Results 141 to 150 of about 2,162,249 (355)

Stress Distribution and Collagen Remodeling of Periodontal Ligament During Orthodontic Tooth Movement

open access: yesFrontiers in Pharmacology, 2019
Periodontal ligament (PDL), as a mechanical connection between the alveolar bone and tooth, plays a pivotal role in force-induced orthodontic tooth movement (OTM). However, how mechanical force controls remodeling of PDL collagenous extracellular matrix (
Zixin Li   +9 more
semanticscholar   +1 more source

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

Innovation of Invisalign technology and its efficacy for tooth movement

open access: yes口腔疾病防治, 2018
The Invisalign system has been used in the clinic for nearly two decades and its invisible, comfortable and beautiful features are increasingly favored by doctors and patients. In recent years, Invisalign technology is constant⁃ ly innovating from mild
WANG Shuo, SUN Yuhong, HUA Xianming
doaj   +1 more source

Has Revenge Become a Justification to Legitimize the Death Penalty? [PDF]

open access: yes, 2020
Revenge has played a role in criminal justice systems for thousands of years. From the Code of Hammurabi, to the Bible, to modern Supreme Court jurisprudence, revenge, or “getting even,” has been a consideration in how wrongdoers are punished, especially
Ryan, Jordan
core   +1 more source

Classification review of dental adhesive systems: from the IV generation to the universal type [PDF]

open access: yes, 2017
Adhesive dentistry has undergone great progress in the last decades. In light of minimal-invasive dentistry, this new approach promotes a more conservative cavity design, which relies on the effectiveness of current enamel-dentine adhesives.
Migliau, Guido   +5 more
core   +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

Mitochondrial dynamics–fusion, fission, movement, and mitophagy–in neurodegenerative diseases [PDF]

open access: yes, 2009
Neurons are metabolically active cells with high energy demands at locations distant from the cell body. As a result, these cells are particularly dependent on mitochondrial function, as reflected by the observation that diseases of mitochondrial ...
Alexander   +42 more
core   +3 more sources

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

Mechanobiology of Periodontal Ligament Stem Cells in Orthodontic Tooth Movement

open access: yesStem Cells International, 2018
Periodontal ligament stem cells (PDLSCs) possess self-renewal, multilineage differentiation, and immunomodulatory properties. They play a crucial role in maintaining periodontal homeostasis and also participated in orthodontic tooth movement (OTM ...
Huaming Huang, Ruili Yang, Yanheng Zhou
semanticscholar   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

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