- ALGINATE IMPRESSION MAKING SERIAL
- ALGINATE IMPRESSION MAKING MANUAL
- ALGINATE IMPRESSION MAKING SOFTWARE
ALGINATE IMPRESSION MAKING MANUAL
Manual spatulation, an automated spinning bowl, a centrifugal mixer and a vacuum mixer were evaluated for the resulting porosity in the set alginate. The aim of this study was twofold: determine whether bubble formation in alginate is influenced by the sequence of water/powder addition prior to mixing, and to compare 4 different mixing techniques. Previous studies have found that variations in mixing technique can influence the porosity content of alginate impression material. McDaniel, Thomas F Kramer, Robert T Im, Francis Snow, Dallin Impressions should be disinfected to eliminate the risk of cross contamination.Įffects of mixing technique on bubble formation in alginate impression material. Impression materials may act as a vehicle for the transfer of microorganisms from the patient's mouth to dental personnel. For those specimens immersed in sterile water for 10 minutes (control group), the number of microorganisms eliminated was increased from 62% to 90% compared to those left untreated. 05) than the other 2 rubber impression materials used in the study.
For those undisinfected specimens, the results showed that untreated alginate impressions appear to carry more microorganisms (P <. The disinfectants were able to completely eliminate microorganisms carried by the impressions. The dilutions were aerobically incubated at 37 degrees C for 48 hours.
ALGINATE IMPRESSION MAKING SERIAL
Serial dilutions of the suspension were carried out and counted by the Miles-Misra technique (inoculation on Columbia blood agar for quantification). For each impression, 6 specimens were dissected from 6 different locations and exposed to 6 different regimens: 1 was left untreated, 1 was immersed in sterile water for 10 minutes to serve as a control, and the remaining 4 specimens were exposed to 4 different disinfection treatments (Dimenol, Perform-ID, MD 520, and Haz-tabs). For each participant, 3 successive impressions were recorded in the different impression materials. A total of 45 impressions were taken from the maxillary dentate arches of 15 dental staff participants at the Department of Dentistry, Prince Rashid Hospital, Irbid, Jordan. The aim of the current study was to determine the effectiveness of 4 different disinfectant solutions on 3 commonly used impression materials-alginate, polyether, and polyvinyl siloxane-to establish a protocol for disinfection of these impression materials after clinical exposure and prior to handling in the dental laboratory. PMID:27826387Īntimicrobial effect of 4 disinfectants on alginate, polyether, and polyvinyl siloxane impression materials.Īl-Jabrah, Osama Al-Shumailan, Yousef Al-Rashdan, Manhalĭental impressions often carry microorganisms that may cause cross infection from patients to dental staff. CONCLUSION It was possible to obtain more mechanically stable alginate impression materials by using the custom-made proportioning unit. To verify the efficiency of the system, powder and powder/water mixing were weighed and significant decrease was observed. However, a decrease in the standard deviation of tested groups was observed when the customized machine was used. RESULTS No statistically significant differences in modulus of elastisity (P>0.3), tensional/compresional strength (P>0.3), resilience (P>0.2), strain in failure (P>0.4), and tear energy (P>0.7) of alginate impression materials were seen.
The experimental data were statistically analyzed using one way ANOVA and Tukey test at the 0.05 level of significance. Compression tension and tear tests were conducted to determine the mechanical properties of alginate impression materials. MATERIALS AND METHODS The variation of coefficient in the tested groups was compared with the manual proportioning. With this device, it was ensured that proportioning operation could arrange weight-based alginate impression materials.
ALGINATE IMPRESSION MAKING SOFTWARE
In this study, an automatic proportioning unit for the alginate mixer and controller software were designed and produced for a new automatic proportioning unit.
PURPOSE Alginate mixers available in the market do not have the automatic proportioning unit. Empirical study of alginate impression materials by customized proportioning system
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