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https://www.readbyqxmd.com/read/28335320/cellular-interactions-and-formation-of-an-epithelial-nanocoating-like-barrier-with-mesoporous-silica-nanoparticles
#1
Xuan Li, Ka Yan Pang, Tsz Wing Ng, Ping Chung Leung, Cheng Fei Zhang, Ken Cham-Fai Leung, Lijian Jin
Oral mucosa as the front-line barrier in the mouth is constantly exposed to a complex microenvironment with multitudinous microbes. In this study, the interactions of mesoporous silica nanoparticles (MSNs) with primary human gingival epithelial cells were analyzed for up to 72 h, and their diffusion capacity in the reconstructed human gingival epithelia (RHGE) and porcine ear skin models was further assessed at 24 h. It was found that the synthesized fluorescent mesoporous silica nanoparticles (RITC-NPs) with low cytotoxicity could be uptaken, degraded, and/or excreted by the human gingival epithelial cells...
October 27, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335262/nanomaterials-for-tissue-engineering-in-dentistry
#2
REVIEW
Manila Chieruzzi, Stefano Pagano, Silvia Moretti, Roberto Pinna, Egle Milia, Luigi Torre, Stefano Eramo
The tissue engineering (TE) of dental oral tissue is facing significant changes in clinical treatments in dentistry. TE is based on a stem cell, signaling molecule, and scaffold triad that must be known and calibrated with attention to specific sectors in dentistry. This review article shows a summary of micro- and nanomorphological characteristics of dental tissues, of stem cells available in the oral region, of signaling molecules usable in TE, and of scaffolds available to guide partial or total reconstruction of hard, soft, periodontal, and bone tissues...
July 21, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28333122/differences-in-the-bacteriome-of-smokeless-tobacco-products-with-different-oral-carcinogenicity-compositional-and-predicted-functional-analysis
#3
Nezar Noor Al-Hebshi, Fahd Ali Alharbi, Mohammed Mahri, Tsute Chen
Smokeless tobacco (ST) products vary significantly in their oral carcinogenicity. Much is known about the differences in the chemical, but not the bacterial, constituents of these products. In this study, we explored the composition and function of the bacteriome in ST products from four countries using quantitative polymerase chain reaction (qPCR) and 16S rRNA-based next generation sequencing. The bacterial load (16S rRNA copies/gram) was lowest in Swedish snus (3.4 × 10⁶) and highest in Yemeni shammah (6...
March 23, 2017: Genes
https://www.readbyqxmd.com/read/28330577/-custom-made-implant-for-complex-facial-reconstruction-a-case-of-total-replacement-of-temporo-mandibular-joint-zygomatic-arch-and-malar-bone
#4
D Guillier, V Moris, L-A See, M Girodon, B-L Wajszczak, N Zwetyenga
INTRODUCTION: Total prosthetic replacement of the temporo-mandibular joint (TMJ) has become a common procedure, but it is usually limited to the TMJ itself. We report about one case of complex prosthetic joint reconstruction extending to the neighbouring bony structures. CASE: A 57-year-old patient, operated several times for a cranio-facial fibrous dysplasia, presented with a recurring TMJ ankylosis and a complexe latero-facial bone loss on the right side. We performed a reconstruction procedure including the TMJ, the zygomatic arch and the malar bone by mean of custom made composite prosthesis (chrome-cobalt-molybdenum-titanium and polyethylene)...
February 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28328987/a-novel-recombinant-variant-of-latent-membrane-protein-1-from-epstein-barr-virus-in-argentina-denotes-phylogeographical-association
#5
Magdalena Gantuz, Mario Alejandro Lorenzetti, Paola Andrea Chabay, María Victoria Preciado
AIM: To study LMP1 variants distribution among children with EBV+ malignant and benign conditions as well as in healthy carriers. METHODS: Oral secretions and blood cells from 31 children with IM, and biopsies from 14 EBV+ reactive lymphoid hyperplasia and 33 EBV+ lymphomas were included. LMP1 was amplified by nested PCR and sequenced. Phylogenetic reconstructions were made under Maximun Likelihood, Bayesian and coalescent algorithms. RESULTS: Six clades were defined (China1, China2, Med-, Alaskan, B95...
2017: PloS One
https://www.readbyqxmd.com/read/28326738/-dental-implantation-in-a-patient-with-sj%C3%A3-gren-s-syndrome-a-case-report
#6
Luo Cuifen, Peng Guoguang, Feng Yuanhua, Huang Xingxiang
We reported one case of a patient with Sjögren's syndrome and dental implant. This patient was followed up for more than one year. The patient was diagnosed with Sjögren's syndrome for 5 years and treated with long-term corticosteroid. Four implant-tissue interface hydrophilic implants were placed on 15, 16, 44, and 46 of the mandibular and maxillary areas. After the surgery was completed, the patient was treated with oral antibiotic and "shenggu pills" to prevent infection and glucocorticoid to manage Sjögren's syndrome...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28323814/three-dimensional-evaluation-of-maxillary-sinus-septa-for-implant-placement
#7
Eliza Dragan, Guillaume A Odri, Gabriel Melian, Danisia Haba, Raphael Olszewski
BACKGROUND: The aim of our study was to investigate, in 3 dimensions, the maxillary sinus septa as an alternative site for dental implant placement to avoid sinus lift procedures. MATERIAL AND METHODS: We selected 100 dentate and 100 edentate patients with the presence of a maxillary sinus septum by reviewing a larger cone beam computer tomography (CBCT) database from the Department of Oral and Maxillofacial Surgery at Cliniques Universitaires Saint Luc in Bruxelles, Belgium...
March 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28320044/multiple-concomitant-oral-cavity-cancers-incidence-management-and-outcomes
#8
Huang-Kai Kao, Mohamed Abdelrahman, Yenlin Huang, Chia-Hsuan Tsai, Megias J Barrera, Ngan-Ming Tsang, Adam J Couves, Ming-Huei Cheng, Kai-Ping Chang
BACKGROUND: Little is known about the appropriate treatment and long-term survival of patients with multiple concomitant oral cavity cancers (MOC). The aim of this study was to clarify the clinicopathological features of MOC, to compare the prognosis of MOC patients with that of patients with single oral cavity cancers (SOC), and to describe reconstructive options based on the concept of economy in autologous tissue transfer. METHODS: Data from 603 patients diagnosed with at least one squamous cell carcinoma of the oral cavity who underwent surgery for primary oral cavity cancers between 2006 and 2014 were reviewed retrospectively to identify MOC patients...
March 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28299261/crossed-pectoralis-major-myocutaneous-flap-for-recurrent-oral-cavity-cancers
#9
Mayank Pancholi, Sanjay Sharma, Sanjay M Desai, Deepak Agrawal
BACKGROUND: Oral cavity cancers are fairly common and have propensity to recur locally. Since Pectoralis Major Myocutaneous (PMMC) flap is the most widely used first flap for reconstruction, it is exhausted at the earliest and recurrence poses a formidable challenge for reconstructive surgeon. Present study evaluated the feasibility of contralateral Pectoralis Major Myocutaneous Flap for reconstruction after resection of recurrent tumour. METHODS: This was a study of the patients presenting with recurrent oral cavity cancer after exhausted ipsilateral Pectoralis Major Myocutaneous Flap (PMMC) in whom we used contralateral Pectoralis Major Myocutaneous Flap (Crossed PMMC Flap) for reconstruction between October 2013 to June 2016...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28299251/minimally-invasive-endoscopic-computer-assisted-surgery-technique-and-review
#10
REVIEW
Anand Kumar, Nirma Yadav, Shipra Singh, Neha Chauhan
Endoscopic or minimally invasive surgery popular as keyhole surgery is a medical procedure in which endoscope (a camera) is used, and it has gained broad acceptance with popularity in several surgical specialties and has heightened the standard of care. Oral and maxillofacial surgery is a modern discipline in the field of dentistry in which endoscopy has developed as well as widely used in surgeries and is rapidly gaining importance. The use of different visual as well as standard instruments such as laparoscopic and endoscopic instruments, and high-powered magnification devices, has allowed physicians to decrease the morbidity of many surgical procedures by eliminating the need for a large surgical incision...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28299226/dental-implant-placement-with-simultaneous-anterior-maxillary-reconstruction-with-block-and-particulate-fresh-frozen-allograft-bone-a-case-report-with-24-month-follow-up-data
#11
J S Vieira, E M Brandão-Filho, F R Deliberador, J C Zielak, A F Giovanini, T M Deliberador
Fresh frozen allograft bone is routinely used in orthopedic surgery for the reconstruction of large bone defects, and its use in oral and maxillofacial surgery is increasing. The purpose of this case was to demonstrate the installation of dental implants and the use of fresh frozen bone for reconstruction of anterior maxilla in the same surgery. This case report presents the insertion of dental implants followed immediately by a placement of fresh frozen allograft in block and particle for a reconstruction of atrophic anterior maxillary in the same surgery...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28293493/technique-to-improve-tracheostomy-speaking-valve-tolerance-after-head-and-neck-free-flap-reconstruction
#12
John T Stranix, Keri M Danziger, Veturia L Dumbrava, Ginger Mars, David L Hirsch, Jamie P Levine
Increased upper airway resistance from postoperative changes after major head and neck surgery may cause elevated transtracheal pressures and result in tracheostomy speaking valve intolerance. This may be particularly true among patients with baseline pulmonary disease. We describe a patient recovering from oral cancer resection and flap reconstruction who demonstrated prolonged ventilator dependence and tracheostomy speaking valve intolerance with abnormal tracheal manometry. We attempted to improve speaking valve tolerance through the adaptation of a valve modification intended to reduce transtracheal pressures...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28293492/a-rare-case-of-malignant-transformation-of-oral-lichen-planus-of-the-mandible
#13
Joanne Soo, George Kokosis, Michael Ogilvie, Xiaoyin Sara Jiang, David B Powers, Daniel J Rocke, Detlev Erdmann
Oral lichen planus (OLP) is an immune-mediated mucocutaneous disease associated with an increased risk in oral squamous cell carcinoma (OSCC). Nearly all cases of malignant transformation have been reported in patients >40 years old. We report the case of a 37-year-old woman with a 5-year history of erosive OLP who presented with malignant transformation to OSCC. Delineating the margins of the disease was impossible at presentation given her OLP, and she was initially treated with concurrent chemoradiation therapy...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28293441/free-gingival-graft-to-increase-keratinized-mucosa-after-placing-of-mandibular-fixed-implant-supported-prosthesis
#14
Danny Omar Mendoza Marin, Andressa Rosa Perin Leite, Lélis Gustavo Nícoli, Claudio Marcantonio, Marco Antonio Compagnoni, Elcio Marcantonio
Insufficiently keratinized tissue can be increased surgically by free gingival grafting. The presence or reconstruction of keratinized mucosa around the implant can facilitate restorative procedure and allow the maintenance of an oral hygiene routine without irritation or discomfort to the patient. The aim of this clinical case report is to describe an oral rehabilitation procedure of an edentulous patient with absence of keratinized mucosa in the interforaminal area, using a free gingival graft associated with a mandibular fixed implant-supported prosthesis...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28292996/-a-case-of-resected-advanced-esophageal-cancer-that-responded-to-combination-therapy-comprising-docetaxel-cisplatin-and-5-fluorouracil
#15
Yoshio Kuga, Shosuke Kitamura, Teruo Mouri, Tomohiro Miwata, Hideto Sakimoto, Toshihiro Nishida
We report a case of resected advanced esophagealcancer that responded wellto first-line combination therapy with docetaxel, cisplatin, and 5-fluorouracil(DCF therapy). A 72-year-old man was admitted to our hospital in January 2013 because of dysphagia. On the basis of the computed tomography(CT)and gastroendoscopy findings, he was diagnosed with advanced esophagealcancer with lymph node metastasis. The patient was treated with DCF therapy. After 2 courses of treatment, the primary tumor and lymph node metastasis were reduced on CT...
March 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28291396/mandibular-reconstruction-by-using-a-liquid-nitrogen-treated-autograft-in-a-dog-with-an-oral-tumor
#16
Yasuhiko Okamura, Kazuki Heishima, Tomoki Motegi, Jun Sasaki, Masanobu Goryo, Hideji Nishida, Hiroyuki Tsuchiya, Masaaki Katayama, Yuji Uzuka
A 10 yr old intact female German shepherd dog presented with a large peripheral odontogenic fibroma and malignant melanoma on her lower jaw. The tumor was resected with a unilateral subtotal rostral hemimandibulectomy. After the mandible was removed, it was devitalized intraoperatively by freezing it in liquid nitrogen. It was subsequently reimplanted. New bone tissue formed in the gap between the frozen bone and the host bone. The regenerated bone contained osteocytes, osteoblasts, and blood vessels. The cosmetic appearance of the dog was preserved...
March 14, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28286743/the-use-of-the-buccal-fat-pad-flap-for-oral-reconstruction
#17
REVIEW
Min-Keun Kim, Wonil Han, Seong-Gon Kim
Many congenital and acquired defects occur in the maxillofacial area. The buccal fat pad flap (BFP) is a simple and reliable flap for the treatment of many of these defects because of its rich blood supply and location, which is close to the location of various intraoral defects. In this article, we have reviewed BFP and the associated anatomical background, surgical techniques, and clinical applications. The surgical procedure is simple and has shown a high success rate in various clinical applications (approximately 90%), including the closure of oroantral fistula, correction of congenital defect, treatment of jaw bone necrosis, and reconstruction of tumor defects...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28286397/perforator-peroneal-artery-flap-for-tongue-reconstruction
#18
Shubhra Chauhan, Sachin Chavre, Naveen Hedne Chandrashekar, Naveen B S
INTRODUCTION: Reconstruction has evolved long way from primary closure to flaps. As time evolved, better understanding of vascularity of flap has led to the development of innovative reconstructive techniques. These flaps can be raised from various parts of the body for reconstruction and have shown least donor site morbidity. We use one such peroneal artery perforator flap for tongue reconstruction with advantage of thin pliable flap, minimal donor site morbidity and hidden scar. MATERIALS AND METHODS: Our patient 57yrs old lady underwent wide local excision with selective neck dissection...
March 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28286394/a-protocol-for-management-of-the-hairs-problem-in-oral-cavity-reconstruction-by-submental-flap
#19
Amin Rahpeyma, Saeedeh Khajehahmadi
BACKGROUND: Submental flap is a useful aid in maxillofacial reconstruction. For intraoral usage the hairs in male patients will create some problems. MATERIALS AND METHODS: In a retrospective study, patients in whom submental flap had been used for reconstruction of orofacial region between 2007 and 2013, in the Mashhad University, Ghaem Hospital, were included. The ways in which the problem of hairs was solved in male patients were evaluated. RESULTS: There were 42 patients in whom submental flap was used for orofacial reconstruction...
March 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28286073/intermediate-term-outcomes-and-complications-of-long-segment-urethroplasty-with-lingual-mucosa-grafts
#20
Yue-Min Xu, Chao Li, Hong Xie, Ying-Long Sa, Qiang Fu, Deng-Long Wu, Jiong Zhang, Chao Feng, Chong-Rui Jin, Lu-Jie Song, Hong-Bin Li, Ying Liu
PURPOSE: We evaluated the outcomes and donor site complications of male patients with complex urethral strictures (CUS) that underwent urethroplasty by using with long-strip oral mucosal grafts (OMGs). The study analyzed whether lingual mucosa graft (LMG) is a good substitute for repairing long segment urethral strictures. MATERIALS AND METHODS: This was a retrospective study of 81 male patients with CUS that underwent OMGs urethroplasty. Patients with long segment anterior urethral strictures(≥8 cm)that were considered for long-strip LMG urethroplasty were included in the study...
March 9, 2017: Journal of Urology
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