single incision. This work has demonstrated that AR can assist the accurate identification, dissection and execution of vascular pedunculated flaps during reconstructive surgery. Separate volumes of osseous, vascular, skin, soft tissue structures and relevant vascular perforators were delineated from preoperative CTA scans to generate three-dimensional images using two complementary segmentation software packages...
2018: European radiology experimental
https://www.readbyqxmd.com/read/29695606/augmenting-endogenous-repair-of-soft-tissues-with-nanofibre-scaffolds
#10
REVIEW
Mathew Baldwin, Sarah Snelling, Stephanie Dakin, Andrew Carr
As our ability to engineer nanoscale materials has developed we can now influence endogenous cellular processes with increasing precision. Consequently, the use of biomaterials to induce and guide the repair and regeneration of tissues is a rapidly developing area. This review focuses on soft tissue engineering, it will discuss the types of biomaterial scaffolds available before exploring physical, chemical and biological modifications to synthetic scaffolds. We will consider how these properties, in combination, can provide a precise design process, with the potential to meet the requirements of the injured and diseased soft tissue niche...
April 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29682266/bone-regeneration-in-aesthetic-areas-using-titanium-micromesh-three-case-reports
#11
A Scarano, B Assenza, A DI Cerbo, V Candotto, P Santos DE Oliveira, F Lorusso
Purpose: An adequate bone volume for complete circumferential coverage of the implants is very important for obtaining a long-term success of oral implants. To avoid these problems various membranes and biomaterials were used, but soft tissue pressure could cause a membrane collapse toward the defect. The present work describes a ridge augmentation with titanium mesh shaped by adapting it to a bone defect in aesthetic areas. Materials and methods: Three patients with alveolar crest defects received three implants (Bone System, Milano, Italy) and the defects were filled with bone chips...
October 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29677225/occlusive-titanium-barrier-for-immediate-bone-augmentation-of-severely-resorbed-alveolar-sockets-with-secondary-soft-tissue-healing-a-2-year-case-series
#12
Fabio Perret, Federica Romano, Francesco Ferrarotti, Mario Aimetti
This case series evaluated bone dimensional changes following the application of an occlusive titanium barrier on severely resorbed fresh extraction sockets to achieve bone regeneration. Six extraction sites with buccal bone loss were filled with a xenograft and covered with a titanium plate fixed by two miniscrews and left intentionally exposed. No infection occurred. After 4 months of healing, sufficient hard tissue had formed to allow implant insertion. Mean vertical bone gain was 7.3 ± 2.2 mm at the buccal side and 4...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29671940/a-long-term-prospective-cohort-study-on-immediately-restored-single-tooth-implants-inserted-in-extraction-sockets-and-healed-ridges-cbct-analyses-soft-tissue-alterations-aesthetic-ratings-and-patient-reported-outcomes
#13
Stefanie Raes, Aryan Eghbali, Vivianne Chappuis, Filiep Raes, Hugo De Bruyn, Jan Cosyn
BACKGROUND: Although many studies have been published on single implants, long-term data remain scarce. PURPOSE: To evaluate immediately restored single implants after at least 8 years of follow-up in terms of buccal bone, soft tissue alterations, aesthetic ratings, and patient-reported outcomes. MATERIALS AND METHODS: This prospective cohort study included patients who were consecutively treated with an immediately restored single implant installed in an extraction socket (IIT) or a healed ridge (CIT) in the anterior maxilla...
April 19, 2018: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29658814/combined-spring-and-deltoid-ligament-repair-in-adult-acquired-flatfoot
#14
Caio Nery, André Vitor Kerber C Lemos, Fernando Raduan, Nacime Salomão B Mansur, Daniel Baumfeld
BACKGROUND: Adult-acquired flatfoot deformity (AAFD) is usually due to a combination of mechanical failure of the osteoligamentous complex that maintains the medial longitudinal arch of the foot and attenuation or complete tear of the posterior tibial tendon. Magnetic resonance imaging studies in patients with flatfoot deformities have reported the posterior tibial tendon to be pathologic in up to 100% of patients, the spring ligament in up to 87%, and the deltoid ligament in 33%. Many studies in the literature describe reconstruction of the spring ligament or the deltoid ligament associated with AAFD, but there is no study in which both (spring and deltoid) ligaments are reconstructed at the same time...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29609905/injectable-silk-protein-microparticle-based-fillers-a-novel-material-for-potential-use-in-glottic-insufficiency
#15
Joseph E Brown, Christopher P Gulka, Jodie E M Giordano, Maria P Montero, Anh Hoang, Thomas L Carroll
OBJECTIVES AND HYPOTHESIS: A novel, silk protein-based injectable filler was engineered with the intention of vocal fold augmentation as its eventual intended use. This injectable filler leverages the unique properties of silk protein's superior biocompatibility, mechanical tunability, and slow in vivo degradation to one day better serve the needs of otolaryngologists. This paper intends to demonstrate the mechanical properties of the proposed novel injectable and to evaluate its longevity in animal models...
March 30, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29603808/impact-of-timing-on-soft-tissue-augmentation-during-implant-treatment-a-systematic-review-and-meta-analysis
#16
REVIEW
Cho-Ying Lin, Zhaozhao Chen, Whei-Lin Pan, Hom-Lay Wang
BACKGROUND: To achieve a predictable esthetic and functional outcome, soft tissue augmentation has become popular in implant treatment. OBJECTIVES: The aim of this systematic review and meta-analysis was to assess the influence of different timing for soft tissue augmentation during implant treatment on soft tissue conditions and its stability. MATERIAL AND METHODS: Electronic and manual searches for articles written in English up to September 2017 were performed by two independent reviewers...
March 30, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29568176/interdisciplinary-approach-to-enhance-the-esthetics-of-maxillary-anterior-region-using-soft-and-hard-tissue-ridge-augmentation-in-conjunction-with-a-fixed-partial-prosthesis
#17
Shaleen Khetarpal, Ajay Chouksey, Anand Bele, Rahul Vishnoi
Favorable esthetics is one of the most important treatment outcomes in dentistry, and to achieve this, interdisciplinary approaches are often required. Ridge deficiencies can be corrected for both, soft- and hard-tissue discrepancies. To overcome such defects, not only a variety of prosthetic options are at our disposal but also several periodontal plastic surgical techniques are available as well. Various techniques have been described and revised, over the year to correct ridge defects. For enhancing soft-tissue contours in the anterior region, the subepithelial connective tissue graft is the treatment of choice...
January 2018: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29559494/combined-acl-reconstruction-and-segond-fracture-fixation-fails-to-abolish-anterolateral-rotatory-instability
#18
Levi Reina Fernandes, Herve Ouanezar, Adnan Saithna, Bertrand Sonnery-Cottet
The Segond fracture (SF) is considered pathognomonic of an anterior cruciate ligament (ACL) tear. However, the anatomy of the soft-tissue attachments responsible for the avulsion of SFs has been a cause of controversy. A 31-year-old male patient presented with an injury to his right knee that resulted in ACL tear and a SF. Open SF fixation and arthroscopic ACL reconstruction were performed. The anatomical dissection demonstrated that the avulsion of SFs had occurred because of the tibial attachment of the anterolateral ligament (ALL) with an intact Iliotibial band...
March 20, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29556356/dual-energy-ct-imaging-of-tumor-liposome-delivery-after-gold-nanoparticle-augmented-radiation-therapy
#19
Jeffrey R Ashton, Katherine D Castle, Yi Qi, David G Kirsch, Jennifer L West, Cristian T Badea
Gold nanoparticles (AuNPs) are emerging as promising agents for both cancer therapy and computed tomography (CT) imaging. AuNPs absorb x-rays and subsequently release low-energy, short-range photoelectrons during external beam radiation therapy (RT), increasing the local radiation dose. When AuNPs are near tumor vasculature, the additional radiation dose can lead to increased vascular permeability. This work focuses on understanding how tumor vascular permeability is influenced by AuNP-augmented RT, and how this effect can be used to improve the delivery of nanoparticle chemotherapeutics...
2018: Theranostics
https://www.readbyqxmd.com/read/29556344/exosomal-dmbt1-from-human-urine-derived-stem-cells-facilitates-diabetic-wound-repair-by-promoting-angiogenesis
#20
Chun-Yuan Chen, Shan-Shan Rao, Lu Ren, Xiong-Ke Hu, Yi-Juan Tan, Yin Hu, Juan Luo, Yi-Wei Liu, Hao Yin, Jie Huang, Jia Cao, Zhen-Xing Wang, Zheng-Zhao Liu, Hao-Ming Liu, Si-Yuan Tang, Ran Xu, Hui Xie
Chronic non-healing wounds represent one of the most common complications of diabetes and need advanced treatment strategies. Exosomes are key mediators of cell paracrine action and can be directly utilized as therapeutic agents for tissue repair and regeneration. Here, we explored the effects of exosomes from human urine-derived stem cells (USC-Exos) on diabetic wound healing and the underlying mechanism. Methods: USCs were characterized by flow cytometry and multipotent differentiation potential analyses...
2018: Theranostics
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