scholarly journals Change of surface property of dental impression materials according to time and disinfection

2008 ◽  
Vol 40 (3-4) ◽  
pp. 188-191 ◽  
Author(s):  
Soo-Hwa Kim ◽  
Doug-Youn Lee ◽  
Kwang-Mahn Kim ◽  
Kyoung-Nam Kim
Keyword(s):  
Surface Property ◽  
Impression Materials ◽  
Dental Impression

Deficiencies in Silicone Impression for Crowns and Bridges

2017 ◽  
Vol 68 (10) ◽  
pp. 2317-2319
Author(s):  
Claudia Florina Andreescu ◽  
Oana Botoaca ◽  
Horia Mihail Barbu ◽  
Doina Lucia Ghergic ◽  
Anamaria Bechir ◽  
...  
Keyword(s):  
Dental Practice ◽  
Present Study Deal ◽  
Dental Crowns ◽  
Impression Materials ◽  
Dental Practitioners ◽  
Adequate Quality ◽  
Dental Impression ◽  
Single Crowns

There are many steps in fabrication of dental crowns and bridges at which an error can occur, and a technician can only fabricate a quality restoration if the impression itself is of adequate quality. All dental practitioners should have the ability to evaluate the quality of dental impression before sending to the laboratory. Elastomeric silicones (polysiloxane) are the most utilised impression materials in dental practice. The present study deal with the deficiencies of silicones dental impressions sent to commercial dental laboratories for fabrication of single crowns and bridges.

The use of vinyl polysiloxanes and quick setting epoxies in paleontology

1989 ◽  
Vol 63 (2) ◽  
pp. 256-256 ◽  
Author(s):  
Patrick Leiggi
Keyword(s):  
Fast Method ◽  
Impression Material ◽  
Impression Materials ◽  
Dental Impression

Quick setting dental impression materials are nothing new in the paleontology laboratory. In a paleontological note published in the Journal of Paleontology on “The Use of Dental Impression Material For Molding Macrofossils” (Quilty & Williams, 1975), the products Xantopren and Optosil were introduced as a simple and fast method of obtaining precision molds in 1-3 minutes. Since the mid-1970's these products have been replaced by vinyl polysiloxanes.

scholarly journals 3D Digital Impression Systems Compared with Traditional Techniques in Dentistry: A Recent Data Systematic Review

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1982 ◽  
Author(s):  
Marco Cicciù ◽  
Luca Fiorillo ◽  
Cesare D’Amico ◽  
Dario Gambino ◽  
Emanuele Mario Amantia ◽  
...  
Keyword(s):  
New Technologies ◽  
Digital Impression ◽  
New Device ◽  
Advantages And Disadvantages ◽  
Impression Technique ◽  
Impression Materials ◽  
Key Factor ◽  
Dental Impression ◽  
Digital Or

The advent of new technologies in the field of medicine and dentistry is giving improvements that lead the clinicians to have materials and procedures able to improve patients’ quality of life. In dentistry, the last digital techniques offer a fully digital computerized workflow that does not include the standard multiple traditional phases. The purpose of this study is to evaluate all clinical trials and clinical randomized trials related to the digital or dental impression technique in prosthetic dentistry trying to give the readers global information about advantages and disadvantages of each procedure. Data collection was conducted in the main scientific search engines, including articles from the last 10 years, in order to obtain results that do not concern obsolete impression techniques. Elsevier, Pubmed and Embase have been screened as sources for performing the research. The results data demonstrated how the working time appears to be improved with digital workflow, but without a significant result (P = 0.72596). The papers have been selected following the Population Intervention Comparison Outcome (PICO) question, which is related to the progress on dental impression materials and technique. The comparison between dentists or practitioners with respect to classic impression procedures, and students open to new device and digital techniques seem to be the key factor on the final impression technique choice. Surely, digital techniques will end up supplanting the analogical ones altogether, improving the quality of oral rehabilitations, the economics of dental practice and also the perception by our patients.

Cytotoxicity of Dental Impression Materials

2002 ◽  
Vol 69 (3) ◽  
pp. 350-355 ◽  
Author(s):  
S.-Y. Chen ◽  
C.-C. Chen ◽  
H.-W. Kuo
Keyword(s):  
Impression Materials ◽  
Dental Impression

A Replica Method for the Study of Marine Biofilms

1995 ◽  
Vol 75 (3) ◽  
pp. 759-762 ◽  
Author(s):  
S. J. Marrs ◽  
J. C. Thomason ◽  
M. J. Cowling ◽  
T. Hodgkiess
Keyword(s):  
Materials Science ◽  
Plant Morphology ◽  
Replica Method ◽  
Impression Material ◽  
Large Size ◽  
Impression Materials ◽  
Marine Biofilms ◽  
Dental Impression ◽  
Non Destructive ◽  
Standard Techniques

A replica method involving the use of a polyvinylsiloxane impression material with a resin cast, particularly suitable in the study of marine biofilms, is described. The technique has advantages over other methods in that it is quick, non-toxic, non-destructive and inexpensive. Replicas of critical-point dried eggcases of the dogfishScyliorhinus canicula(L.) (Elasmobranchii: Squaliformes) showed the replica to be true down to the size of bacteria. It was also possible to replicate larger areas such as patches of living barnacles on an intertidal rock.The study of marine biofilms often involves the use of destructive techniques such as conventional scanning electron microscopy (SEM), histology andin vacuospectroscopic methods (Baier & Meyer, 1986), so a single surface may not be examined repeatedly. Alternatively, the surface of interest may not be amenable to examination by standard techniques due to, for example, large size or incompatibility of the material of interest. In materials science the use of replica techniques to overcome such problems have been common (Goodhew, 1973), though techniques commonly involve the use of solvents (Loh, 1989) or silicone elastomers that may have a curing period of several hours (Gordon, 1984) and are consequently unsuitable for the study of biofilms. Scott (1982) reviewed the use of dental impression materials for field use in metallurgy and in recent years, dental impression materials have been used in the study of plant morphology (Green & Linstead, 1990). In this paper we consider the use of a hydrophilic polyvinylsiloxane impression material in the study of both microscopic and macroscopic marine biofilms.

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