Results 41 to 50 of about 27,438 (268)

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

Low-invasive method of lengthening the crown as an alternative to implants

open access: yesЭндодонтия Today, 2020
The emergence of modern materials for therapeutic dentistry significantly increased the possibility of clinicians to conduct restoration of severely damaged teeth. We present a clinical case of recovery of the damaged tooth crown.

doaj  

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

Full Mouth Rehabilitation of Severe Fluorozed Teeth with an Interdisciplinary Approach (6 Handed Dentistry) [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2013
Whenever the treatment revolves around structural balance and aesthetic harmony, the crux remains to be the periodontal health of the existing dentition.
Koppolu Pradeep   +4 more
doaj   +1 more source

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

Retention and Clinical Performance of Zirconia Crowns: A Comprehensive Review

open access: yesInternational Journal of Dentistry, 2020
Zirconia has been used for rehabilitation of edentulous spaces approximately for a decade, and there have been several reports regarding the clinical performance and retention of zirconia crowns.
Fatemeh Soleimani   +4 more
doaj   +1 more source

Reframing Perceptions in Restorative Dentistry: Evidence-Based Dentistry and Clinical Decision-Making

open access: yesInternational Journal of Dentistry, 2021
Objectives. The worldwide interest of both dentists and patients in esthetic dentistry has affected decision-making in dental practice. The aim of this study was to investigate contemporary dental practice in restorative dentistry and the relationship ...
Ayah A Al-Asmar   +8 more
doaj   +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

Crown Preparation (Out of Print)

open access: yesMedEdPORTAL, 2010
This resource is an online course demo providing dental students with fundamental didactic and technical knowledge to begin preclinical skill development for full crown preparations.
Heiko Spallek, Ronald Kaiser
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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