Results 111 to 120 of about 288,193 (314)

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

Gambaran Erupsi Gigi Permanen pada Anak Sindrom Down Usia 10-16 Tahun di Sekolah Luar Biasa Kabupaten Jember [PDF]

open access: yes, 2018
  Background: Down Syndrome is a genetic disorder that occurs because of chromosome 21 has three chromosome (trisomy 21). The extra chromosome changes the genetic balance, physical characteristic, intellectual abilities, and physiological body ...
Sinaga, L. A. (Loly)
core  

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

INADEQUATE TREATMENT OF MILK TEETH MISTAKEN FOR PERMANENT TEETH

open access: yesInternational Journal of Research -GRANTHAALAYAH, 2018
Introduction of two very worrying cases which just by chance were to my disposal – treatment of milk tooth as a permanent one.
openaire   +2 more sources

Conservative Treatment of Fused Teeth in Permanent Dentition [PDF]

open access: yes, 2005
Fuzija zubi rijetka je razvojna anomalija i ubraja se u anomalije veličine zuba. Stapanje se može dogoditi samo na razini cakline ili na razini cakline i dentina. Rezultat toga je nastanak jednoga zuba s klinički povećanom krunom. Etiologija fuzije nije
Ana Malčić, Goranka Prpić-Mehičić
core   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

Clinical and physiological characterization of the composition and properties of oral fluid and dental hard tissues in primary school children living in high latitudes

open access: yesЭндодонтия Today, 2020
The characteristics of quantitative and qualitative changes in the composition and properties of hard tissues of teeth and mixed saliva among children of primary school age living in the North Keywords: mixed saliva, hard tissues of teeth, temporary and ...

doaj  

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

Endodontic and Restorative Treatment Patterns of Pulpally Involved Immature Permanent Posterior Teeth

open access: yesInternational Journal of Dentistry, 2018
Objective. The study aims at investigating the treatment patterns for young permanent posterior teeth with pulp involvement. Materials and Methods. A random sample of 1793 dental records of patients aged 6–18 years old who had received dental treatment ...
Ebtissam M. Al-Madi   +3 more
doaj   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

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