Wear: mechanisms, manifestations and measurement. Report of a workshop

Mair, L.H.; Stolarski, T.A.; Vowles, R.; Lloyd, C.H.

doi:10.1016/0300-5712(95)00043-7

Cited by 325 publications

(307 citation statements)

References 23 publications

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“…On buccal and lingual tooth surfaces not covered by bacterial plaque, friction from the tongue and other soft tissues also contributes to the development of this wear, which is particularly visible on restorative materials such as composites 27,45 or glass ionomer cements 33 where abrasion of matrices eventually loosens the fillings;…”

Section: --Three-body Type Of Abrasionmentioning

confidence: 99%

Understanding dental wear

d’Incau¹,

Saulue²

2012

J Dentofacial Anom Orthod

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Dental wear is deterioration as a result of use. It has existed since the beginning of mankind in all civilizations and cultures. It occurred routinely and intensely in early populations but was considered to be a physiological process. Ideas about dental wear are not as clear today because while it is less pronounced it sometimes appears in pathological patterns. Moreover, it is produced by many complex mechanisms acting in synchrony or sequentially, in synergy or additive, in patterns that often mask its true origins. In an effort to ameliorate the means of preventing and diagnosing dental wear and improving our understanding of its diverse manifestations, the primary objective of this article will be to present the principal mechanisms that produce it as well as their consequences. To organize our presentation we have adopted a tribological approach, focusing on the friction, wear, and lubrication of interacting surfaces.

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Section: --Three-body Type Of Abrasionmentioning

confidence: 99%

Understanding dental wear

d’Incau¹,

Saulue²

2012

J Dentofacial Anom Orthod

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“…To exemplify, Mair et al 5 , Yap et al 6 , Condon & Ferracani 7 , and Momoi et al 8 used devices that reproduce the wear of composite resins in a complex interaction of the mechanisms of erosion, corrosion, adhesion, abrasion and impact. Deterioration can also be accelerated through mechanical fatigue.…”

Section: Introductionmentioning

confidence: 99%

Analysis of polymerization time on abrasive wear of dental resins

et al. 2010

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An evaluation was made of the abrasive wear of six composite thermofixed dental resins subjected to different polymerization times. The method of evaluation was based on sharpness measurements to quantify the abrasive wear resistance of the resins. To this end, a test bench was built, consisting of a rotating porcelain cylinder that wears out a resin-coated cylinder placed above it, thus causing vertical displacement of the contact as the wear progresses. The values of vertical displacement, i.e., the input variables, were read and recorded by means of a computer program to obtain the sharpness values. These data indicated that the resins displayed different behaviors as a function of the polymerization times applied, reinforcing the importance of using a practical and rapid method of analysis in order to ensure that the behavior of new materials is fully understood before they are launched on the market.

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“…Do estudo dos textos destacam-se os autores Mair et al [5], Yap et al [6], Condon & Ferracani [7] e Momoi et al [8].…”

Section: Introductionunclassified

Análise da influência dos diferentes tempos de polimerização por luz incandescente sobre a resistência ao desgaste abrasivo de resinas compostas

et al. 2008

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RESUMONo mercado atual a qualidade é necessária na fabricação dos produtos. No mercado odontológico, as resinas compostas são cada vez mais utilizadas para substituir materiais tradicionais, como amalgama, nas restaurações estéticas e funcionais, apresentando boa estética e funcionalidade. A composição química destes materiais é variável e os resultados das reações químicas do processo de polimerização são bastante desconhecidos. O objetivo deste trabalho era medir a resistência do desgaste abrasivo de seis resinas compostas vendidas no mercado brasileiro polimerizadas com tempos de 10, 20 e 40 segundos. O método do disco retificado modificado para aplicações em odontologia foi usado para tornar esta proposta viável. Neste banco de ensaios um disco dinâmico, revestido por porcelana, desgasta um disco estático revestido do tipo de resina que se pretende avaliar, que foi polimerizada durante um tempo pré-estabelecido. Com a determinação do desgaste de material, num determinado tempo, determinava-se a agressividade (capacidade de um material para desgastar outro material) do disco dinâmico sobre o disco estático. Utilizando-se para isso um programa computacional (LabView). Posteriormente era feita a regressão linear dos valores obtidos e determinado o coeficiente angular, utilizado no cálculo de agressividade. Valores elevados de agressividade indicam uma maior agressão do disco dinâmico contra o disco estático. Os resultados mostraram um comportamento variável para cada material que foi polimerizado nos diferentes tempos de polimerização utilizado, mostrando que o método para fazer estudos de desgaste é prático e rápido para testar materiais novos antes da sua utilização. Palavras chaves:Resinas compostas, desgaste abrasivo, tempo de fotopolimerização. Analysis of the influence of the different times of polymerization by incandescent light in composite resins by evaluation of its abrasive wear ABSTRACTIn the current market an increasing quality is demanded to manufacture products. At the odontologic market the composed resins are becoming more and more used to replace old materials, like amalgamates in the aesthetic and functional restorations, since they present a better appearance and easier manuscript. The chemical composition of these materials varies and the results of the chemical reactions of polymerization processes are quite unknown. The aim of this work was to measure the resistance of the abrasive wear of six composed resins sold in Brazilian market when displayed to polymerization periods of 10, 20 and 40 seconds. The grinding disc method appropriated for odontology was used to make this process possible. For

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Wear: mechanisms, manifestations and measurement. Report of a workshop

Cited by 325 publications

References 23 publications

Understanding dental wear

Understanding dental wear

Analysis of polymerization time on abrasive wear of dental resins

Análise da influência dos diferentes tempos de polimerização por luz incandescente sobre a resistência ao desgaste abrasivo de resinas compostas

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