Results 71 to 80 of about 31,322 (221)

Bioengineering of a human whole tooth: progress and challenge

open access: yesCell Regeneration, 2014
A major challenge in stem cell-based bioengineering of an implantable human tooth is to identify appropriate sources of postnatal stem cells that are odontogenic competent as the epithelial component due to the lack of enamel epithelial cells in adult ...
Yanding Zhang, YiPing Chen
doaj   +1 more source

Automatic Tooth Arrangement with Joint Features of Point and Mesh Representations via Diffusion Probabilistic Models [PDF]

open access: yesarXiv, 2023
Tooth arrangement is a crucial step in orthodontics treatment, in which aligning teeth could improve overall well-being, enhance facial aesthetics, and boost self-confidence. To improve the efficiency of tooth arrangement and minimize errors associated with unreasonable designs by inexperienced practitioners, some deep learning-based tooth arrangement ...
arxiv  

Zebrafish teeth as a model for repetitive epithelial morphogenesis: dynamics of E-cadherin expression [PDF]

open access: yes, 2010
Background: The development of teeth is the result of interactions between competent mesenchyme and epithelium, both of which undergo extensive morphogenesis.
Huysseune, Ann   +3 more
core   +3 more sources

Dentigerous cysts in horses: A retrospective study

open access: yesEquine Veterinary Education, EarlyView.
Summary Background Dentigerous cysts are well‐known congenital defects in horses, and the literature on this condition is extensive. Recently, a third type of dentigerous cyst, associated with an exostosis arising from the temporal bone, has been described.
M. Schläpfer   +3 more
wiley   +1 more source

Recent Advancements in Regenerative Dentistry: A Review [PDF]

open access: yes, 2016
Although human mouth benefits from remarkable mechanical properties, it is very susceptible to traumatic damages, exposure to microbial attacks, and congenital maladies.
Amrollahi, Pouya   +3 more
core   +1 more source

On a model mechanism for the spatial patterning of teeth primordia in the Alligator [PDF]

open access: yes, 1996
We propose a model mechanism for the initiation and spatial positioning of teeth primordia in the alligator,Alligator mississippiensis. Detailed embryological studies by Westergaard & Ferguson (1986, 1987, 1990) show that jaw growth plays a crucial role ...
Cruywagen, G. C.   +6 more
core   +2 more sources

Molecular mechanism for transcriptional regulation of the parathyroid hormone gene by Epiprofin

open access: yesThe FEBS Journal, EarlyView.
The secretion of parathyroid hormone (PTH) from the chief cells in the parathyroid glands is regulated by the concentration of extracellular calcium. Epiprofin (Epfn) expression is induced by NFATc2 in response to elevated serum calcium, and Epfn negatively regulates PTH production.
Takashi Nakamura   +8 more
wiley   +1 more source

Tooth Instance Segmentation from Cone-Beam CT Images through Point-based Detection and Gaussian Disentanglement [PDF]

open access: yesarXiv, 2021
Individual tooth segmentation and identification from cone-beam computed tomography images are preoperative prerequisites for orthodontic treatments. Instance segmentation methods using convolutional neural networks have demonstrated ground-breaking results on individual tooth segmentation tasks, and are used in various medical imaging applications ...
arxiv  

Whole Tooth Regenerative Therapy Using a Bioengineered Tooth Germ [PDF]

open access: yesCurrent Oral Health Reports, 2013
Dental disorders, including dental caries and periodontal disease, can cause fundamental problems for oral functions, such as enunciation, mastication and occlusion, as well as general health issues. Tooth regenerative therapies for tissue repair and whole tooth replacement are currently being developed as novel treatment approaches.
Kei Nakajima   +3 more
openaire   +2 more sources

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