Results 301 to 310 of about 633,913 (353)
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Rigidity of elastomeric impression materials
Journal of Oral Rehabilitation, 1989SummaryThe rigidity of an impression material should be less than a certain value in order that excessive forces are not required when taking impressions of undercut areas. Conversely, the impression should be sufficiently rigid to withstand the weight of stone whilst pouring the cast without distortion.This paper describes a method of determining ...
K. D. Jamani, H.J. Wilson, E. Harrington
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Impression Materials and Techniques
2018This chapter will emphasise the need to: Ensure your technician can feedback on defective impressions. Choose an appropriate impression material based on an understanding of its properties. Wash and disinfect impressions before sending them to the laboratory.
Robert Wassell +2 more
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Dental Impression Materials and Techniques
Dental Clinics of North America, 2017Dental impression making is the process of creating a negative form of the teeth and oral tissues, into which gypsum or other die materials can be processed to create working analogues. Contemporary dentistry generates new information every year and digital dentistry is becoming established and influential.
Jorge L Garaicoa +2 more
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Correction of defective impressions by the selective addition of impression material
The Journal of Prosthetic Dentistry, 1984R elining a deficient or otherwise defective impression after it has been completely relieved and vented is a commonly accepted procedure. Several studies have documented this technique and the resultant accuracy of the relined impressions.1-4 A similar technique is the widely used and accepted putty/wash impression system.i-6 However, the accuracy of ...
Bomberg Tj, Hatch Ra
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A review of modern impression materials*
Australian Dental Journal, 1978Abstract— —A number of new elastic impression materials have been developed over the past few years. The working time, setting time, elasticity at set, permanent deformation, dimensional change on setting and long‐term stability were determined for several of these impression materials.
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A comparison of elastic impression materials
The Journal of Prosthetic Dentistry, 1975T ests for accuracy and other characteristics of elastic impression materials generally fall into one or more categories. These are: (1) Linear tests which measure the material itself (usually unidimensional) .le5 (2) Tests which depend upon the formation and measurement of gypsum dies made from the impression materials.
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Impression Material Selection According to the Impression Technique
2018While making an impression in an edentulous jaw, the most important problem is the degree of mobility of the soft tissues. This situation changes due to the thickness and hardness of the tissues, the amount of the loading, and the anatomical location. Since supporting areas display some changes while making an impression and the tissue response will be
Yasemin Kulak Özkan, Yılmaz Umut Aslan
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Comparison of impression materials for direct multi-implant impressions
The Journal of Prosthetic Dentistry, 2000Given that meticulous implant prosthodontic procedures are recommended to obtain the best possible intraoral fit, impression materials that are suitable for use with a direct impression technique warrant further investigation.This in vitro study compared the amount of torque required to rotate a square impression coping in an impression and evaluated ...
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Accuracy of impressions made with elastic impression materials
The Journal of Prosthetic Dentistry, 1960Abstract The Thiokol and silicone impression materials were investigated in a laboratory study to determine their best means of application to removable partial denture impressions. Several methods were evaluated and a technique which produced reliable, consistent results was evolved.
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Considerations for adhesion of impression materials to impression trays
The Journal of Prosthetic Dentistry, 1988Bomberg Tj +3 more
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