Evaluation of detail reproduction for three die materials by using scanning electron microscopy and two-dimensional profilometry

Epoxydent epoxy resin, and Steady-plast polyurethane resin. A polyvinyl siloxane impression was made of a disk-shaped calibration model, with etched grooves ranging from 1 to 46 μm in depth. The die materials were poured in the silicone impression of the disk, then examined with a scanning electron...

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Bibliographic Details
Published in:The Journal of prosthetic dentistry 1995-07, Vol.74 (1), p.1-7
Main Authors: Derrien, Gérard, Menn, Gabriel Le, Jendresen, Malcolm D., Malone, William F.P., Taylor, Thomas D.
Format: Article
Language:English
Subjects:
Analysis of Variance
Calcium Sulfate - chemistry
Calibration
Crystallography
Dental Casting Investment - chemistry
Dental Impression Materials - chemistry
Dentistry
Epoxy Resins - chemistry
Evaluation Studies as Topic
Microscopy, Electron, Scanning
Optics and Photonics - instrumentation
Polyurethanes - chemistry
Polyvinyls - chemistry
Siloxanes - chemistry
Surface Properties
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Description
Summary:Epoxydent epoxy resin, and Steady-plast polyurethane resin. A polyvinyl siloxane impression was made of a disk-shaped calibration model, with etched grooves ranging from 1 to 46 μm in depth. The die materials were poured in the silicone impression of the disk, then examined with a scanning electron microscope and two-dimensional profilometer. The results revealed that the artificial stone could not reproduce details smaller than 20 μm because of the size of the crystalline structure, whereas epoxy resin and polyurethane resin accurately reproduced details of 1 to 2 microns.
ISSN:0022-3913
1097-6841
DOI:10.1016/S0022-3913(05)80221-5