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Augmented soft tissue

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https://www.readbyqxmd.com/read/28208057/vertical-alveolar-distraction-osteogenesis-of-the-atrophic-posterior-mandible-before-dental-implant-insertion
#1
Adi Rachmiel, Dekel Shilo, Dror Aizenbud, Omri Emodi
PURPOSE: Augmentation of deficient mandibular posterior alveolar ridges poses a great challenge because of extensive bone deficiency and the presence of the inferior alveolar nerve. This study sets its focus on vertical alveolar distraction osteogenesis (ADO) at the posterior mandible before dental implant placement. MATERIALS AND METHODS: The study included 21 sites in 18 patients with severe mandibular posterior alveolar ridge deficiency. A trapezoidal osteotomy was performed, and an extraosseous alveolar distraction device was fixed and activated after a 4-day latency period at a rate of 0...
January 21, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28208056/oral-rehabilitation-of-a-patient-with-ectodermal-dysplasia-treated-with-fresh-frozen-bone-allografts-and-computer-guided-implant-placement-a-clinical-case-report
#2
Carlo Maiorana, Pier Paolo Poli, Carlo Poggio, Paola Barbieri, Mario Beretta
Ectodermal dysplasia (ED) is an inherited disorder characterized by abnormality of ectodermally derived structures. A recurrent oral finding is oligodontia, which in turn leads to a severely hypotrophic alveolar process with typical knife-edge morphology and adverse ridge contours. This unfavorable anatomy can seriously hamper proper implant placement. Fresh-frozen bone (FFB) allografts recently have been proposed to augment the residual bone volume for implant placement purposes; however, scientific evidence concerning the use of FFB to treat ED patients is absent...
January 20, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28197297/reconstruction-of-an-anterior-cervical-necrotizing-fasciitis-defect-using-a-biodegradable-polyurethane-dermal-substitute
#3
Marcus Jd Wagstaff, Yugesh Caplash, John E Greenwood
Introduction: Although we have previously described the use of a novel polyurethane biodegradable dermal substitute in the reconstruction of 20 free flap donor sites, and extensive cutaneous defects, including a large area of exposed calvarium secondary to burn injury, our experience with this material now extends to 35 free flap donor site reconstructions and 13 major or complex burns. Methods: The polyurethane material (NovoSorb BTM; PolyNovo Biomaterials Pty Ltd, Port Melbourne, Victoria, Australia) was recently employed in another complex wound scenario, implanted into a large anterior cervical cutaneous and soft-tissue defect remaining after serial radical debridement for necrotizing fasciitis...
2017: Eplasty
https://www.readbyqxmd.com/read/28196170/novel-approach-to-managing-malsequenced-and-malpositioned-immediately-placed-implants-in-the-esthetic-zone
#4
Jacob K Stern, Christopher M Bingham, Brock J Pumphrey, Gerard J Chiche, Eduardo Britton
Esthetic implant therapy can be challenging in the anterior maxilla, and meticulous treatment is often required to deliver optimal esthetics. Close collaboration between surgical and prosthetic team members using the novel approach of prosthetic crown lengthening helped camouflage a shallow implant platform location, providing the proper gingival frame for esthetic restorations. This case report presents an interdisciplinary approach that included ridge augmentation, second-stage crown lengthening, and prosthetic soft tissue manipulation to address an implant placed too shallow in the alveolus of an extraction socket...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28196155/subperiosteal-minimally-invasive-aesthetic-ridge-augmentation-technique-smart-a-new-standard-for-bone-reconstruction-of-the-jaws
#5
Ernesto A Lee
Traditional guided bone regeneration techniques include flap mobilization and placement of a bone graft, often with the use of space-maintaining devices and cell-occlusive membranes. This approach is associated with frequent complications that negatively affect the outcome of the augmentation and the peri-implant soft tissue esthetics. Although current tunneling techniques have focused on periodontal soft tissue applications, earlier publications described their use for horizontal augmentation of mandibular posterior edentulous ridges in full-denture patients...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28194290/latissimus-dorsi-tendon-transfer-with-graftjacket%C3%A2-augmentation-to-increase-tendon-length-for-an-irreparable-rotator-cuff-tear
#6
John G Skedros, Tanner R Henrie
Massive irreparable rotator cuff tears can be reconstructed with latissimus dorsi tendon transfers (LDTT). Although uncommon, the natural length of the latissimus dorsi tendon (LDT) could be insufficient for transfer even after adequate soft tissue releases. Descriptions of cases where grafts were needed to lengthen the LDT are therefore rare. We located only two reports of the use of an acellular dermal matrix to increase effective tendon length in tendon transfers about the shoulder: (1) GraftJacket patch for a pectoralis major tendon reconstruction and (2) ArthroFlex® patch for LDTT...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28181688/dental-implants-and-bone-augmentation-in-hiv-infected-patients-under-haart-case-report-and-review-of-the-literature
#7
Fábio Vidal, Rafael Vidal, Jeter Bochnia, Rodrigo Carvalho de Souza, Lucio Souza Gonçalves
The present study reviewed the literature regarding dental implants in HIV-infected patients and reports the long-term follow-up of three clinical cases of patients under HAART that received bone augmentation and dental implants. The first case presents a young patient with a large defect in the mandible, as a consequence of a longitudinal fracture, that was treated with guided bone regeneration (GBR) previously to implant placement. The second case reported is middle-aged man with a fractured upper lateral incisor treated with immediate placement and simultaneous GBR to repair the dehiscence due to the buccal bone resorption...
February 9, 2017: Special Care in Dentistry
https://www.readbyqxmd.com/read/28175965/effects-of-platelet-rich-plasma-on-tissue-expansion-in-rabbits
#8
Wang Jinming, Liu Caiyue, Wu Baojin, Liu Antang, Zhang Yingfan, Wang Hui, Zhu Lie, Jiang Hua
BACKGROUND: Tissue expansion has been widely applied in clinic practice. However, the expanded skin is always insufficient for clinical use and how to promote tissue expansion is still a challenge. Platelet-rich plasma (PRP) contains multiple tissue growth factors and has been widely utilized in hard- and soft-tissue augmentation. However, its feasibility to promote tissue expansion has not been explored. The purpose of this study was to evaluate the possible effect of PRP in tissue expansion...
February 7, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28165664/hydrogel-derived-from-decellularized-porcine-adipose-tissue-as-a-promising-biomaterial-for-soft-tissue-augmentation
#9
Qiu-Wen Tan, Yi Zhang, Jing-Cong Luo, Di Zhang, Bin-Jun Xiong, Ji-Qiao Yang, Hui-Qi Xie, Qing Lv
Decellularized extracellular matrix (ECM) scaffolds from human adipose tissue, characterized by impressive adipogenic induction ability, are promising for soft tissue augmentation. However, scaffolds from autologous human adipose tissue are limited by the availability of tissue resources and the time necessary for scaffold fabrication. The objective of the current study was to investigate the adipogenic properties of hydrogels of decellularized porcine adipose tissue (HDPA). HDPA induced the adipogenic differentiation of human adipose-derived stem cells (ADSCs) in vitro, with significantly increased expression of adipogenic genes...
February 6, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28130561/breast-durometer-mammometer-a-novel-device-for-measuring-soft-tissue-firmness-and-its-application-in-cosmetic-breast-surgery
#10
Tim Brown, Stephen Brown, Tracey Murphy
The measurement of soft-tissue firmness has many potential applications in medical practice. This study reports a user-friendly, novel device that is capable of measuring changes in soft-tissue firmness in a reproducible manner. The study reports the development of the equipment and how it has been applied to breast implant surgery. The device was tested for both intra- and inter-observer variability on an in vitro model, using a breast implant. Once reproducibility was confirmed, breast firmness was measured on a series of patients who underwent sub-fascial breast augmentation (n = 50) to examine how it varied post-operatively...
January 27, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28128224/pyrintegrin-induces-soft-tissue-formation-by-transplanted-or-endogenous-cells
#11
Bhranti S Shah, Mo Chen, Takahiro Suzuki, Mildred Embree, Kimi Kong, Chang H Lee, Ling He, Lusai Xiang, Jeffrey A Ahn, Sheng Ding, Jeremy J Mao
Focal adipose deficiency, such as lipoatrophy, lumpectomy or facial trauma, is a formidable challenge in reconstructive medicine, and yet scarcely investigated in experimental studies. Here, we report that Pyrintegrin (Ptn), a 2,4-disubstituted pyrimidine known to promote embryonic stem cells survival, is robustly adipogenic and induces postnatal adipose tissue formation in vivo of transplanted adipose stem/progenitor cells (ASCs) and recruited endogenous cells. In vitro, Ptn stimulated human adipose tissue derived ASCs to differentiate into lipid-laden adipocytes by upregulating peroxisome proliferator-activated receptor (PPARγ) and CCAAT/enhancer-binding protein-α (C/EBPα), with differentiated cells increasingly secreting adiponectin, leptin, glycerol and total triglycerides...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28114215/extra-oral-excision-of-a-buccal-fat-pad-lipoma
#12
Guilherme Dos Santos Trento, Diego José Stringhini, Nelson Luis Barbosa Rebellato, Rafaela Scariot
Lipomas and its variants are common soft tissue tumors, and however occur infrequently in the oral and maxillofacial region. Their incidence in the oral cavity is low among all oral lesions. Oral lipoma is yellowish and soft to palpation, and histologically can be mistaken by other lipoma variants. The aim of this study is to report a case of a lipoma located at the buccal fat pad which was removed through an extra-oral access. A 43-year-old male is presenting an augmentation in the right buccal region, being a soft consistency mobile lesion with 1...
January 20, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28107560/randomized-controlled-clinical-study-comparing-a-volume-stable-collagen-matrix-to-autogenous-connective-tissue-grafts-for-soft-tissue-augmentation-at-implant-sites-linear-volumetric-soft-tissue-changes-up-to-3-months
#13
Marco Zeltner, Ronald E Jung, Christoph H F Hämmerle, Jürg Hüsler, Daniel S Thoma
AIM: to test whether or not the use of a volume stable collagen matrix (VCMX) results in soft tissue volume increase at implant sites non-inferior to an autogenous subepithelial connective tissue graft (SCTG). METHODS: In 20 patients soft tissue augmentation at implant sites was performed using VCMX or SCTG. Casts obtained prior to augmentation (BL), at 30 (FU-30) and 90 days (FU-90) were digitized and transferred to stereolithography (STL) files. BL, FU-30 and FU-90 STL files were superimposed and linear volumetric changes evaluated in crestal and buccal regions of interest (ROI)...
January 20, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28106629/heat-shock-protein-70-overexpression-in-adipose-derived-stem-cells-enhances-fat-graft-survival
#14
Hao Feng, Lihong Qiu, Teng Zhang, Houyou Yu, Xianjie Ma, Yingjun Su, Hui Zheng, Yong Wang, Chenggang Yi
BACKGROUND: Autologous fat grafting is a prevalent technique used for soft-tissue augmentation; however, the poor survival rate of the grafted tissue remains a drawback of this method. Although adipose-derived stem cells (ASCs) are an attractive candidate for enhancing graft retention, the poor posttransplantation viability of these cells limits their application. Here we investigated whether overexpression of the antiapoptotic protein heat-shock protein 70 (Hsp70) could enhance ASCs' therapeutic potential for fat transplant survival...
January 19, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28094850/discriminating-solitary-cysts-from-soft-tissue-lesions-in-mammography-using-a-pretrained-deep-convolutional-neural-network
#15
Thijs Kooi, Bram van Ginneken, Nico Karssemeijer, Ard den Heeten
PURPOSE: It is estimated that 7% of women in the western world will develop palpable breast cysts in their lifetime. Even though cysts have been correlated with risk of developing breast cancer, many of them are benign and do not require follow-up. We develop a method to discriminate benign solitary cysts from malignant masses in digital mammography. We think a system like this can have merit in the clinic as a decision aid or complementary to specialised modalities. METHODS: We employ a deep Convolutional Neural Network (CNN) to classify cyst and mass patches...
January 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28035307/long-standing-chin-augmenting-costochondral-graft-creating-a-diagnostic-challenge-a-case-report-and-literature-review
#16
Fatma Fayez Badr, Mark Mintline, Axel Ruprecht, Donald Cohen, Barton R Blumberg, Madhu K Nair
To our knowledge, the imaging features of costochondral grafts (CCGs) on cone-beam computed tomography (CBCT) have not been documented in the literature. We present the case of a CCG in the facial soft tissue to the anterior mandible, with changes mimicking a cartilaginous neoplasm. This is the first report to describe the CBCT imaging features of a long-standing graft in the anterior mandible. Implants or grafts may be incidental findings on radiographic images made for unrelated purposes. Although most are well-defined and radiographically homogeneous, being of relatively inert non-biological material, immune reactions to some grafts may stimulate alterations in the appearance of surrounding tissues...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28032168/the-efficacy-and-safety-of-ha-idf-plus-with-lidocaine-versus-ha-idf-without-lidocaine-in-nasolabial-folds-injection-a-randomized-multicenter-double-blind-split-face-study
#17
Jong-Hun Lee, Seok-Hwan Kim, Eun-Soo Park
BACKGROUND: Injection-related pain of dermal fillers is a consistent and bothersome problem for patients undergoing soft tissue augmentation. Reducing the pain could improve overall patient satisfaction. OBJECTIVE: The purpose of this study was to compare the pain relief, efficacy, and safety of HA IDF plus containing lidocaine with HA IDF without lidocaine during correction of nasolabial folds (NLFs). METHODS: Sixty-two subjects were enrolled in a randomized, multicenter, double-blind, split-face study of HA IDF plus and HA IDF for NLF correction...
December 28, 2016: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28032167/facing-the-worst-risk-confronting-the-dorsal-nasal-artery-implication-for-non-surgical-procedures-of-nasal-augmentation
#18
Tanvaa Tansatit, Prawit Apinuntrum, Thavorn Phetudom
BACKGROUND: The nose is a dangerous site for filler injection. This study investigated the anatomy of the dorsal nasal artery at the upper part of the nose to clarify how ocular complications occur. METHODS: Dissections were performed in 50 noses of the embalmed cadavers. Either the soft embalming or formaldehyde embalming processes were used. RESULTS: The dorsal nasal artery is not a constant artery. The artery traveled in the subcutaneous tissue layer of the nasal dorsum on the transverse nasalis muscle and its midline nasal aponeurosis which connected the muscles on both sides...
December 28, 2016: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28005400/does-allograft-augmentation-of-small-diameter-hamstring-autograft-acl-grafts-reduce-the-incidence-of-graft-retear
#19
Andrew T Pennock, Brian Ho, Kristina Parvanta, Eric W Edmonds, Henry G Chambers, Joanna H Roocroft, Tracey P Bastrom
BACKGROUND: Small-diameter hamstring tendons are frequently encountered during anterior cruciate ligament (ACL) reconstructions in patients with short stature or those who are skeletally immature. The role of augmenting these small-diameter autografts with allograft is unclear. PURPOSE: To assess clinical outcomes and failure rates in adolescent patients with small hamstring tendon autografts (<7 mm) that were either augmented with soft tissue allograft or accepted "as is" and not augmented...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28000282/coverage-of-mucosal-recessions-at-dental-implants
#20
REVIEW
Anton Sculean, Vivianne Chappuis, Raluca Cosgarea
Facial peri-implant mucosal recessions represent an increasing complication in implant dentistry and may negatively affect the esthetic outcome and patient satisfaction. The aim of the present paper is to provide a review on the potential causes of facial peri-implant mucosal recessions and to provide a rationale for treatment along with possible treatment options. The available data indicate that soft tissue augmentation around dental implants is possible, but at present there is no evidence demonstrating that the augmented soft tissues are able to influence the peri-implant bone levels (e...
February 2017: Periodontology 2000
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