Results 101 to 110 of about 76,223 (261)

SOME HISTORICAL MUSINGS ON TOOTH/ROOT RESORPTION

open access: yesJournal of Istanbul University Faculty of Dentistry, 2017
Contemporarily, the ravages of tooth resorption are seen daily around the world. While some teeth can be retained many are lost to this process. Although many types of resorptive processes have been identified, the etiological factors involved in this malady are not often clear and both speculation as to it source and clinical management have received ...
openaire   +4 more sources

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

open access: yesThe Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras   +3 more
wiley   +1 more source

Biomimetics Design of Tooth Root Zone at Cylindrical Gears Profile. [PDF]

open access: yesBiomimetics (Basel), 2023
Atanasovska I   +4 more
europepmc   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson   +2 more
wiley   +1 more source

基于应力释放提高齿轮弯曲强度方法的研究

open access: yesJixie chuandong, 2014
Stress concentration of the gear tooth root fillet is an important factor to affect the bending fatigue strength of the gear.In order to improve the bending fatigue strength,the stress relief hole in the tooth surface is established to make root stress ...
赵向飞, 雷前召
doaj  

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

open access: yesThe Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini   +3 more
wiley   +1 more source

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

open access: yesThe Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla   +7 more
wiley   +1 more source

Root resorption and impacted tooth position [PDF]

open access: yesAmerican Journal of Orthodontics and Dentofacial Orthopedics, 2020
Mukesh, Kumar   +3 more
openaire   +2 more sources

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