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https://www.readbyqxmd.com/read/28439606/cemento-ossifying-fibroma-of-the-mandible-a-clinicopathological-report
#1
Tapas K Bala, Sarmeshta Soni, Prakriti Dayal, Indrajeet Ghosh
Cemento-ossifying fibromas are rare fibro-osseous benign neoplasms that affect the jaws. They are included in the group of mesodermal odontogenic tumors and commonly present as a progressively growing lesion that might attain enormous size with resultant deformity, if left untreated. A confusion prevails on the terminology, which can only be confirmed by histopathologic evaluation. A case of cemento-ossifying fibroma involving the right mandible is described in a 30 year-old female patient. The clinical, radiographic, histologic features are presented and the various differential diagnosis are discussed...
May 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28439572/long-term-clinical-and-radiologic-documentation-of-a-maxillary-odontogenic-myxoma-from-early-clinical-signs-to-implant-supported-prosthodontic-rehabilitation-case-report-and-review-of-the-literature
#2
Sebastian Berger, Paul Hakl, Marius Meier, Walter Sutter, Andrej M Kielbassa, Dritan Turhani
Odontogenic myxoma (OM) is a non-metastasizing neoplasm of mesenchymal origin, arising in the tooth-bearing areas of the jaws. When regarding the whole spectrum of differential diagnoses for osteolytic jaw lesions, OM constitutes a benign tumor rarely located in the maxilla. Radiographically, displacement of teeth and frequent involvement of the sinus will be found with advanced maxillary OM. The tumor can be removed by means of several techniques, ranging from conservative measures to extended surgical procedures that differ according to type of bone resection and reconstruction of the defect...
April 24, 2017: Quintessence International
https://www.readbyqxmd.com/read/28439170/non-calcifying-type-of-calcifying-epithelial-odontogenic-tumor-an-unusual-case-report-with-special-emphasis-on-histogenesis-of-calcifications
#3
Sravya Taneeru, Venkateswara Rao Guttikonda, Rajani Korlepara, Rajasekhar Gaddipati, Vinay Kumar Kundoor
Calcifying epithelial odontogenic tumour also known as Pindborg tumour, is a rare benign odontogenic neoplasm of locally aggressive behavior. It is thought to arise from the epithelial element of the enamel origin which are reminiscent of the cells in the stratum intermedium layer of enamel organ in tooth development. The tumour is characterized histologically by the presence of polygonal epithelial cells, calcifications and eosinophilic deposits resembling amyloid. Non-calcifying epithelial odontogenic tumours are very rare and unusual...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28439167/comparative-evaluation-of-c-reactive-protein-and-wbc-count-in-fascial-space-infections-of-odontogenic-origin
#4
Ravikiran Bagul, Sanjay Chandan, Vikrant Dilip Sane, Sujay Patil, Dinesh Yadav
PURPOSE: To assess efficacy of C-reactive protein levels as monitoring tools for patients with fascial space infections of odontogenic origin. MATERIAL AND METHOD: A randomized prospective study was conducted on 20 patients suffering from fascial space infection of odontogenic origin, in the department of Oral and Maxillofacial Surgery Bharati Vidyapeeth dental college and hospital, Pune, Patients between 18 and 60 years of age of both the sexes were selected. All patients were treated and observed by the same surgeon...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28436474/interactions-of-amtn-odam-and-scpppq1-proteins-of-a-specialized-basal-lamina-that-attaches-epithelial-cells-to-tooth-mineral
#5
Aurélien Fouillen, Juliana Dos Santos Neves, Charline Mary, Jean-Daniel Castonguay, Pierre Moffatt, Christian Baron, Antonio Nanci
A specialized basal lamina (sBL) mediates adhesion of certain epithelial cells to the tooth. It is distinct because it does not contain collagens type IV and VII, is enriched in laminin-332, and includes three novel constituents called amelotin (AMTN), odontogenic ameloblast-associated (ODAM), and secretory calcium-binding phosphoprotein proline-glutamine rich 1 (SCPPPQ1). The objective of this study was to clarify the structural organization of the sBL. Fluorescence and immunogold labeling showed that the three proteins co-localize...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28430880/cerebral-abscess-associated-with-odontogenic-bacteremias-hypoxemia-and-iron-loading-in-immunocompetent-patients-with-right-to-left-shunting-through-pulmonary-arteriovenous-malformations
#6
E J Boother, S Brownlow, H C Tighe, K B Bamford, J E Jackson, C L Shovlin
Background: Cerebral abscess is a recognised complication of pulmonary arteriovenous malformations (PAVMs) that allow systemic venous blood to bypass the pulmonary capillary bed through anatomic right-to-left shunts. Broader implications and mechanisms remain poorly explored. Methods: Between June 2005 and December 2016, at a single institution, 445 consecutive adult patients with CT-scan confirmed PAVMs (including 403 (90.5%) with hereditary haemorrhagic telangiectasia) were recruited to a prospective series...
April 19, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28418347/difficult-cases-of-odontogenic-deep-neck-infections-a-report-of-three-patients
#7
Onur İsmi, Mesut Yeşilova, Cengiz Özcan, Yusuf Vayisoğlu, Kemal Görür
BACKGROUND: Deep neck infections are important otolaryngologic emergencies due to serious complications and the risk of airway compromise, which can lead to mortality. Although the most common causes among pediatric patients are tonsillitis and pharyngeal infections, odontogenic infections are an important cause in adults. CASE REPORT: We present three patients with multiple deep neck space abscess formation due to odontogenic infection. Two of them required tracheotomy due to airway compromise, and one had mediastinitis...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28417452/worldwide-pattern-of-antibiotic-prescription-in-endodontic-infections
#8
REVIEW
Juan José Segura-Egea, Jenifer Martín-González, María Del Carmen Jiménez-Sánchez, Isabel Crespo-Gallardo, Juan José Saúco-Márquez, Eugenio Velasco-Ortega
BACKGROUND: Odontogenic infections, and especially endodontic infections, are polymicrobial, involving a combination of Gram-positive and Gram-negative facultative anaerobes and strictly anaerobic bacteria. Therefore, antibiotics can be used as an adjunct to endodontic treatment. However, most chronic and even acute endodontic infections can be successfully managed by disinfection of the root-canal system, which eliminates the source of infection, followed by abscess drainage or tooth extraction, without the need for antibiotics...
April 17, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28416847/-effects-of-bioactive-glass-and-extracted-dentin-proteins-on-human-dental-pulp-cells
#9
Y Xin, S N Wang, C Y Cui, Y M Dong
OBJECTIVE: To investigate the proliferation, odontogenic differentiation and mineralization of human dental pulp cells (HDPCs) on bioactive glass(BG) and extracted dentin proteins(EDP). METHODS: Primary HDPCs were isolated from third molars by enzyme digestion and were cultured in Dulbecco's minimum essential medium (DMEM). Then the 4th generation of HDPCs was cultured with DMEM, which contained BG-EDP, BG, and EDP, respectively. Meanwhile HDPCs were cultured in DMEM as control group...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28415511/facile-synthesis-and-characterization-of-novel-rapid-setting-spherical-sub-micron-bioactive-glasses-cements-and-their-biocompatibility-in-vitro
#10
Yuli Li, Qiming Liang, Cai Lin, Xian Li, Xiaofeng Chen, Qing Hu
Dental pulp vitality is extremely important for the tooth viability, since it provides nutrition and forms the dentin. Bioactive glasses (BGs) may be promising materials for pulp repair due to their excellent abilities of rapidly bonding to bone and stimulating new bone growth. However, the unsatisfied handling property, low plasticity, and poor rapid-setting property of traditional BGs limit its application in vital pulp therapy. Spherical bioactive glasses (SBGs) exhibited higher osteogenesis and odontogenic differentiation than irregular BGs...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28414658/septic-cerebral-venosinus-thrombosis-secondary-to-an-odontogenic-infection
#11
Hongvan Le, Shane Prejean, Madeleine Heck
BACKGROUND: Cerebral venosinus thrombosis (CVT); is an uncommon, potentially fatal disease that is more common in young adults and children. Thrombophilia, elevated estrogenic states, and infections are the most common risk factors in patients who develop CVT. CASE: A 69-year-old man with a right-sided odontogenic infection presented with fever, headache, opthalmoplegia, and periorbital swelling. Imaging revealed evidence of meningitis and thrombosis of bilateral ophthalmic veins, the cavernous sinus, right internal jugular vein, and sigmoid sinus...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28409045/odontogenic-cyst-with-verrucous-proliferation-exhibiting-melanin-pigmentation
#12
Nidhi Manaktala, Karen Boaz, Krupa Mehta Soni, Srikant Natarajan, Junaid Ahmed, Keshava Bhat, Nandita Kottieth Pallam, Amitha Juanita Lewis
Verrucous proliferation arising from odontogenic cysts is a rare entity. We report an unusual case of an infected odontogenic cyst with verrucous proliferation and melanin pigmentation in a 13-year-old male patient who presented with an intraoral swelling in relation to impacted teeth 26 and 27. The enucleated lesion was diagnosed as an odontogenic keratocyst and the patient died within two years of presentation due to multiple recurrences. The clinical, radiological, and microscopic features of the lesion are presented with an attempt to discuss the etiopathogenesis...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28407991/three-dimensional-volumetric-analysis-of-ghost-cell-odontogenic-carcinoma-using-3-d-reconstruction-software-a-case-report
#13
João Pedro Perez Gomes, Andre Luiz Ferreira Costa, Carlos Takahiro Chone, Albina Messias de Almeida Milani Altemani, João Maurício Carrasco Altemani, Carmen Silvia Passos Lima
OBJECTIVE: Ghost cell odontogenic carcinoma is a very rare malignant neoplasm. Tumor volume may be a more precise alternative for determining size, which is usually measured by maximum linear dimension. The purpose of this case report is to highlight the importance of obtaining 3-dimensional (3-D) images of the tumor for volumetric analysis to improve the chances of surgical success. This report presents a case of ghost cell odontogenic carcinoma infiltrating the maxillary sinus through the palate...
May 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28403646/neuropathic-orofacial-pain-facts-and-fiction
#14
Lene Baad-Hansen, Rafael Benoliel
Definition and taxonomy This review deals with neuropathic pain of traumatic origin affecting the trigeminal nerve, i.e. painful post-traumatic trigeminal neuropathy (PTTN). Symptomatology The clinical characteristics of PTTN vary considerably, partly due to the type and extent of injury. Symptoms involve combinations of spontaneous and evoked pain and of positive and negative somatosensory signs. These patients are at risk of going through unnecessary dental/surgical procedures in the attempt to eradicate the cause of the pain, due to the fact that most dentists only rarely encounter PTTN...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28401887/bone-marrow-mesenchymal-stem-cells-combine-with-treated-dentin-matrix-to-build-biological-root
#15
Shiwei Luo, Fei Pei, Wen Zhang, Weihua Guo, Rui Li, Wei He, Weidong Tian
Treated dentin matrix (TDM) as a kind of scaffolding material has been proved odontogenic induction ability on dental-derived stem cells. Given the limited resources of dental stem cells, it is necessary to seek new seed cell which easily obtained. Jaw bone marrow mesenchymal stem cell (JBMMSC) as non-dental-derived stem cell relates to the development of teeth and jaws which suggest us JBMMSCs could act as a new seed cell for tooth tissue engineering. To assess the odontogenic and osteogenic potential of JBMMSCs, cells were induced by TDM extraction in vitro and combined with TDM in vivo...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28400320/classification-proposed-of-malignant-intraosseous-odontogenic-tumors-miot
#16
N Zwetyenga, E Broly, D Guillier, A Hallier, J Levasseur, V Moris
Malignant intraosseous odontogenic tumors (MIOT) of the jaws are very rare. The diagnosis is difficult. Clinical, paraclinical and histological diagnostic criteria, strict are well established. But the International Union Against Cancer (UICC) does not provide TNM classification that will allow harmonization of the treatment. Indeed, despite their location, they cannot be classified as primary tumors of the oral cavity because of their localization in the bone marrow, making them systematically classified as T4...
April 8, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28391076/improvised-vacuum-assisted-closure-for-severe-neck-infection-in-poorly-equipped-conditions
#17
S Adam, H D Sama, C Chossegros, M K Bouassalo, M Y Akpoto, E Kpemissi
INTRODUCTION: Dental infections are common and are mainly due to dental caries. When left untreated, these infections can lead to severe life-threatening sepsis. CASE REPORT: The authors reported a case of a severe odontogenic deep neck space infection in a 54-year-old male. The patient was a heavy smoker with incidentally discovered diabetes. He was successfully treated by surgical drainage combined with an improvised Vacuum-Assisted Closure (VAC) system. The results of surgical drainage followed by insertion of an improvised VAC system were spectacular...
April 6, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28390759/tube-decompression-for-staged-treatment-of-a-calcifying-odontogenic-cyst-a-case-report
#18
Hany A Emam, Judson Smith, Ashleigh Briody, Courtney A Jatana
The calcifying odontogenic cyst is a rare developmental odontogenic lesion with a distinguishing cystic lining containing "ghost" epithelial cells. The variation in clinical, radiographic, and histologic findings makes the treatment decision difficult for these lesions. There are very few reports on treatment, with enucleation and curettage being the standard surgical method of choice for the cystic type and excision of the tumor for the solid type. A 2-stage surgical approach consisting of initial decompression with tube placement followed by a secondary procedure of enucleation and curettage is common for other large odontogenic cysts, such as dentigerous and odontogenic keratocysts...
March 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28390135/comparative-histological-and-immunohistochemical-study-of-ameloblastomas-and-ameloblastic-carcinomas
#19
M Martínez-Martínez, A Mosqueda-Taylor, R Carlos-Bregni, F Ramoa-Pires, W Delgado-Azanero, R Neves-Silva, B Aldape-Barrios, O Paes-de Almeida
BACKGROUND: This study aimed to compare the histological and immunohistochemical characteristics of ameloblastomas (AM) and ameloblastic carcinomas (AC). MATERIAL AND METHODS: Fifteen cases of AM and 9 AC were submitted to hematoxilin and eosin (H&E) and immunohistochemical analysis with the following antibodies: cytokeratins 5,7,8,14 and 19, Ki-67, p53, p63 and the cellular adhesion molecules CD138 (Syndecan-1), E-cadherin and β-catenin. The mean score of the expression of Ki-67 and p53 labelling index (LIs) were compared between the groups using the t test...
April 8, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390134/primordial-odontogenic-tumor-an-immunohistochemical-profile
#20
R Bologna-Molina, T Mikami, V Pereira-Prado, F-R Pires, R Carlos-Bregni, A Mosqueda-Taylor
BACKGROUND: Primordial Odontogenic Tumor (POT) is a recently described odontogenic tumor characterized by a variably cellular loose fibrous tissue with areas similar to the dental papilla, covered by cuboidal to columnar epithelium that resembles the internal epithelium of the enamel organ, surrounded at least partly by a delicate fibrous capsule. The purpose of this study was to investigate the possible histogenesis and biological behavior of this rare tumor by means of a wide immunohistochemical analysis of its epithelial and mesenchymal components...
April 8, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
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