نتایج جستجو برای: odontogenic epithelium

تعداد نتایج: 73441  

2015
Luis Silva Monteiro Marco Martins José Júlio Pacheco Filomena Salazar João Magalhães Paolo Vescovi Marco Meleti

Central odontogenic fibroma is a very rare benign odontogenic tumour characterized by a fibrous mature stroma with variable strands or islands of inactive-looking odontogenic epithelium. Our aim is to report a case of a central odontogenic fibroma and describe the clinical usefulness of Er:YAG laser for the surgical treatment of this tumour. A 74-year-old woman presented with an expansive lesio...

Journal: :dental research journal 0
bhavana gupta shaleen chandra anil singh kunal sah vineet raj vivek gupta

background: vascular endothelial growth factor (vegf) is capable of initiating angiogenesis in blood vessels and may act as mitogenic agent for epithelium of odontogenic cysts and tumors. this study was conducted to evaluate the role of epithelial vegf expression in odontogenic cysts and ameloblastoma and its correlation with argyrophilic nucleolar organizer region counts to assess its role in ...

ژورنال: :مجله دانشکده دندانپزشکی مشهد 0
صفورا صفورا سیفی safora seifi assistant professor, dept of oral & maxillofacial pathology, school of dentistry, babol university of medical sciences, bobol, iranاستادیار گروه آسیب شناسی دهان، فک و صورت دانشکده دندانپزشکی دانشگاه علوم پزشکی بابل شهریار شهریار شفایی shahryar shafaie assistant professor, dept of pathology, faculty of medicine, babol university of medical sciences, bobol, iranاستادیار گروه آسیب شناسی دانشکده پزشکی دانشگاه علوم پزشکی بابلسازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) سیاوش سیاوش قدیری siavash ghadiri dental studentدانشجوی دانشکده دندانپزشکی دانشگاه علوم پزشکی بابلسازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences)

introduction: ameloblastoma is a benign epithelial odontogenic tumor that exhibits a more aggressive behavior than follicular cyst and keratocystic odontogenic tumor. the purpose of the current study was detection and evaluation of microvessel density (mvd) effect on growth and clinical behavior of above odontogenic lesions with immunohistochemistry. materials & methods: in this descriptive-ana...

2017
Syeda Arshiya Ara

Odontogenic lesions can be divided discretely into cysts (an epithelial lined pathological cavity) and tumors (a solid tissue mass, not necessarily neoplastic). They are derived from tooth forming tissues, either the epithelial or the ectomesenchymal or both. They form a heterogeneous group of hamartomatous lesions, benign and malign tumors. According to their origins, they are divided into epi...

ایرانی, سوسن , منصف اصفهانی, فرناز ,

Background & Aims: Odontogenic cysts are derived from odontogenic epithelium and lined by odontogenic epithelium .All three odontogenic cysts (Dentigerous cyst,Odontogenic keratocyst cyst and Radicular cyst)can develop tumoral transformation .The least tumoral transformation rate is related to OKC.Epithelial cell proliferation rate is important in the prognosis .The best marker is HER2/neu. Mat...

2005
Marcelo Macedo CRIVELINI Ana Maria Pires SOUBHIA Renata Callestini FELIPINI

he adenomatoid odontogenic tumor (AOT) is a clinically benign lesion. Discussions about the AOT hamartomatous or neoplastic nature, and the probable odontogenic epithelial cell it originates from still exist. This research aimed to study and discuss the subject by the immunohistochemical detection of cytokeratins, laminin, collagen IV, PCNA and p53 in 8 tumor samples and 8 dental follicle sampl...

2013
Fatemeh Mashhadi Abbas Hamed Sichani Fallahi Ahad Khoshzaban Nazanin Mahdavi Seyedeh Sara Bagheri

OBJECTIVE Tooth loss is a common problem and since current tooth replacement methods cannot counter balance with biological tooth structures, regenerating natural tooth structures has become an ideal goal. A challenging problem in tooth regeneration is to find a proper clinically feasible cell to seed.This study was designed to investigate the odontogenic potential of human bone marrow mesenchy...

Journal: :Science progress and research 2021

Amelo blastoma is a neoplasm that originates from odontogenic epithelium. It the second most common of oral cavity. Uni cystic ameloblastomas refer to those lesions show clinical, radio graphic, or gross features jaw cyst, but on histologic examination typical ameloblastomatous epithelium lining part cyst cavity, with without luminal and/ mural growth. Even though lesion not aggressive as solid...

Journal: :Veterinary pathology 2011
S Nel M B Van Heerden G Steenkamp W F P Van Heerden S C Boy

Tumors of the jaw bones and oral soft tissue are relatively common lesions in dogs. The aim of this study was to find cell markers to differentiate odontogenic epithelium from nonodontogenic epithelium for future research on the pathogenesis and pathology of odontogenic neoplasms in dogs. Keratin 14 and 19 staining was observed in odontogenic and nonodontogenic epithelium, whereas amelogenin an...

2011
Constantinos Houpis Konstantinos I. Tosios Stavroula Merkourea Stylianos Krithinakis Nicolaos Nikitakis Alexandra Sklavounou

An odontogenic keratocyst that eroded into the sinus through the maxillary bone and occupied it, showed replacement of the sinus respiratory epithelium by lesional epithelium, and was associated with fungal rhinosinusitis is presented. A review of the literature disclosed that epithelial replacement has been described in 2 previous case reports, although there is no report on the coexistence of...

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