Journal ArticleDOI
Marginal Fracture vs Mechanical Properties of Amalgam
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TLDR
The clinical marginal fracture characteristics of three commercial dental amalgams were evaluated and compared with a number of their mechanical properties to determine which properties would relate best to clinical performance, and it was found that compressive strength, tensile strength, Transverse strength, transverse deflection, and flow were ineffective.Abstract:
The clinical marginal fracture characteristics of three commercial dental amalgams were evaluated and compared with a number of their mechanical properties to determine which properties would relate best to clinical performance. It was found that compressive strength, tensile strength, transverse strength, transverse deflection, and flow as determined by ADA Specification No. 1 were ineffective, whereas the rheological properties of dynamic creep, static creep, and slow compressive strength appeared effective in relating to marginal fracture.read more
Citations
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Journal ArticleDOI
Marginal Ditching and Staining as a Predictor of Secondary Caries Around Amalgam Restorations: A Clinical and Microbiological Study
TL;DR: It is suggested that amalgam fillings where margins show wide ditches or carious lesions should be replaced, and that narrow ditches and color change alone should not trigger the replacement of a filling.
Journal ArticleDOI
Quantitative wear measurement of posterior composite resins.
TL;DR: A quantitative method for measuring the wear of posterior composite restorations has been developed using the comparison of die stone casts of restored teeth to a set of calibrated standards as a means of evaluating the wear.
Journal ArticleDOI
Marginal Fracture of Amalgam Restorations
TL;DR: Marginal fracture characteristics of clinical restorations made from three amalgam alloys were evaluated during a four-year period and the rate of increase was different among alloys.
Journal ArticleDOI
Diametral and compressive strength of dental core materials
TL;DR: Light-cured hybrid resin Composites were stronger than autocured titanium containing composites and glass ionomer-based materials and of a polyurethane material were considerably lower than for resin composites or amalgam.
Journal ArticleDOI
Challenges with studies investigating longevity of dental restorations--a critique of a systematic review.
Barbara Lesley Chadwick,Elizabeth Treasure,Paul M. H. Dummer,Frank David John Dunstan,Alan Scott Maxwell Gilmour,R. Jones,Ceri Phillips,J. Stevens,Jeremy Simon Rees,Stephen Richmond +9 more
TL;DR: A review of the longevity of dental restorations completed recently encountered substantial problems in designing an appropriate protocol to address this issue, and the multiplicity of study designs, and reporting methods found in the literature made meta-analyses impossible.
References
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Journal ArticleDOI
How to use Ridit Analysis
TL;DR: In this article, a ridit analysis of data from the Cornell Automotive Crash Injury Research Program (ACIR) is presented to illustrate the problems that come up in actual studies, problems ranging from difficulties due to peculiarities and imperfections of the basic data to questions of presentation and interpretation of the results.
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The mechanism of marginal fracture of amalgam fillings.
TL;DR: The Mechanism of Marginal Fracture of Amalgam fillings as discussed by the authors is a well-known method for the extraction of amalgam filling from amalgamic fillings.
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Dynamic Creep of Dental Amalgam
David B. Mahler,Jan Van Eysden +1 more
TL;DR: It was found that different alloys vary widely in their dynamic-creep characteristics; that higher mercury content demonstrates increased dynamic creep, and that static creep correlates well to dynamic creep.
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Clinical investigation on the relation of mercury to the amalgam restoration: I
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Transverse Strength of Amalgam
David B. Mahler,J.C. Mitchem +1 more
TL;DR: The purpose of this investigation was to determine and evaluate the transverse strength of amalgam and determine whether other tests might provide further information concerning the strength of dental amalgam.