2012
DOI: 10.1590/s1516-14392012005000183
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Abstract: In this work two very simple apparatuses, namely the ball crater (or ball-on-plate) and the linear reciprocating (or pin-on-plate) tests, were used in order to investigate the wear mechanisms of TPH Spectrum  and Resilab Master  dental composite resins. Loads in the range of 100 g to 1 kg and a total number of up to 24000 cycles were employed. During some of these tests, aqueous aluminum oxide suspensions were used as abrasive agent either diluted or not in distilled water. In case of the ball-on-plate test … Show more

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Cited by 21 publications
(10 citation statements)
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“…This discontinuity, as it is assumed, is the result of the mechanism of internal forces transfer by loaded filler particles towards a less hard matrix [19]. In addition, in [71], it was found that the delamination of composite phases is the dominant mechanism for brittle materials (and such are highly filled PMCCs) in the case of relatively high normal loads, which also occur in physiological processes [72].…”
Section: Discussionmentioning
confidence: 99%
“…This discontinuity, as it is assumed, is the result of the mechanism of internal forces transfer by loaded filler particles towards a less hard matrix [19]. In addition, in [71], it was found that the delamination of composite phases is the dominant mechanism for brittle materials (and such are highly filled PMCCs) in the case of relatively high normal loads, which also occur in physiological processes [72].…”
Section: Discussionmentioning
confidence: 99%
“…Among the mechanisms of wear of PMCCs, abrasion and mechanical fatigue have been indicated [71], mechanical fatigue [72,73], abrasion caused by microcutting and microcracking [74], and delamination [75]. It was found that delamination of composite phases is the predominant mechanism for brittle materials (and these are high-filled PMCCs, K IC stress factor K IC ≈ 1/2 MPa⋅m 0.5 ) in the case of relatively large normal loads [76].…”
Section: Resultsmentioning
confidence: 99%
“…After a number of cycles, fatigue wear dominates the wear behavior and results in severe material loss. This mechanism appears to be more important when higher loads are employed [38]. When the sliding speed increased to 1.5 MPa, the damage to the fiber and PC resin was severe.…”
Section: The Influence Of Fully-impregnated Surface Topography On Weamentioning
confidence: 98%