Results 21 to 30 of about 4,719 (225)

Ameloblastic fibrodentinoma

open access: yesIndian Journal of Dental Research, 2011
Odontogenic tumors comprise a complex group of lesions of diverse histopathological types and clinical behavior. The group of mixed odontogenic tumors, which are also rare, is composed of proliferating odontogenic epithelium in a cellular ectomesenchyme resembling dental papilla. Ameloblastic fibrodentinoma is a rare benign odontogenic tumor.
Deepak Bhargava   +3 more
openaire   +3 more sources

Ameloblastic fibrosarcoma transformation from ameloblastic fibroma

open access: yesNational Journal of Maxillofacial Surgery, 2022
Ameloblastic fibrosarcoma (AFS) is an extremely rare malignant odontogenic tumor. It is composed of benign odontogenic epithelium, resembling that of ameloblastoma, and a mesenchymal part exhibiting features of fibrosarcoma. The development of this lesion in the jaws is either de novo or from preexisting ameloblastic fibroma ...
Ramakrishnan, Divya Sanjeevi   +2 more
openaire   +2 more sources

Endocytosis and Enamel Formation

open access: yesFrontiers in Physiology, 2017
Enamel formation requires consecutive stages of development to achieve its characteristic extreme mineral hardness. Mineralization depends on the initial presence then removal of degraded enamel proteins from the matrix via endocytosis.
Cong-Dat Pham   +7 more
doaj   +1 more source

Ameloblastic fibroma

open access: yesJournal of Oral and Maxillofacial Pathology, 2012
Ameloblastic fibroma is a rare odontogenic tumor comprising neoplastic epithelial and mesenchymal tissues. This lesion was previously considered to be a benign lesion with very limited recurrence rate and malignant transformation. However, recent reports have suggested that this lesion has the potential for recurrence and malignant transformation.
Rao, Srinivas Ponnam   +2 more
openaire   +3 more sources

Ameloblastic fibrodentinosarcoma and ameloblastic fibro-odontosarcoma: A systematic review [PDF]

open access: yesJournal of Stomatology, Oral and Maxillofacial Surgery, 2018
The purpose of the present review was to integrate the available data published on ameloblastic fibrodentinosarcoma (AFDS) and ameloblastic fibro-odontosarcoma (AFOS) into a comprehensive analysis of their clinical/radiologic features. An electronic search was undertaken in July/2017.
Chrcanovic, Bruno   +1 more
openaire   +4 more sources

The acid test of fluoride: how pH modulates toxicity. [PDF]

open access: yesPLoS ONE, 2010
It is not known why the ameloblasts responsible for dental enamel formation are uniquely sensitive to fluoride (F(-)). Herein, we present a novel theory with supporting data to show that the low pH environment of maturating stage ameloblasts enhances ...
Ramaswamy Sharma   +4 more
doaj   +1 more source

Overexpression of RCAN1, a Gene on Human Chromosome 21, Alters Cell Redox and Mitochondrial Function in Enamel Cells

open access: yesCells, 2022
The regulator of calcineurin (RCAN1) has been implicated in the pathogenesis of Down syndrome (DS). Individuals with DS show dental abnormalities for unknown reasons, and RCAN1 levels have been found to be elevated in several tissues of DS patients.
Yi Li   +7 more
doaj   +1 more source

Fluoride Alters Klk4 Expression in Maturation Ameloblasts through Androgen and Progesterone Receptor Signaling

open access: yesFrontiers in Physiology, 2017
Fluorosed maturation stage enamel is hypomineralized in part due to a delay in the removal of matrix proteins to inhibit final crystal growth. The delay in protein removal is likely related to reduced expression of kallikrein-related peptidase 4 (KLK4 ...
Michael H. Le   +6 more
doaj   +1 more source

Amelogenesis Imperfecta; Genes, Proteins, and Pathways

open access: yesFrontiers in Physiology, 2017
Amelogenesis imperfecta (AI) is the name given to a heterogeneous group of conditions characterized by inherited developmental enamel defects. AI enamel is abnormally thin, soft, fragile, pitted and/or badly discolored, with poor function and aesthetics,
Claire E. L. Smith   +8 more
doaj   +1 more source

Mitochondrial Function in Enamel Development

open access: yesFrontiers in Physiology, 2020
Enamel is the most calcified tissue in vertebrates. Enamel formation and mineralization is a two-step process that is mediated by ameloblast cells during their secretory and maturation stages.
Veronica Costiniti   +9 more
doaj   +1 more source

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