Results 31 to 40 of about 2,774 (214)

Canal pattern in mesiobuccal root of maxillary molars of Nigerians

open access: yesNigerian Dental Journal, 2007
Objective: This in vitro study was carried out to investigate the variation (if any) in canal outline and number(s) in the mesiobuccal root (MBR) of maxillary first and second molar teeth of Nigerians, and its possible influences on the prognosis of ...
E. C. Otoh, M. C. Odika, A. O. Loto
doaj   +1 more source

Treatment Management with Long Term Follow-Up in Late-Admitted Traumatized Permanent Incisors: Case Series

open access: yesEuropean Annals of Dental Sciences, 2021
Traumatic dental injuries are particularly common in school-age children and often occur in the anterior region. Process management of cases is possible with alternative treatments according to the root development levels.
Nurhan Özalp   +2 more
doaj   +1 more source

Age-related changes of the root apex of the tooth an adult

open access: yesЭндодонтия Today, 2020
Studied 62 teeth removed for medical reasons in 54 adults (32 men and 22 women) of different ages to determine age-related changes in the root tips of teeth.Were used methods of odontoscope, x-ray examination, and prepared and studied thin sections of ...

doaj  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Toward Nano‐Nutritional Medicine: A Remotely Activated Trans‐Vaccenic Acid‐Based Lipid Nanoparticles for Enhancing Immune Checkpoint Blockade Therapy

open access: yesAdvanced Science, EarlyView.
Eutectic mixtures from trans‐vaccenic acid (TVA) and stearic acid, which served as phase‐change material to encapsulate IR780, forming NIR‐responsive nanoparticles. IR780@TVA LNPs induce photothermal therapy and initiate adaptive anti‐tumor immunity.
Kang Liu   +12 more
wiley   +1 more source

Recent advances in the construction of humanized animal models and applications in translational medicine

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Substantial advances have been achieved in the development of humanized mouse models, which have proven highly valuable in evaluating cancer immunotherapies and elucidating the mechanisms of infectious diseases. There is now a growing shift in research toward larger animal models—such as pigs—that offer greater physiological similarity to humans ...
Yanan Lyu, Yong‐Guang Yang, Zheng Hu
wiley   +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

Spontaneously Healed Horizontal Root Fracture: A Case Report

open access: yesJournal of Dental School, 2020
Objectives: Root fracture occurs less frequently in comparison with other traumatic dental injuries, and accounts for about 0.5%-7% of all dental injuries in permanent dentition.
Yasaman Rezvani   +5 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

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 more
wiley   +1 more source

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