Results 291 to 300 of about 633,913 (353)
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Reactions to dental impression materials
Contact Dermatitis, 1975In the department of prosthetic dentistry at Groningen, during the past four years, approximately 2,000 persons have been treated with Scutan, an epimine plastic for temporary crowns and bridges and Impregum, a polyether impression material. A total of ten patients complained of untoward reactions. Patch tests with the basic materials were performed on
J. P. Nater, G. Van Groeningen
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Materials for Impressions – 2003
Dental Update, 2004Thirty years ago the author set out the logical sequence of dimensional changes that could occur in the impression materials of the 1970s. In the 21st Century, it appears that little has changed and that what the dental practitioner requires today is the same as it always was – a forgiving material that produces perfect impressions with a minimum of ...
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Viscosity of elastomeric impression materials
The Journal of Prosthetic Dentistry, 1977(1) Some elastomeric impression materials (Omniflex and Impregum) exhibited extreme shear thinning properties. This property was considered useful and these materials can be considered all-purpose. (2) The use of impression materials in syringing applications should not be precluded simply because the substances are thick or heavy during spatulation. A
Thomas W. Herfort +3 more
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Impression materials and electrodeposits. Part I: Impression materials
The Journal of Prosthetic Dentistry, 19811. When compared to the master die, all five impression material specimens showed a shrinkage of from 0.07% to 0.23%. When used as substrates for electrodeposition, these dimensions partly predetermined the dimensions of the electrodeposits. (This will be discussed in Part II of this study). 2.
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Silicone Materials for Ear Impressions
Scandinavian Audiology, 1985Comparative properties have been determined for some commonly used ear impression materials (condensation reaction silicones) and some recently developed dental products (addition reaction silicones). Experiments have included measurement of dimensional stability, weight change on storage, viscosity, syringing characteristics, the energy required to ...
E.C. Combe, Michael Nolan
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Tear energy of impression materials
Journal of Dentistry, 1986Tear energies are determined for different types of impression materials. Reversible hydrocolloids show the lowest tear energy values, followed by alginate materials. Condensation silicone-, addition silicone-, polyether- and polysulphide impression materials give higher tear energy values.
P.G.F.C.M. Battistuzzi, M.M.A. Vrijhoef
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Journal of Veterinary Dentistry, 2013
It is clear that many impression materials are available to the veterinary dentist. They each have different inherent properties, handling characteristics, and indications for use. A thorough understanding of these concepts is essential if the veterinarian and laboratory technician are to produce meaningful and accurate reproductions of oral structures.
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It is clear that many impression materials are available to the veterinary dentist. They each have different inherent properties, handling characteristics, and indications for use. A thorough understanding of these concepts is essential if the veterinarian and laboratory technician are to produce meaningful and accurate reproductions of oral structures.
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British Journal of Orthodontics, 1998
This paper incorporates a brief review of impression materials currently available for use by the orthodontic profession; subjective assessments of a selection of alginates, silicones and bite registration materials in a clinical setting; and a list of prices and retailers of impression materials.
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This paper incorporates a brief review of impression materials currently available for use by the orthodontic profession; subjective assessments of a selection of alginates, silicones and bite registration materials in a clinical setting; and a list of prices and retailers of impression materials.
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Radiopacity of elastomeric impression materials
Australian Dental Journal, 1994AbstractThe purpose of this study was to measure and classify the radiopacity of various elastomeric impression materials available on the open market and to compare their appearance in radiographs of the oral tissues. In order to measure and classify their radiopacity, twenty‐eight specimens of various materials were placed and exposed on film ...
D. Iakovidis +3 more
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Accuracy of impressions with different impression materials in angulated implants
Nigerian Journal of Clinical Practice, 2013To evaluate the dimensional accuracy of the resultant (duplicative) casts made from two different impression materials (polyvinyl siloxane and polyether) in parallel and angulated implants.Three definitive master casts (control groups) were fabricated in dental stone with three implants, placed at equi-distance.
K Prasad +4 more
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