Results 81 to 90 of about 5,305 (247)

Evaluation of the performance of ChatGPT‐4 and ChatGPT‐4o as a learning tool in endodontics

International Endodontic Journal, EarlyView.
Abstract Aims The aim of this study was to evaluate the accuracy and consistency of responses given by two different versions of Chat Generative Pre‐trained Transformer (ChatGPT), ChatGPT‐4, and ChatGPT‐4o, to multiple‐choice questions prepared from undergraduate endodontic education topics at different times of the day and on different days ...
Esra Arılı Öztürk, Ceren Turan Gökduman, Burhan Can Çanakçi   +2 more
wiley   +1 more source

Sequelae in Permanent Dentition After Traumatic Dental Injury in the Primary Dentition—A Retrospective Cohort Study

International Journal of Paediatric Dentistry, EarlyView.
ABSTRACT Background Luxation injuries to the predecessors can cause sequelae in the permanent successors. Aim To describe and analyze sequelae in permanent successors according to the child's age at the time of different luxation traumas (concussion, subluxation, extrusion, lateral luxation, intrusion and avulsion) in the primary dentition compared ...
Anne‐Marie Folmer, Eva Lauridsen, Josephine Solgaard Henriksen, Nuno Vibe Hermann   +3 more
wiley   +1 more source

The Importance of Connexin 43 in Enamel Development and Mineralization

Frontiers in Physiology, 2018
During enamel development, formation of hydroxyapatite crystals and regulation of pH in the enamel matrix require massive transport of ions. Both ameloblasts and adjacent dental epithelial cells in the stellate reticulum co-express several transmembrane ...
Sali Al-Ansari, Rozita Jalali, Lilian I. Plotkin, Lilian I. Plotkin, Lilian I. Plotkin, Antonius L. J. J. Bronckers, Pamela DenBesten, Yan Zhang, Judith E. Raber-Durlacher, Judith E. Raber-Durlacher, Jan de Lange, Frederik R. Rozema, Frederik R. Rozema   +12 more
doaj   +1 more source

Na+ and K+ transport and maturation stage ameloblast modulation

Frontiers in Physiology, 2023
Introduction: Enamel mineralization requires calcium transport into the extracellular matrix for the synthesis of hydroxyapatite (HA) crystals. Formation of HA releases protons into the matrix, which are then neutralized when ameloblasts modulate from ...
Jake Ngu, Antonius L. J. J. Bronckers, Kaitlin Katsura, Yan Zhang, Pamela K. Den Besten   +4 more
doaj   +1 more source

Evaluation of Fractal and Radiomorphometric Measurements of Mandibular Bone Structure in Pediatric Patients With Molar Incisor Hypomineralization

International Journal of Paediatric Dentistry, EarlyView.
ABSTRACT Background Molar incisor hypomineralization (MIH) is associated with enamel's existing qualitative developmental defects. Aim This study aimed to assess the cortical and trabecular mandibular bone morphology in pediatric patients with MIH using fractal analysis (FA) and digital panoramic radiography (DPR) with various radiomorphometric indices.
Asli Soğukpinar Önsüren, Katibe Tugce Temur   +1 more
wiley   +1 more source

PTCH-1 and MDM2 expression in ameloblastoma from a West African sub-population: Implication for chemotherapeutics [PDF]

, 2015
Introduction: Ameloblastoma is a slow growing, painless odontogenic swelling which can attain sizes that result in severe deformities of thecraniofacial complex. It is the most commonly encountered odontogenic tumor in Nigeria.
Adisa, AO, Barbeck, M, Booms, P, Ghanaati, S, Lawal, AO, Sader, RA, Udeabor, SE   +6 more
core   +2 more sources

Ameloblastic Fibro–Odontoma [PDF]

Head and Neck Pathology, 2013
A case of an amelobastic fibro-odontoma affecting a 15 year-old girl will be discussed. The characteristic radiologic and histologic features of the entity will be described.
Brenda L. Nelson, Lester D.R. Thompson
openaire   +3 more sources

Life history data derived from the dental histological analysis of Giraffa camelopardalis: Implications for the palaeohistology of extinct giraffids

Journal of Anatomy, EarlyView.
The study of incremental lines in the dentine (left), cementum (centre) and enamel (right) of the giraffe revealed key information about the rate and pattern of dental growth in this vertebrate. These results were also useful to obtain data on the biology and life history of the species and sets the stage for future palaeohistological analysis in ...
Carmen Nacarino‐Meneses, Juan Marcos Jannello, Anusuya Chinsamy   +2 more
wiley   +1 more source

MDM2-Mediated p21 Proteasomal Degradation Promotes Fluoride Toxicity in Ameloblasts

Cells, 2019
Fluoride overexposure is an environmental health hazard and can cause enamel and skeletal fluorosis. Previously we demonstrated that fluoride increased acetylated-p53 and its downstream target p21 in ameloblast-derived LS8 cells. However, p21 function in
Huidan Deng, Atsushi Ikeda, Hengmin Cui, John D. Bartlett, Maiko Suzuki   +4 more
doaj   +1 more source

Lungfish‐like antero‐labial tooth addition and amphibian‐like enameloid‐enamel transition in the coronoid of a Devonian stem actinopterygian

Journal of Anatomy, EarlyView.
The tooth patterning logic, which cannot be inferred from surface morphology, is revealed by visualizing buried tooth remnants in 3D. The primary teeth are added labially, initially organized in radial rows, which transition into linear rows where the coronoid becomes slender.
Donglei Chen
wiley   +1 more source