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Connective tissue graft

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https://www.readbyqxmd.com/read/28429535/a-cross-circulated-bicephalic-model-of-head-transplantation
#1
Peng-Wei Li, Xin Zhao, Yun-Long Zhao, Bing-Jian Wang, Yang Song, Zi-Long Shen, Hong-Jun Jiang, Hai Jin, Sergio Canavero, Xiao-Ping Ren
AIMS: A successful cephalosomatic anastomosis ("head transplant") requires, among others, the ability to control long-term immune rejection and avoidance of ischemic events during the head transference phase. We developed a bicephalic model of head transplantation to study these aspects. METHODS AND RESULTS: The thoracic aorta and superior vena cava of a donor rat were anastomosed with the carotid artery and extracorporeal veins of a recipient rat by vascular grafts...
April 21, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28420425/acceleration-of-tendon-bone-healing-of-anterior-cruciate-ligament-graft-using-intermittent-negative-pressure-in-rabbits
#2
Zhengming Sun, Xiaoqing Wang, Ming Ling, Wei Wang, Yanhai Chang, Guang Yang, Xianghui Dong, Shixun Wu, Xueyuan Wu, Bo Yang, Ming Chen
BACKGROUND: The purpose of this study was to test effects of negative pressure on tendon-bone healing after reconstruction of anterior cruciate ligament (ACL) in rabbits. METHODS: Hind legs of 24 New Zealand White rabbits were randomly selected as negative pressure group and the contralateral hind legs as control. Reconstruction of the ACL was done. Joints of the negative pressure side were placed with drainage tubes connecting the micro-negative pressure aspirator...
April 18, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28402358/surgical-treatment-of-a-peripheral-ossifying-fibroma-and-reconstruction-with-a-porcine-collagen-matrix-a-case-report
#3
José González-Serrano, Rosa María López-Pintor, Ignacio Sanz-Sánchez, Víctor Manuel Paredes, Elisabeth Casañas, Lorenzo de Arriba, Gonzalo Hernández Vallejo
A 35-year-old woman was referred to the Department of Oral Medicine and Orofacial Surgery after several recurrences of an ossifying fibroma (OF) that affected the free and attached gingiva of the maxillary right central incisor. Surgery was performed with a complete excision of the lesion together with the surrounding healthy tissue up to the bone. To guide the healing of the anterior esthetic framework and the excised tissues, a porcine collagen matrix as an alternative to connective tissue graft was used...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28402353/peri-implant-soft-tissue-stability-after-single-implant-restorations-using-either-guided-bone-regeneration-or-a-connective-tissue-graft-a-randomized-clinical-trial
#4
Chiara D'Elia, Nicola Baldini, Edoardo Ferrari Cagidiaco, Giacomo Nofri, Cecilia Goracci, Massimo de Sanctis
The purpose of the present study was to compare two different surgical procedures, connective tissue graft and guided bone regeneration, when applied in conjunction with implant placement. Probing pocket depth and the recession depth were recorded at the implant site after crown placement (T₁) and at the 1-year follow-up (T₂), while the keratinized tissue height and the buccal mucosa thickness were recorded at three different time points: at the time of implant surgery (T₀), after crown placement, and at the 1-year follow-up...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28396887/comparison-of-enamel-matrix-derivative-emdogain-and-subepithelial-connective-tissue-graft-for-root-coverage-in-patients-with-multiple-gingival-recession-defects-a-randomized-controlled-clinical-study
#5
Angeliki Alexiou, Ioannis Vouros, Georgios Menexes, Antonis Konstantinidis
OBJECTIVE: The purpose of the present study was to compare the clinical efficiency of enamel matrix derivative (EMD) placed under a coronally advanced flap (CAF; test group), to a connective tissue graft (CTG) placed under a CAF (control group), in patients with multiple recession defects. METHOD AND MATERIALS: Twelve patients with multiple Miller's Class I or II gingival recessions in contralateral quadrants of the maxilla were selected. The primary outcome variable was the change in depth of the buccal recession (REC), at 6 months (T6) after surgery...
2017: Quintessence International
https://www.readbyqxmd.com/read/28370489/volumetric-changes-and-peri-implant-health-at-implant-sites-with-or-without-soft-tissue-grafting-in-the-esthetic-zone-a-retrospective-case-control-study-with-a-5-year-follow-up
#6
Stefan P Bienz, Ronald E Jung, Vitor M Sapata, Christoph H F Hämmerle, Jürg Hüsler, Daniel S Thoma
OBJECTIVES: To evaluate the volumetric changes and peri-implant health at implant sites with and without previous soft tissue grafting over a 5-year observation period. MATERIAL AND METHODS: In 18 partially edentulous patients, dental implants were placed in the esthetic zone (15-25) with simultaneous guided bone regeneration, followed by submerged healing. During the healing phase, eight patients (test) received a subepithelial connective tissue graft, whereas 10 patients (control) did not receive any soft tissue augmentation...
March 29, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28368130/a-novel-technique-in-root-coverage-procedures-the-fibrin-assisted-soft-tissue-promotion-concept
#7
Alexandre-Amir Aalam, Alina Krivitky Aalam, Joseph Choukroun
The goal of periodontal plastic surgery is to correct the soft-tissue deformities associated with the loss of attached and keratinized tissue. A variety of flap manipulations related to the use of subepithelial connective tissue grafts are described with great success in the literature but are linked with morbidity and harvesting-quality issues, inclining clinicians and researchers to find alternatives to such techniques. Advanced platelet-rich fibrin, which is widely used in medicine and oral therapy, represents a newer generation of blood-derived growth factors...
April 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28355311/enhancing-root-eminence-and-papilla-contour-using-single-contoured-subepithelial-connective-tissue-autografts-for-recession-coverage
#8
Donald E Lareau, James E Hinrichs, Georgios A Kotsakis
Current techniques using autogenous soft tissue in periodontal plastic surgery have limitations in the number of teeth that can be treated and may result in suboptimal esthetic results. The innovative use of single, contoured grafts reported in this article overcomes the drawbacks associated with these techniques by more efficient use of available donor tissue. Autogenous tissue is used to graft each individual tooth, leaving the interdental areas uncovered. Multiple teeth-in some cases an entire arch-can be treated in one session, providing consistent and predictable reestablishment of the normal scalloped gingival architecture and convex root eminence...
March 29, 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28338039/coronally-advanced-flap-combined-with-connective-tissue-graft-treatment-of-choice-for-root-coverage-following-recession
#9
COMMENT
Ed Madeley, Brett Duane
Data sourcesMedline, The Cochrane Database Trials Register, Embase, supplemented by handsearching of five prominent periodontal journals, references from reviewed papers and contact with experts in the field of mucogingival surgery.Study selectionRandomised controlled trials (RCTs) with or without a split-mouth design, on human patients. RCTs had to compare at least two different surgical interventions on clearly specified recession defects, be over six months in duration and have clearly specified clinical measurements regarding root coverage...
March 2017: Evidence-based Dentistry
https://www.readbyqxmd.com/read/28314534/total-cavopulmonary-connection-with-a-new-bioabsorbable-vascular-graft-first-clinical-experience
#10
Leo A Bockeria, Oleg Svanidze, Alex Kim, Konstantin Shatalov, Vladimir Makarenko, Martijn Cox, Thierry Carrel
OBJECTIVES: To assess safety and clinical performance of a novel bioabsorbable vascular graft in pediatric patients with univentricular cardiac malformation who received surgical correction via an extracardiac cavopulmonary conduit. METHODS: The implanted graft material is designed to attract patient's own cells and proteins, which trigger a cascade of physiological events leading to endogenous tissue restoration. As the graft resorbs progressively after implantation, components of native tissue including collagen, endothelial lining, and capillary blood vessels develop and organize into a natural tissue...
February 7, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28300879/behavior-study-of-the-doped-castor-bean-polymer-rod-with-bioactive-glass-and-hidroxyapatite-in-mice-femur-medullary-canal
#11
Viviani Teixeira Dos Santos, Gilberto Gonçalves Facco, Hudman Cunha Ortiz, Iandara Schettert da Silva
Purpose To evaluate the polymer doped rods behavior with bioactive glass and hydroxyapatite for possible application as a fracture fixing method. Methods Twenty eight Rattus norvegicus Wistar underwent bone defect for access to the femoral medullary canal and distributed into three experimental groups: group A - doped castor bean polymer with bioactive glass; group B - castor bean polymer and; group C - castor bean polymer doped with bioactive glass and hydroxyapatite. After 15 and 60 evaluation days, the femurs were removed and sent for histology and scanning electron microscopy...
February 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28298832/reconstruction-of-interdental-papilla-using-autogenous-bone-and-connective-tissue-grafts
#12
Santhanakrishnan Muthukumar, Pooja Ajit, Shiyamali Sundararajan, Suresh Ranga Rao
Previous studies have reported the management of Class I and II papillary defects, but knowledge on Class III defects, estimated to have a poor periodontal prognosis, remains minimal. In this case report, a Class III papillary defect reconstruction was attempted mainly since the patient reported with difficulty in phonetics. In Stage I, autogenous bone graft from the maxillary tuberosity and subepithelial connective tissue graft was augmented to decrease the distance between the interdental bone crest and contact point, simultaneously achieving a switch in the periodontal biotype...
July 2016: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/28298828/changes-of-the-peri-implant-soft-tissue-thickness-after-grafting-with-a-collagen-matrix
#13
Gregory-George Zafiropoulos, Giorgio Deli, Oliver Hoffmann, Gordon John
BACKGROUND: The aim of this study was to determine the treatment outcome of the use of a porcine monolayer collagen matrix (mCM) to increase soft-tissue volume as a part of implant site development. MATERIALS AND METHODS: Implants were placed in single sites in 27 patients. In the test group, mCM was used for soft-tissue augmentation. No graft was placed in the control group. Soft-tissue thickness (STTh) was measured at the time of surgery (T0) and 6 months postoperatively (T1) at two sites (STTh 1, 1 mm below the gingival margin; STTh 2, 3 mm below the mucogingival margin)...
July 2016: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/28298827/sub-epithelial-connective-tissue-graft-for-root-coverage-in-nonsmokers-and-smokers-a-pilot-comparative-clinical-study
#14
Chini Doraswamy Dwarakanath, Bheemavarapu Divya, Gottumukkala Naga Venkata Satya Sruthima, Gautami Subadra Penmetsa
BACKGROUND: Gingival recession is a common condition and is more prevalent in smokers. It is widely believed that root coverage procedures in smokers result in less desirable outcome compared to nonsmokers', and there are few controlled studies in literature to support this finding. Therefore, the purpose of this study was to evaluate and compare the outcome of root coverage with sub-epithelial connective tissue graft (SCTG) in nonsmokers and smokers. MATERIALS AND METHODS: A sample of twenty subjects, 10 nonsmokers and 10 smokers were selected each with at least 1 Miller's Class I or II recession on a single rooted tooth...
July 2016: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/28289072/down-regulation-of-mir-15a-b-accelerates-fibrotic-remodelling-in-the-type%C3%A2-2-diabetic-human-and-mouse-heart
#15
Shruti Rawal, Pujika Emani Munasinghe, Prashanth Thevkar Nagesh, Jason Kar Sheng Lew, Gregory T Jones, Michael J A Williams, Philip Davis, Dick Bunton, Ivor F Galvin, Patrick Manning, Regis R Lamberts, Rajesh Katare
Aim: Myocardial fibrosis is a well-established cause of increased myocardial stiffness and subsequent diastolic dysfunction in the diabetic heart. The molecular regulators that drive the process of fibrotic events in the diabetic heart are still unknown. We determined the role of the microRNA (miR)-15 family in fibrotic remodelling of the diabetic heart.Methods and results: Right atrial appendage (RAA) and left ventricular (LV) biopsy tissues collected from diabetic and non-diabetic (ND) patients undergoing coronary artery bypass graft surgery showed significant down-regulation of miR-15a and -15b...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28277476/viability-and-biomechanics-of-bare-diced-cartilage-grafts-in-experimental-study
#16
Jun-Lin Liao, Jia Chen, Jia-Qin Xu, Yan Cheng, Hong-Ju Xie, Gu He, Bin He, Ke Cao, Hui-Qing Xie, Jian-Da Zhou
OBJECTIVE: To assess the viability and biomechanics of bare diced cartilage grafts. METHODS: Cartilage samples were collected from 1 ear in 15 rabbits as well as costal cartilage. Each rabbit was inserted bare diced- and single-strip costal-cartilage grafts, respectively, into paraspinal subcutaneous pockets: after euthanasia at 2 months, specimens were weighed, with diced cartilage grafts examined histomorphologically by hematoxylin-eosin staining, masson trichrome staining, and immunohistochemistry...
March 8, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28274882/vacuum-sealing-drainage-as-a-pre-surgical-adjunct-in-the-treatment-of-complex-open-hand-injuries-report-of-17-cases
#17
X-F Niu, J-H Yi, G-Q Zha, J Hu, Y-J Liu, L-B Xiao
BACKGROUND: Few studies have been conducted to explore the use of the vacuum sealing drainage (VSD) technique in complex hand injuries. The aim of this study was to report outcomes in patients with complex hand injuries receiving VSD as a coadjuvant treatment prior to second-stage surgery. METHODS: This case series study retrospectively reviewed the patients who underwent VSD for treatment of hand injuries. Inclusion criteria for the study were: (1) traumatic soft tissue defects of the hand and wrist, accompanied by different degrees of injury and exposure of bone, tendon, or blood vessel; (2) the wound surface of hand and wrist was seriously contaminated and direct wound closure was not possible; and (3) the soft tissues of hand and wrist were seriously lacerated or avulsed, and showed necrosis or acute infection...
May 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28266119/gingival-recession-and-root-caries-in-the-ageing-population-a-critical-evaluation-of-treatments
#18
Peter A Heasman, Mark Ritchie, Abisola Asuni, Erika Gavillet, Janne L Simonsen, Bente Nyvad
AIM: To review evidence for the treatments of gingival recession and root caries in older populations. MATERIALS & METHODS: A systematic approach was adopted to identify reviews and articles to allow us to evaluate the treatments for gingival recession and root caries. Searches were performed in PubMed, Medline and Embase, the Cochrane trials register and bibliographies of European and World Workshops. OBSERVATIONS: Gingival recession: We identified no articles that focussed specifically on older populations...
March 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28261202/stretching-reduces-skin-thickness-and-improves-subcutaneous-tissue-mobility-in-a-murine-model-of-systemic-sclerosis
#19
Ying Xiong, Lisbeth Berrueta, Katia Urso, Sara Olenich, Igla Muskaj, Gary J Badger, Antonios Aliprantis, Robert Lafyatis, Helene M Langevin
OBJECTIVE: Although physical therapy can help preserve mobility in patients with systemic sclerosis (SSc), stretching has not been used systematically as a treatment to prevent or reverse the disease process. We previously showed in rodent models that stretching promotes the resolution of connective tissue inflammation and reduces new collagen formation after injury. Here, we tested the hypothesis that stretching would impact scleroderma development using a mouse sclerodermatous graft-versus-host disease (sclGvHD) model...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28257218/modified-double-papillae-flap-technique-with-subepithelial-connective-tissue-graft-for-root-coverage-in-the-esthetic-zone-case-report
#20
Gustavo Javier Salazar Littuma, Leonardo Bez, Camilo Andres Villabona Lopez, Cesar Augusto Magalhães Benfatti, Ricardo de Souza Magini
Gingival recession can compromise the esthetic appearance, leading to functional problems, hypersensitivity, and root caries. Several techniques have been implicated for root coverage, which includes pedicle grafts, free gingival grafts, connective tissue grafts, and guided-tissue regeneration. The double-papillae flap associated with subepithelial connective tissue is a predictable technique to cover isolated areas with insufficient attached gingiva apical to a recession. This case report demonstrates a surgical alternative to the technique using a sling periosteal suture to stabilize the connective tissue and pedicle flap during the initial phase of healing, increasing the potential of this periodontal procedure for gingival recession coverage...
March 2017: Compendium of Continuing Education in Dentistry
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