Results 301 to 310 of about 917,998 (348)

The tooth wear evaluation system: a modular clinical guideline for the diagnosis and management planning of worn dentitions.

Journal of Oral Rehabilitation, 2016
Tooth wear is a multifactorial condition, leading to the loss of dental hard tissues, viz. enamel and dentine. Tooth wear can be divided into the subtypes mechanical wear (attrition and abrasion) and chemical wear (erosion). Because of its multifactorial
P. Wetselaar, F. Lobbezoo
semanticscholar   +1 more source

Wear and enhancement of wear resistance – A review

Materials Today: Proceedings, 2020
Abstract This paper discusses the wear and its effect on the performance and life span of the components. The efforts made by researchers to improve the performance of materials have been discussed. Enhanced wear resistance has been reported due to refined grain structure and improved hardness.
Neha Bhadauria, Sunil Pandey, Pulak M. Pandey   +2 more
openaire   +2 more sources

Wear and wear transition modeling of ceramics

Wear, 1996
Abstract Wear and wear transitions are the major concerns regarding the tribological application of ceramic materials. The objective of this study is to understand wear and wear transition mechanisms of ceramics with emphasis on wear and wear transition prediction. There are four new findings from this research.
Stephen M. Hsu, Yushu Wang
openaire   +2 more sources

Wear characteristics in a two-body wear test

Dental Materials, 1994
A previous report compared spherical steatite (ceramic enamel substitute) abraders with those of natural enamel in a two-body wear test. The wear rates and coefficients of friction of the two abraders against various composites and an amalgam were well correlated although the wear rates were slightly higher with steatite.
Wassell RW, McCabe JF, Walls AWG
openaire   +4 more sources

Analysis for Wear Behaviors of Oxidative Wear

Tribology Letters, 2011
Sliding wear tests were performed for H13 steel and a cast steel under atmospheric conditions of 25, 200, and 400°C. XRD results identify that oxidative wear prevailed for the steels during sliding at 200–400°C. However, the oxidative wear at 200°C presented entirely different wear behaviors from the one at 400°C.
S. Q. Wang, K.M. Chen, X. H. Cui, M. X. Wei   +3 more
openaire   +2 more sources

Occlusal wear simulation with the ACTA wear machine

Journal of Dentistry, 1994
This paper describes how the clinical conditions in stress bearing areas are thought to be simulated in the ACTA wear machine. The wear types simulated are erosive wear and contact sliding wear in the presence of a third-body medium, consisting of natural food substances. Wear due to surface fatigue may also be studied with the wear machine. Wear rates
Prem Pallav, A.J. de Gee
openaire   +3 more sources

Interrelated Effects of Temperature and Environment on Wear and Tribochemistry of an Ultralow Wear PTFE Composite

, 2015
A particular alumina–PTFE nanocomposite has distinguished itself with unusually large wear reductions at trace filler loadings. Recent studies have shown that the formation of carboxylic acid end groups in humid environments is a critical part of the ...
H. S. Khare, A. Moore, D. Haidar, L. Gong, Jiaxin Ye, J. Rabolt, D. Burris   +6 more
semanticscholar   +1 more source

The interactions between attrition, abrasion and erosion in tooth wear.

Monographs in Oral Science, 2014
Tooth wear is the result of three processes: abrasion (wear produced by interaction between teeth and other materials), attrition (wear through tooth-tooth contact) and erosion (dissolution of hard tissue by acidic substances).
R. Shellis, M. Addy
semanticscholar   +1 more source

Wearing Text

2017
This chapter examines the act of wearing text. It considers how the author teaches the relationship between the-media and collective identity through an experiment during which students reflect on their own media consumption. As 'wearing' and identity are inextricably linked — the act of dressing in the morning is a process of performance; a ...
openaire   +1 more source

Enamel wear caused by monolithic zirconia crowns after 6 months of clinical use.

Journal of Oral Rehabilitation, 2014
The purpose of this study was to evaluate enamel wear caused by monolithic zirconia crowns and to compare this with enamel wear caused by contralateral natural antagonists. Twenty monolithic zirconia crowns were placed in 20 patients requiring full molar
T. Stober, J. L. Bermejo, P. Rammelsberg, M. Schmitter   +3 more
semanticscholar   +1 more source