Results 71 to 80 of about 105,395 (331)

Downregulation of FGF Signaling by Spry4 Overexpression Leads to Shape Impairment, Enamel Irregularities, and Delayed Signaling Center Formation in the Mouse Molar. [PDF]

open access: yes, 2019
FGF signaling plays a critical role in tooth development, and mutations in modulators of this pathway produce a number of striking phenotypes. However, many aspects of the role of the FGF pathway in regulating the morphological features and the mineral ...
Ahn, Youngwook   +8 more
core   +1 more source

A new Crocodyloidea from the middle Eocene of Zamora (Duero Basin, Spain)

open access: yesThe Anatomical Record, EarlyView.
Abstract The eusuchian crocodyliforms recorded in the Eocene levels of the Spanish Duero Basin belong to three lineages: Planocraniidae, with the species Duerosuchus piscator; Alligatoroidea, represented by several specimens of the genus Diplocynodon; and Crocodyloidea, which includes several specimens traditionally attributed to Asiatosuchus.
Iván Narváez   +5 more
wiley   +1 more source

Gene Therapy Using Recombinant AAV Type 8 Vector Encoding TNAP‐D10 Improves the Skeletal Phenotypes in Murine Models of Osteomalacia

open access: yesJBMR Plus, Volume 7, Issue 1, January 2023., 2023
ABSTRACT Hypophosphatasia (HPP), caused by loss‐of‐function mutations in the ALPL gene encoding tissue‐nonspecific alkaline phosphatase (TNAP), is characterized by skeletal and dental hypomineralization that can vary in severity from life‐threatening to milder manifestations only in adulthood.
Flavia Amadeu de Oliveira   +7 more
wiley   +1 more source

Developmental Defects of Enamel in Primary Teeth and Association with Early Life Course Events: A Study of 6--36 Month old Children in Manyara, Tanzania. [PDF]

open access: yes, 2013
Children with low birth weight show an increased prevalence of developmental defects of enamel in the primary dentition that subsequently may predispose to early childhood caries (ECC).Focusing 6--36 months old, the purpose of this study was to assess ...
A review of the developmental defects of enamel index (DDE Index)   +39 more
core   +4 more sources

Mineralization Potential of Polarized Dental Enamel

open access: yesPLoS ONE, 2009
Management of human teeth has moved from a surgical to a more conservative approach of inhibiting or preventing lesion progression. Increasing enamel mineralization is crucial in this regard. A potential difficulty is the preferential mineralization of the outermost portion of the enamel that can prevent overall mineralization.
Reina Tanaka   +3 more
openaire   +5 more sources

Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?

open access: yesThe Anatomical Record, EarlyView.
Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley   +1 more source

Growing sabers: Mandibular shape and biomechanical performance trajectories during the ontogeny of Smilodon fatalis

open access: yesThe Anatomical Record, EarlyView.
Abstract The evolution of organisms can be studied through the lens of developmental systems, as the timing of development of morphological features is an important aspect to consider when studying a phenotype. Such data can be challenging to obtain in fossil amniotes owing to the scarcity of their fossil record. However, the numerous remains of Rancho
Narimane Chatar   +5 more
wiley   +1 more source

Perturbation method to model enamel caries progress [PDF]

open access: yesarXiv, 2007
We develop a theoretical model of the carious lesion progress caused by acids diffusing into the tooth enamel from the dental plaque. The acids react with static hydroxyapatite, which leads to demineralization of the enamel, and consequently to the development of the carious lesion.
arxiv  

The application of amino acid racemization in the acid soluble fraction of enamel to the estimation of the age of human teeth [PDF]

open access: yes, 2008
Estimation of age-at-death for skeletonised forensic remains is one of the most significant problems in forensic anthropology. The majority of existing morphological and histological techniques are highly inaccurate, and show a bias towards ...
Collins, M. J.   +3 more
core   +1 more source

Tooth eruption status and bite force determine dental microwear texture gradients in albino rats (Rattus norvegicus forma domestica)

open access: yesThe Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) is widely applied for inferring diet in vertebrates. Besides diet and ingesta properties, factors like wear stage and bite force may affect microwear formation, potentially leading to tooth position‐specific microwear patterns.
Daniela E. Winkler   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy