Results 51 to 60 of about 25,698 (308)

Using microstructures and composition to decipher the alterations of rodent teeth in modern regurgitation pellets—a good news-bad news story

open access: yes, 2020
Rodent accumulations are widely used for palaeoenvironmental reconstructions. But these accumulations are created through the activity of predators (carnivorous mammals, birds of prey), the predation and digestion of which modify the preservation of ...
Dauphin, Y.
core   +3 more sources

In‐vitro puncture experiment using alligator teeth tracks the formation of dental microwear and its association with hardness of the diet

open access: yesThe Anatomical Record, EarlyView.
Abstract With the development of dental microwear texture analysis (DMTA), there has been an increasing application of DMTA for dietary estimation in extant and fossil reptiles, including dinosaurs. While numerous feeding experiments exist for herbivorous mammals, knowledge remains limited for carnivorous reptiles. This study aimed to qualitatively and
K. Usami, M. O. Kubo
wiley   +1 more source

齿轮动力互研法的工艺研究

open access: yesJixie chuandong, 1999
The method of gear dynamic mutual abrasion is a method in which the dynamic force on tooth surface was used to do the precision finishing. In order to avoid the “midconvex” of tooth profile and the serious abrasion in dedendum, the technology of center ...
姚文席, 王超然, 张怀存, 王东
doaj  

ANALYSIS OF THE BIOELECTRICAL ACTIVITY OF THE MASTICATORY MUSCLES, DEFINED ACCORDING TO BERNOULLI'S PRINCIPLE AS "STRONG" OR "FAST", FOR THE PREDICTION OF PATHOLOGICAL TOOTH ABRASION (ACCORDING TO MAGNETIC RESONANCE IMAGING AND ELECTROMYOGRAPHIC STUDIES)

open access: yesУкраїнський стоматологічний альманах
Pathological abrasion is a well-known disease, but it is topical issue of hard dental tissues. The principle of D. Bernoulli and its numerical expression in the form of the coefficient “k” were used.
Yu.P. Koval
doaj   +1 more source

An Ex-vivo Shear and tensile bond strengths of orthodontic molar tubes bonded using different techniques [PDF]

open access: yes, 2017
Molar bonding procedures need continuous improvement to be widely accepted clinically and eventually replace molar bands. The purpose of this study was to determine the effects of enamel micro-abrasion and silane coating of the base of molar tubes on ...
Abu Alhaija, Elham   +2 more
core   +4 more sources

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

open access: yesThe Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo   +4 more
wiley   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part I Reproducibility of diet inference using different instruments

open access: yesThe Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has become a well‐established method for dietary inference and reconstruction in both extant and extinct mammals and other tetrapods. As the volume of available data continues to grow, researchers could benefit from combining published data from various studies to perform meta‐analyses.
Daniela E. Winkler, Mugino O. Kubo
wiley   +1 more source

An embouchure aid for saxophone player

open access: yesRestorative Dentistry & Endodontics, 2012
This study aims to introduce the method that can relieve vibrating forces to oral environment by making an embouchure aid. Thin plastic crown forms were fabricated to prevent tooth abrasion and irritation to lip mucosa for the saxophone player.
Ho-Jin Moon
doaj   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

open access: yesThe Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx   +6 more
wiley   +1 more source

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