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Reactions to dental impression materials
Contact Dermatitis, 1977In 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
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Dental-Impression Material in Nasal Cavity
Practica Oto-Rhino-Laryngologica, 2011We report a case of dental-impression silicone in the right nasal cavity. A 68-year-old man seen for a stuffy right nostril had undergone dental implantation 8 months earlier. Computed tomography (CT) showed an abnormal shadow in the right maxillary sinus and a radiopaque mass in the right mid meatus.
Hideharu Abe +2 more
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Compatibility of alginate impression materials and dental stones
The Journal of Prosthetic Dentistry, 1971Abstract Four alginate (irreversible hydrocolloid) impression materials certified as meeting A.D.A. specification 18 for hydrocolloid impression materials were tested for compatibility with five dental stones (20 tests). Five samples of each alginate-stone combination were made and evaluated (100 casts).
R M, Morrow +5 more
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Visco-elastic properties of dental elastomeric impression materials
Biomaterials, 1986The visco-elastic properties of a number of set elastomeric impression materials were determined using a torsional pendulum apparatus, i.e. the real (G1) and imaginary (G2) parts of the complex shear modulus and the mechanical loss tangent (Tan delta). Comparison with published data on tension and compression set for these materials showed that whilst ...
M, Braden, A T, Inglis
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Tear and rupture of elastomeric dental impression materials
Biomaterials, 1984The curing time dependence of the tear energy, tensile strength and ultimate extension ratio of a range of characterized elastomeric impression materials was investigated. This variation of tensile strength and ultimate extension ratio was correlated with the development of the network structure.
W D, Cook +5 more
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Study of the potential cytotoxicity of dental impression materials
Toxicology in Vitro, 2003The aim of this study was to assess the cytotoxicity of tow types of impression dental materials: polyethers (Impregum Penta, Permadyne Penta Heavy and Light) and vinyl polysiloxanes (Elite Mono Tray, Medium, Low viscosity and Elite H-D Putty). Their cytotoxic effects were studied by indirect and direct tests.
TIOZZO, Roberta +5 more
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Alginate dental impression materials: Chemistry, structure, and properties
Journal of Biomedical Materials Research, 1986AbstractThe setting behavior of calcium alginate impression materials was investigated by monitoring the viscosity, calcium ion activity, and shear modulus during the reaction. Structural information was also obtained from the dependence of viscosity and compressive modulus on the calcium concentration in model systems.
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Antimicrobial activities of dental impression materials.
Dental materials : official publication of the Academy of Dental Materials, 1999The aim of this study was to measure the in vitro killing effects five commercial alginate impression materials had on five test microorganisms.Two alginates with no added disinfectant, one supplemented with chlorhexidine and two others containing quaternary ammonium compounds were tested.
D A, Flanagan +3 more
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Flow studies of certain dental impression materials
The Journal of Prosthetic Dentistry, 1957Abstract A study has been made of the degree of flow exhibited by 15 different impression materials commonly used in prosthetic dentistry and the amount of flow which might be expected from these materials at various time intervals following the beginning of spatulation.
Robert J. Clark, Ralph W. Phillips
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Tissue management with dental impression materials.
American journal of dentistry, 1990The coordination of perceptive tissue management, diligent tooth preparation and prudent selection of the impression material for specific clinical conditions ensures the success of cast and ceramic restorations. The introduction of a knitted cord (Ultrapak with Astringedent) has alleviated the arduous aspects of tissue displacement and the new ...
S M, Morgano +3 more
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