Results 71 to 80 of about 66,194 (310)

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

open access: yesThe Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey   +3 more
wiley   +1 more source

A re-evaluation of Cheilolejeunea subgenus Xenolejeunea [PDF]

open access: yes, 1992
Cheilolejeunea subgenus Xenolejeunea Kachroo & Schust. is emended to account for variability observed in stem anatomy and lobule structure. Cheilolejeunea subgenus Tegulilejeunea Schust. is reduced to synonymy with subgenus Xenolejeunea.
Thiers, Barbara M.
core  

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

Analysis of Pulpal Stress in Varied Orthodontic Tooth Movements at Different Bone Levels: A Finite Element Analysis

open access: yesJournal of Indian Orthodontic Society, 2023
Aim To analyze the pulpal stress in varied orthodontic tooth movements at ideal force levels and different bone levels, and compare any differences in pulpal stress values between anterior and posterior teeth.
Rakshita Kathia   +3 more
doaj   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

Comparison of digital radiography and apex locator with the conventional method in root length determination of primary teeth

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry, 2011
Aim: The purpose of this study was to compare the Working length in primary teeth endodontics using intra oral digital radiovisiography and apex locator with conventional method for accuracy.
I E Neena   +4 more
doaj   +1 more source

An illustrated descriptive catalogue of the genera Anidrytus Gerstaecker and Epopterus Chevrolat, with descriptions of new species (Coleoptera: Endomychidae) [PDF]

open access: yes, 2011
The endomychid beetle genera Anidrytus Gerstaecker and Epopterus Chevrolat have been confused for many years. This paper discusses the similarities and differences of these genera, describes new species, makes some nomenclatural changes, and illustrates ...
Strohecker, Henry Frederick
core  

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

open access: yesThe Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa   +2 more
wiley   +1 more source

Management of non-vital anterior tooth with open apex by MTA apical plug -A case report.

open access: yesUpdate Dental College Journal, 2019
A 15 year old boy was presented with pain in his upper anterior teeth. On clinical examination both the maxillary central incisor revealed slight discoloration and fracture of the crown.
Fahd AA Karim   +6 more
doaj   +1 more source

Resorption of Root Apex during Orthodontic Tooth Intrusion Using Light and Heavy Forces [PDF]

open access: yesČeská stomatologie a praktické zubní lékařství, 2014
Introduction, aim: The aim of this prospective study was to find a relationship between the external apical resorption and magnitude of orthodontic force during tooth intrusion. Relationship between the amount of intrusion and the extent of root resorption was investigated as well. Methods: The sample included 34 premolars in 17 patients.
I. Marek, J. Kučera, M. Kamínek
openaire   +2 more sources

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