Results 51 to 60 of about 31,322 (221)

Ontogenesis of the alveolar walls of the tooth germ according to orthopantomography [PDF]

open access: yesСаратовский научно-медицинский журнал, 2015
Objective: to identify changes of the configuration and size of the walls of the alveolar stages of ontogenesis. Materials and Methods. Orthopantomograms studied 196 children aged 5 to 12 years. We used visual and morphometric methods. Results.
Okushko M.R.   +2 more
doaj  

Odontodysplasia involving single tooth: A rare entity

open access: yesSRM Journal of Research in Dental Sciences, 2014
Odontodysplasia is the developmental anomaly caused due to disturbances in the ectodermal and mesodermal component of the tooth. Although it involves multiple teeth in a quadrant, the involvement of a single tooth germ is very rare. The present report is
Mahesh Ramakrishnan, Padma Menon
doaj   +1 more source

Study on Virtual Gear Hobbing Simulation and Gear Tooth Surface Accuracy [PDF]

open access: yesarXiv, 2023
This paper presents a digital simulation method for the hobbing process of cylindrical gears. Based on the gear generation principle, taking the professional software as the tool, the problem of virtual hobbing simulation on involute helical gears was studied, and the virtual hobbing simulation of hobbing on the whole gear was completed by using macros
arxiv  

Chromosome‐scale reference genome of Pectocarya recurvata, the species with the smallest reported genome size in Boraginaceae

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Pectocarya recurvata (Boraginaceae, subfamily Cynoglossoideae), a species native to the Sonoran Desert (North America), has served as a model system for a suite of ecological and evolutionary studies. However, no reference genomes are currently available in Cynoglossoideae. A high‐quality reference genome for P.
Poppy C. Northing   +3 more
wiley   +1 more source

C-Jun N-terminal kinase (JNK) pathway activation is essential for dental papilla cells polarization.

open access: yesPLoS ONE, 2021
During tooth development, dental papilla cells differentiate into odontoblasts with polarized morphology and cell function. Our previous study indicated that the C-Jun N-terminal kinase (JNK) pathway regulates human dental papilla cell adhesion ...
Jiao Luo   +3 more
doaj   +1 more source

CTooth: A Fully Annotated 3D Dataset and Benchmark for Tooth Volume Segmentation on Cone Beam Computed Tomography Images [PDF]

open access: yesarXiv, 2022
3D tooth segmentation is a prerequisite for computer-aided dental diagnosis and treatment. However, segmenting all tooth regions manually is subjective and time-consuming. Recently, deep learning-based segmentation methods produce convincing results and reduce manual annotation efforts, but it requires a large quantity of ground truth for training.
arxiv  

Expression patterns of tenascin-N in the developing mandible [PDF]

open access: yes, 2019
Previous studies have demonstrated that tenascin-N belongs to the family of tenascins, which are found in the extracellular matrix of various embryonic tissues, wounds, and tumors.
이종민, 정영수, 정한성
core   +1 more source

Tooth‐germs in the Wallaby Macropus billardierif.

open access: yesProceedings of the Zoological Society of London, 1911
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
H. W. Marett Tims, A. Hopewell Smith
openaire   +3 more sources

Histochemical indications for a chemically complex signal produced by the cervical gill slit gland of the pygmy sperm whale (Kogia breviceps)

open access: yesThe Anatomical Record, EarlyView.
Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Tiffany F. Keenan   +13 more
wiley   +1 more source

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