Results 71 to 80 of about 4,719 (225)

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

open access: yesJournal of Anatomy, Volume 249, Issue 1, Page 127-140, July 2026.
Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek   +2 more
wiley   +1 more source

Protocol for generating three-dimensional induced early ameloblasts using serum-free media and growth factors

open access: yesSTAR Protocols
Summary: Adult humans cannot regenerate the enamel-forming cell type, ameloblasts. Hence, human induced pluripotent stem cell (hiPSC)-derived ameloblasts are valuable for investigating tooth development and regeneration.
Ammar Alghadeer   +5 more
doaj   +1 more source

Reading hominin life history in fossil bones and teeth: methods to test hypotheses regarding its evolution

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1463-1478, June 2026.
ABSTRACT Human life history is derived compared to that of our closest living relatives, the great apes. It has been suggested that these derived traits are causally related to aspects of our ecology, social behaviour and cognitive abilities. However, resolving this requires that we know the evolutionary trajectory of our distinctive pattern of growth,
Paola Cerrito   +2 more
wiley   +1 more source

WDR72 regulates vesicle trafficking in ameloblasts

open access: yesScientific Reports, 2022
As the hardest tissue in the human body, tooth enamel formation is a highly regulated process involving several stages of differentiation and key regulatory genes.
Kaitlin Katsura   +5 more
doaj   +1 more source

Cytochemical localization of dipeptidyl peptidase II activity in rat incisor tooth ameloblasts

open access: yes, 1992
Dipeptidyl peptidase II (DPP II), E.C. 3.4.14.2, a serine class endopeptidase, is widely used as a lysosomal marker in cytochemical studies. To date most ultrastructural studies of ameloblasts use the presence of acid phosphatase activity to identify ...
Paul Monsour   +7 more
core   +1 more source

Periodontitis treatment and microbiome in a patient with FAM20A mutation: Case study of 1.5 years

open access: yesClinical Advances in Periodontics, Volume 16, Issue 2, Page 330-337, June 2026.
Abstract Background Enamel‐renal‐gingival syndrome (ERGS) is an autosomal recessive disorder caused by mutations in the FAMily with sequence similarity 20A (FAM20A) gene, and is characterized by amelogenesis imperfecta, delayed or failed tooth eruption, and periodontitis.
John Rong Hao Tay   +2 more
wiley   +1 more source

Real-time PCR analysis of expression of mRNAs encoding ameloblast markers in primary cultures of ameloblasts.

open access: yes, 2015
A. Wild type (WT) ameloblasts were cultured with RGD or RAD peptide for 0 to 72 hours. The expression of ameloblastin was delayed by RGD but not by RAD. B. WT and Itgβ1CKO ameloblasts were cultured for 0 to 72 hours.
Keigo Yoshizaki (580984)   +8 more
core   +1 more source

The Meaning of Mangabey Molars (And Premolars)

open access: yesEvolutionary Anthropology: Issues, News, and Reviews, Volume 35, Issue 2, June 2026.
ABSTRACT The postcanine teeth of mangabeys (members of Cercocebus and Lophocebus) have figured prominently in discussions about the relationship between hard‐object feeding and dental form. Grey‐cheeked mangabeys (Lophocebus albigena) and sooty mangabeys (Cercocebus atys) both have thickly enameled posterior teeth.
Debbie Guatelli‐Steinberg   +1 more
wiley   +1 more source

Enamel mineralization in the absence of maturation stage ameloblasts

open access: yes, 2015
FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCNPQ -CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOThe role of maturation stage ameloblasts is not clear yet.
Bachmann, L.   +6 more
core   +1 more source

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

open access: yesInternational Endodontic Journal, Volume 59, Issue 6, Page 1057-1069, June 2026.
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   +2 more
wiley   +1 more source

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