Results 31 to 40 of about 1,036,153 (414)
Frontiers in Materials, 2021 Bone scaffolds play an important role in promoting the healing of large bone defects. However, the type of scaffold material, type of drug loaded into the scaffold, and method of preparation have a significant impact on the scaffold's properties. In this
Dingkun Liu +8 more
doaj +1 more source
Three-dimensional imaging and analysis of annual layers in tree trunk and tooth cementum [PDF]
Proceedings of SPIE 12041, Bioinspiration, Biomimetics, and
Bioreplication XII, 120410C (20 April 2022), 2022 The growth of plants, animals, and humans can give rise to layered structures associated with annual periodicity. Thickness variations are often correlated to nutrition supply and stress factors. The annual layers in a tree trunk with millimeter thickness can be directly counted, whereas the layers in tooth cementum with micrometer thickness are made ...
arxiv +1 more source
Data, 2017 Arctic sea ice has been on the decline over the past several decades, and multi-year sea ice has decreased significantly in its areal share of the overall sea ice cover.
Matthew Tooth, Mark Tschudi
doaj +1 more source
Wear of human teeth: a tribological perspective [PDF]
, 2005 The four main types of wear in teeth are attrition (enamel-on-enamel contact), abrasion (wear due to abrasive particles in food or toothpaste), abfraction (cracking in enamel and subsequent material loss), and erosion (chemical decomposition of the tooth)
Amaechi B. T. +18 more
core +2 more sources
Is a Pulpless Tooth a Dead Tooth? [PDF]
The Journal of the National Dental Association, 1921 n ...
openaire +3 more sources
The biomechanical function of periodontal ligament fibres in orthodontic tooth movement [PDF]
, 2014 Orthodontic tooth movement occurs as a result of resorption and formation of the alveolar bone due to an applied load, but the stimulus responsible for triggering orthodontic tooth movement remains the subject of debate.
Fagan, Michael J. +4 more
core +4 more sources
DArch: Dental Arch Prior-assisted 3D Tooth Instance Segmentation [PDF]
arXiv, 2022 Automatic tooth instance segmentation on 3D dental models is a fundamental task for computer-aided orthodontic treatments. Existing learning-based methods rely heavily on expensive point-wise annotations. To alleviate this problem, we are the first to explore a low-cost annotation way for 3D tooth instance segmentation, i.e., labeling all tooth ...
arxiv
Natural Product as the Storage medium for an avulsed tooth – A Systematic Review
Cumhuriyet Dental Journal, 2019 Dental avulsion is considered as one of the most severe types of traumatic tooth injuries because it causes damage to several structures and results in the complete displacement of the tooth from its socket in the alveolar bone. The ideal situation is to
R. R, N. Ms
semanticscholar +1 more source
Smoking and tooth discolouration: findings from a national cross-sectional study [PDF]
, 2005 Background: Smoking is a risk factor of a number of oral diseases; the extent to which tobacco products influence dental aesthetics has not been widely investigated. The aim of this study was to determine satisfaction with own tooth colour of smokers and
Alkhatib, MN, Bedi, R, Holt, RD
core +3 more sources
Dense Representative Tooth Landmark/axis Detection Network on 3D Model [PDF]
arXiv, 2021 Artificial intelligence (AI) technology is increasingly used for digital orthodontics, but one of the challenges is to automatically and accurately detect tooth landmarks and axes. This is partly because of sophisticated geometric definitions of them, and partly due to large variations among individual tooth and across different types of tooth. As such,
arxiv