Results 71 to 80 of about 133,721 (303)

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

The Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

3D Simulation Modeling of the Tooth Wear Process. [PDF]

PLoS ONE, 2015
Severe tooth wear is the most common non-caries dental disease, and it can seriously affect oral health. Studying the tooth wear process is time-consuming and difficult, and technological tools are frequently lacking.
Ning Dai, Jian Hu, Hao Liu
doaj   +1 more source

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

The 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

Association of dietary habits and parental-reported sleep tooth grinding with tooth wear in children with mixed dentition

BMC Oral Health, 2017
Background Tooth wear has a multifactorial etiology, thus it should be assessed within a multiple-variable framework. The objective of this investigation was to assess the association of dietary habits and parental-reported sleep tooth grinding (STG ...
Claudia Restrepo, Daniele Manfredini, Ruben Manrique, Frank Lobbezoo   +3 more
doaj   +1 more source

Examination on the wear process of polyformaldehyde gears under dry and lubricated conditions

Friction, 2020
This study presents the results of detailed wear process examination on polyformaldehyde gears under both dry and lubricated conditions. A multi-purpose durability test rig was employed to study the wear performance of polyformaldehyde gear pairs.
Guoda Yu, Huaiju Liu, Ken Mao, Caichao Zhu, Zehua Lu   +4 more
doaj   +1 more source

Three-dimensional anatomy of equine incisors : tooth length, enamel cover and age related changes [PDF]

, 1944
BACKGROUND:Equine incisors are subjected to continuous occlusal wear causing multiple, age related changes of the extragingival crown. It is assumed that the occlusal wear is compensated by continued tooth elongation at the apical ends of the teeth.
Schrock, Patricia, Lupke, Matthias, Seifert, Hermann, Staszyk, Carsten   +3 more
core   +2 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

The 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, T. Kubo, Ellen Schulz‐Kornas, T. M. Kaiser, Daniela E. Winkler   +4 more
wiley   +1 more source

Lifecycle wear prediction of spur gears with time-dependent Archard model and surface topography evolution

Results in Engineering
Gear wear degrades transmission accuracy by altering tooth geometry, contact pressure, and dynamic response. Many prediction approaches under dry/solid-lubricated conditions still under-represent the tribo-dynamic coupling among a time-dependent wear ...
Jingqi Zhang, Jianxing Zhou, An Wu, Quanwei Cui, Ning Dong   +4 more
doaj   +1 more source

Kualiti dan keberkesanan bimbingan manasik bagi jemaah haji Daerah Bintan Kepulauan Riau Indonesia [PDF]

, 2018
Ibadah haji merupakan rukun kelima dalam rukun Islam yang menjadi kewajiban keatas umat Islam yang mampu mengerjakannya. Namun, didapati sebahagian dari bakal jemaah tidak dapat memahami modul bimbingan akibat dari pada tenaga pengajar yang kurang ...
H. Abdullah, Erizal
core  

Radiation-induced root surface caries restored with glass-ionomer cement placed in conventional and ART cavity preparations: Results at two years [PDF]

, 2005
The document attached has been archived with permission from the Australian Dental Association (8th Jan 2008). An external link to the publisher’s copy is included.Background: There are no published studies comparing the clinical performances of more ...
American Dental Association., Brown LR, Gao W., Haveman CW, Hu J Y, Huber MA, McComb D., Sindhu R., Vissink A., Vissink A., Weerheijm KL, Wood RE, Yip HK, Yu C.   +13 more
core   +2 more sources