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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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A rare allergy to a polyether dental impression material
Clinical Oral Investigations, 2011Polyether impression materials have been used in dentistry for more than 40 years. Allergic reactions to these materials such as reported in the 1970s ceased after replacement of a catalyst. Very recently, however, patients have started to report symptoms that suggest a new allergic reaction from polyether impression materials.
Pauline Mittermüller +3 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).
Cecil E. Brown +5 more
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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.
G. Simkiss +5 more
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Dental Impression Materials: Reactor Response
Advances in Dental Research, 1988A review of the literature reveals an abundance of research papers which are focused on the physical properties and "simulated" clinical performance of impression materials. The three major developments during the past two decades were: (1) the introduction of the dimensionally stable addition silicones, (2) the development of dustless alginates, and (
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Objective Evaluation of Surface Microreplication by Dental Impression Materials [PDF]
Journal of Dental Research, 1978 Twenty-two materials, including 19 dental impression elastomers, were compared in their ability to replicate microscopic detail. Some polysulfide, silicone, and polyether materials performed well. Curiously, microscopic replication ability generally correlated inversely with that expected from the nominal consistency. The test method developed appears
Frederick J. Schoen +3 more
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Elastic and plastic properties of elastic dental impression materials
Dental Materials, 1985Abstract Strain in compression, compression set, stiffness and Shore A hardness of 36 brands of elastic dental impression materials have been determined. There was no correlation between compression set and the other properties tested, while statistically highly significant correlations were found between strain in compression, stiffness and Shore A ...
Werner J. Finger, M. Komatsu
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Canal atresia reconstruction with dental impression material
American Journal of Otolaryngology, 1999Medium-density viscosity dental impression material has recently been used after repair of an atretic canal to stent open the newly created external auditory canal for 2 weeks, followed by a hard acrylic stent. This may provide more benefits than traditional packing, but caution must still be used.
Warren Y. Adkins +2 more
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Thiokol as a dental impression material
Acta Odontologica Scandinavica, 1957About two years ago a new type of elastic impression material, based on the synthetic rubber Thiokol, was placed on the market. The material is supplied in two tubes, the contents of which are mixed to a homogeneous paste before use. At or above room temperature the mix will quickly polymerize to form a rubbery mass.
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The influence of dental gloves on the setting of impression materials
British Dental Journal, 1995The increased wearing of gloves during dental treatment has created new problems for general dental practitioners. One of these is the retarded set or total inhibition of addition silicones caused by natural latex gloves. This study was designed to test different gloves and impression materials in common use. Eight latex gloves, selected with different
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