Výsledky vyhledávání - "P.G.T. van der Varst"

Sliding wear of ZrO2-Al2O3 composite ceramics

Autor: Y.J. He, A.J.A. Winnubst, A.J. Burggraaf, H. Verweij, P.G.T. van der Varst, G. de With

Publikováno v: Journal of the European Ceramic Society, 17(11), 1371-1380. Elsevier

The friction and wear behaviour of two ZrO2-Al2O3 composite materials, ADZ (20 wt% Al2O3 dispersed in yttria-doped ZrO2 matrix) and ZTA (Al2O3-15 wt% ZrO2), were investigated. Sliding wear tests were carried out on these materials under dry condition

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8dff67345d25700d1d04eca94e01f0d
https://doi.org/10.1016/s0955-2219(96)00239-7

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Mechanical longevity estimation model for post-and-core restorations

Autor: Marie-Charlotte D.N.J.M. Huysmans, P.G.T. van der Varst

Publikováno v: Dental Materials, 11, 252-257. Elsevier

Objectives. The aim of this study was to integrate existing knowledge of in vitro strength of post-and-cores and masticatory loading to arrive at longevity estimates for post-and-core restorations when subjected to clinically relevant loads. Methods.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::232015ea5c5370d84fbe5af9000e3a1b
https://doi.org/10.1016/0109-5641(95)80058-1

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Failure behaviour of fatigue-tested post and cores

Autor: P.G.T. van der Varst, A.J.M. Plasschaert, M.C.R.B. Peters, Marie-Charlotte D.N.J.M. Huysmans

Publikováno v: International Endodontic Journal. 26:294-300

Evaluation of the long-term behaviour of restorations in clinical trials can be time-consuming. A partial alternative to the clinical trial can be found in mechanical fatigue testing. The aim of this study was to evaluate the failure behaviour of pos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf7ff5eb6f79c9b8e518ade19ae75bf9
https://doi.org/10.1111/j.1365-2591.1993.tb00574.x

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Finite element analysis of quasistatic and fatigue failure of post and cores

Autor: P.G.T. van der Varst, Marie-Charlotte D.N.J.M. Huysmans

Publikováno v: Journal of Dentistry, 1993(21), 57-64. Elsevier

Finite element (FE) analysis of the mechanical behaviour of materials and structures facilitates the investigation of their internal stress distributions. However, the validity of the model is not always ascertained. In this study a three-dimensional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::890ca5ebbc643b0083930dbefa74ff94
https://doi.org/10.1016/0300-5712(93)90054-t

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Fatigue Behavior of Direct Post-and-core-restored Premolars

Autor: M.C.R.B. Peters, R. Schäfer, U. Soltesz, Alphons J. M. Plasschaert, Marie-Charlotte D.N.J.M. Huysmans, P.G.T. van der Varst

Publikováno v: Journal of Dental Research. 71:1145-1150

Evaluation of long-term mechanical behavior of new types of restorations in clinical trials is time-consuming. A partial alternative can be found in experimental fatigue-testing, which simulates accelerated mechanical deterioration. The aim of this s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a11175c01d10c96056fc02ba34f8bb84
https://doi.org/10.1177/00220345920710050301

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The influence of simulated clinical handling on the flexural and compressive strength of posterior composite restorative materials

Autor: P.G.T. van der Varst, Marie-Charlotte D.N.J.M. Huysmans, Peter Monaghan, Eugene P. Lautenschlager

Publikováno v: Dental Materials, 12, 2, pp. 116-120
Dental Materials, 12, pp. 116-120
Dental Materials, 12, 116-120. Acad dental materials
Dental Materials, 12, 116-120
Dental Materials, 12, 116-120. Elsevier

Objectives. The aim of this study was to investigate the influence of clinical handling on the flexural and compressive strengths of two commerically available posterior composites. Methods. Since the manufacturing of test specimens in a truly clinic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c20b466f869f20879d898ba743e6d133
https://hdl.handle.net/2066/23160

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The Weibull distribution applied to post and core failure

Autor: M.C.R.B. Peters, Marie-Charlotte D.N.J.M. Huysmans, P.G.T. van der Varst, Alphons J. M. Plasschaert

Publikováno v: Dental materials : official publication of the Academy of Dental Materials. 8(4)

In this study, data on initial failure loads of direct post and core-restored premolar teeth were analyzed using the Weibull distribution. Restorations consisted of a prefabricated titanium alloy post, and an amalgam, composite or glass cermet core b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a70dcfec94f21a451541d1856ea0d533
https://pubmed.ncbi.nlm.nih.gov/1291399

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Estimation of the mechanical lifetime of dental restorations: method and preliminary results

Autor: P.L.M. Lemmens, P.G.T. van der Varst, M.C.R.B. Peters, Alphons J. M. Plasschaert

Publikováno v: Journal of biomechanics. 24(5)

To assess the clinical performance of restorative materials with respect to mechanical failure, the shape of the restoration, the strength and fatigue properties and the loading history are important. This study deals with the feasibility of a method

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b49fc6d2d990315116d2b3e0bc664aaa
https://pubmed.ncbi.nlm.nih.gov/2050709

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