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Oral dysplasia

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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
#1
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/28319210/oculo-dento-digital-dysplasia-oddd-due-to-a-gja1-mutation-report-of-a-case-with-emphasis-on-dental-manifestations
#2
Christina Hadjichristou, Violetta Christophidou-Anastasiadou, Athina Bakopoulou, George A Tanteles, Maria A Loizidou, Kyriacos Kyriacou, Andreas Hadjisavvas, Konstantinos Michalakis, Argyris Pissiotis, Petros Koidis
Oculo-dento-digital dysplasia (ODDD) is a congenital disorder manifesting with multiple phenotypic abnormalities involving the face, eyes, teeth, and limbs in addition to neurologic symptomatology. This report aims to present a female patient with ODDD who was referred due to extensive oral restorative needs. The presence of hypoplastic enamel triggered further evaluation. Characteristic facies with hypoplastic alae nasi and syndactyly offered greater insight into the phenotype of the syndrome. Clinical suspicion was confirmed by genetic sequencing revealing heterozygous mutation in GJA1...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28316764/the-association-between-oral-hygiene-and-gastric-pathology-in-patients-with-dyspepsia-a-cross-sectional-study-in-southeast-iran
#3
Leili Zahedi, Elham Jafari, Molook Torabi Parizi, Sara Shafieipour, Mehdi Hayat Bakhsh Abbasi, Sodaif Darvish Moghadam, Mohammad Javad Zahedi
BACKGROUND Many studies have reported an association between periodontal infections and some systemic diseases such as respiratory and cardiovascular diseases. Some studies found a direct association between chronic gastritis caused by Helicobacter pylori (HP) infection and poor periodontal health. METHODS In a cross-sectional study from November 2014 to December 2015 in Kerman, the largest province in southeast Iran, patients with dyspepsia who were candidate for diagnostic upper gastrointestinal (GI) endoscopy were included in our study...
January 2017: Middle East Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28303350/immunohistochemical-evaluation-of-klotho-and-dna-methyltransferase-3a-in-oral-squamous-cell-carcinomas
#4
Bhoj Raj Adhikari, Osamu Uehara, Hirofumi Matsuoka, Rie Takai, Fumiya Harada, Masafumi Utsunomiya, Takatoshi Chujo, Tetsuro Morikawa, Mamata Shakya, Koki Yoshida, Jun Sato, Toshiya Arakawa, Michiko Nishimura, Hiroki Nagayasu, Itsuo Chiba, Yoshihiro Abiko
Carcinoma follows a course of multiple changes that are affected by several important factors, with epigenetic silencing of the promoter gene being one of them. A series of studies have suggested that epigenetic changes in the anti-aging gene Klotho may be one of the emerging areas of concern in the study of carcinogenesis. We hypothesized that epigenetic silencing of Klotho due to hypermethylation of DNMT3a may be one of the causes of carcinoma in the oral and maxillofacial region. In this study, we analyzed the immunohistochemical expressions of Klotho and DNMT3a in tissues obtained from oral dysplasia and oral squamous cell carcinoma...
March 16, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28299253/lugol-s-iodine-identifies-dysplastic-tissue-in-precancerous-lesions-a-clinical-trial
#5
Shereen Fatima, Rajarshi Basu, Neelakamal H Hallur
INTRODUCTION: Intraepithelial dysplasia, or "invisible" precancerous lesions, provides a challenge for visualization to the surgical team. The prognostic relevance of dysplasia and carcinoma in situ at surgical margins is well documented. MATERIALS AND METHODS: We evaluated the use of Lugol's iodine in visualizing the surgical margins of dysplastic tissue by an observational study of 100 patients having oral precancerous lesions between June 2013 and March 2016...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28292622/langerhans-cell-counts-in-oral-epithelial-dysplasia-and-their-correlation-to-clinicopathological-parameters
#6
Yi-Ping Wang, I-Chang Chen, Yu-Hsueh Wu, Yang-Che Wu, Hsin-Ming Chen, Julia Yu-Fong Chang
BACKGROUND/PURPOSE: Langerhans cells (LCs) are antigen presenting cells. This study assessed the LC counts in oral epithelial dysplasia (OED) and their correlation to clinicopathological parameters. METHODS: This study examined the LC counts in the epithelia and subepithelial connective tissues of 58 patients with OED (21 mild, 18 moderate, and 19 severe OED lesions) and 10 specimens of normal oral mucosa (NOM) by anti-S-100 protein immunostaining. RESULTS: We found that the mean LC counts in the epithelia or subepithelial connective tissues increased significantly from NOM samples through mild and moderate OED to severe OED samples...
March 11, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28274041/histomorphometric-analysis-of-angiogenesis-using-cd31-immunomarker-and-mast-cell-density-in-oral-premalignant-and-malignant-lesions-a-pilot-study
#7
M Jyothsna, M Rammanohar, Kiran Kumar
INTRODUCTION: Mast cells have been implicated in promoting angiogenesis in malignant tumors of lung, oesophagus and breast, but there are few studies on Oral Squamous Cell Carcinomas (OSCC). Most oral squamous cell carcinomas arise from pre-existing precancerous lesions exhibiting epithelial dysplasia. AIM: The present pilot study attempts to compare Mast Cell Density (MCD), Microvessel Density (MVD), Microvessel Area (MVA) histomorphometrically between normal buccal mucosa, severe epithelial dysplasia and OSCC and to correlate the role of mast cells and angiogenesis in tumor progression...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28253185/oral-health-considerations-in-a-patient-with-oligosymptomatic-ectrodactyly-ectodermal-dysplasia-cleft-syndrome
#8
Gaurav Sharma, Archna Nagpal
Ectrodactyly-ectodermal dysplasia-cleft (EEC) syndrome-a complex, pleiotropic disorder resulting in multiple congenital anomalies-has an unpredictable clinical expression and is typically manifested as an autosomal-dominant trait. This article presents a rare case of oligosymptomatic EEC syndrome in a 19-year-old man who exhibited atypical dental findings but no cleft lip or palate. This article is intended to create awareness about this rare syndrome and highlight the role of oral healthcare specialists in improving the quality of life for patients with EEC...
March 2017: General Dentistry
https://www.readbyqxmd.com/read/28251593/frontonasal-dysplasia-oral-features-restorative-and-orthodontic-dental-treatment-in-a-child
#9
R A Valério, C Scatena, F R R Santos, F L Romano, A M Queiroz, F W G Paula-Silva
BACKGROUND: Frontonasal dysplasia is a complex rare malformation, characterised by abnormalities involving the central portion of the face, especially the eyes, nose and forehead. It can manifest independently or associated with other abnormalities as part of some syndromes. CASE REPORT: The purpose of this case report was to describe a 5-year-old patient, diagnosed with frontonasal dysplasia. Among the abnormalities characterised with this disorder were ocular hypertelorism, broad nose tip with median notch, median facial cleft, bifid anterior skull, low set hairline, Poland's syndactyly and ankyloglossia...
March 1, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28236118/expression-of-vista-correlated-with-immunosuppression-and-synergized-with-cd8-to-predict-survival-in-human-oral-squamous-cell-carcinoma
#10
Lei Wu, Wei-Wei Deng, Cong-Fa Huang, Lin-Lin Bu, Guang-Tao Yu, Liang Mao, Wen-Feng Zhang, Bing Liu, Zhi-Jun Sun
V-domain Ig suppressor of T cell activation (VISTA), a novel immune checkpoint regulatory molecule, suppresses T cell mediated immune responses. The aim of the present study was to profile the immunological expression, clinical significance and correlation of VISTA in human oral squamous cell carcinoma (OSCC). Human tissue microarrays, containing 165 primary OSCCs, 48 oral epithelial dysplasias and 43 normal oral mucosae, were applied to investigate the expression levels of VISTA, CD8, cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), programmed death ligand 1 (PD-L1), PI3Kα p110, IL13Rα2, phospho-STAT3 at tyrosine 705 (p-STAT3) and myeloid-derived suppressor cell (MDSC) markers (CD11b and CD33) by immunohistochemistry and digital pathology analysis...
February 24, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28217374/plecanatide-mediated-activation-of-guanylate-cyclase-c-suppresses-inflammation-induced-colorectal-carcinogenesis-in-apc-min-fccc-mice
#11
Wen-Chi L Chang, Shet Masih, Anusha Thadi, Viren Patwa, Apoorva Joshi, Harry S Cooper, Vaseem A Palejwala, Margie L Clapper, Kunwar Shailubhai
AIM: To evaluate the effect of orally administered plecanatide on colorectal dysplasia in Apc(+/Min-FCCC) mice with dextran sodium sulfate (DSS)-induced inflammation. METHODS: Inflammation driven colorectal carcinogenesis was induced in Apc(+/Min-FCCC) mice by administering DSS in their drinking water. Mice were fed a diet supplemented with plecanatide (0-20 ppm) and its effect on the multiplicity of histopathologically confirmed polypoid, flat and indeterminate dysplasia was evaluated...
February 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
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
#12
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/28198978/high-prevalence-of-human-papillomavirus-hpv-in-oral-mucosal-lesions-of-patients-at-the-ambulatory-of-oral-diagnosis-of-the-federal-university-of-sergipe-northeastern-brazil
#13
Mariana Goveia Melo Ribeiro, Larissa Doddi Marcolino, Bruna Ribeiro de Andrade Ramos, Elaine Alves Miranda, Cleverson Luciano Trento, Sona Jain, Ricardo Queiroz Gurgel, Márcia Guimarães da Silva, Silvio Santana Dolabella
Objective: The aim of this study was to evaluate the frequency of HPV infection and its genotypes in patients with oral lesions at the Ambulatory of Oral Diagnosis of the Federal University of Sergipe, Brazil. Material and Methods: We conducted a molecular study with 21 patients (15 females) aged from two to 83 years with clinically detectable oral lesions. Samples were collected through exfoliation of lesions and HPV-DNA was identified using MY09/11 and GP5+/6+ primers...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28194495/florid-cemento-osseous-dysplasia-review-of-an-uncommon-fibro-osseous-lesion-of-the-jaw-with-important-clinical-implications
#14
REVIEW
Sarah Fenerty, Wei Shaw, Rahul Verma, Ali B Syed, Riya Kuklani, Jie Yang, Sayed Ali
Florid cemento-osseous dysplasia (FCOD) is a rare, benign, multifocal fibro-osseous dysplastic process affecting tooth-bearing areas of the jaw, characterized by replacement of normal trabecular bone with osseous tissue and dense acellular cementum in a fibrous stroma. It is one clinicopathologic variant in a spectrum of related non-neoplastic fibro-osseous lesions known as cemento-osseous dysplasias (CODs), thought to arise from elements of the periodontal ligament. Diagnosis primarily relies upon radiographic and clinical findings; unnecessary biopsy should be avoided, as inoculation with oral pathogens may precipitate chronic infection in these hypovascular lesions...
February 13, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28160592/letter-to-the-editor-development-of-proliferative-verrucous-leukoplakia-pvl-in-oral-lichen-planus-is-it-not-a-clinical-spectrum-of-pvl
#15
D-T Fernandes, A-R Santos-Silva, P-A Vargas, M-A Lopes
No abstract text is available yet for this article.
March 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28146434/selective-extracellular-vesicle-exclusion-of-mir-142-3p-by-oral-cancer-cells-promotes-both-internal-and-extracellular-malignant-phenotypes
#16
Christopher Td Dickman, James Lawson, James Jabalee, Sara A MacLellan, Nancy E LePard, Kevin L Bennewith, Cathie Garnis
Packaging of small molecular factors, including miRNAs, into small extracellular vesicles (SEVs) may contribute to malignant phenotypes and facilitate communication between cancer cells and tumor stroma. The process by which some miRNAs are enclosed in SEVs is selective rather than indiscriminate, with selection in part governed by specific miRNA sequences. Herein, we describe the selective packaging and removal via SEVs of four miRNAs (miR-142-3p, miR-150-5p, miR-451a, and miR-223-3p) in a panel of oral dysplasia and oral squamous cell carcinoma cell lines...
January 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28138922/tumor-preventive-efficacy-of-emodin-in-7-12-dimethylbenz-a-anthracene-induced-oral-carcinogenesis-a-histopathological-and-biochemical-approach
#17
Asokan Manimaran, Shanmugam Manoharan
The aim of the present study is to focus the chemopreventive potential of Emodin during 7,12-dimethylbenz[a]anthracene (DMBA) induced hamster buccal pouch carcinogenesis. Tumors were developed in the buccal pouches of golden Syrian hamsters by painting with 0.5% DMBA thrice a week for 14 weeks. The status of lipid peroxidation, antioxidants and detoxification agents were utilized as biochemical endpoints and the expression pattern of apoptotic proteins was employed as molecular endpoints in addition to the histopathological studies, to substantiate the anticancer potential of Emodin...
January 31, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28116435/-expression-of-cytokeratin-19-in-the-development-and-progression-of-oral-squamous-cell-carcinoma
#18
Dan Tan, Chun-Hui Li, Min-Hai Nie
PURPOSE: To investigate the expression of cytokeratin 19 (CK19) in various stages of oral squamous cell carcinoma (OSCC), and to explore the relation between CK19 and OSCC. METHODS: Forty-nine specimens including normal oral mucosa, epithelial hyperplasia, epithelial dysplasia, and oral squamous carcinoma were investigated. The expression of CK19 was detected by immunohistochemistry and Western blot. The serum of OSCC patients and healthy people was collected and CYFRA21-1 level was determined by ELISA...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28115253/gold-nanorods-reflectance-discriminate-benign-from-malignant-oral-lesions
#19
Abraham Hirshberg, Irit Allon, Ilya Novikov, Rinat Ankri, Ariel Ashkenazy, Dror Fixler
Nanoparticle-based contrast agents have been used as an imaging tool for selectively detecting cancerous processes. We aimed to evaluate the detection sensitivity of reflection measurements of gold nanorods (GNRs) bio-conjugated to anti-epidermal growth factor receptor (GNRs-EGFR) monoclonal antibodies in discriminating benign from premalignant and malignant human oral lesions. Tissue sections incubated with GNRs-EGFR and the reflectance spectrum was measured using hyperspectral microscopy. Reflectance intensity increased with the progression of the disease, lowest in the control group and increasing as the dysplastic changes increase (p<0...
January 20, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28110942/individualized-five-year-risk-assessment-for-oral-premalignant-lesion-progression-to-cancer
#20
Jason T K Hwang, Ying R Gu, Mi Shen, Ranju Ralhan, Paul G Walfish, Kenneth P H Pritzker, David Mock
OBJECTIVE: The standard of care for premalignant lesion risk assessment is dysplasia grading by histopathology. With significant overlap between dysplasia grades and high inter- and intraobserver variations, histopathology dysplasia grading alone is not a useful prognostic tool. Our aim is to investigate whether a method for quantitatively assessing S100A7, a prognostic biomarker, using image analysis can better predict clinical outcome in cases with oral dysplasia. STUDY DESIGN: Using the Visiopharm image analysis system, we analyzed a cohort of 150 oral biopsy samples to build and test Straticyte, a model for individualized assessment of the 5-year risk of progression of oral precancerous lesions to invasive squamous cell carcinomas...
March 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
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