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A Way to Combat COVID-19 in Large Dental Institutions

Antonoff, Lisa R; Turkyilmaz, Ilser
PMID: 32996772
ISSN: 2158-1797
CID: 4616922

Enhancing Performance In The Simulation Laboratory:pilot Study

Chapter by: Lee, Ellen; Antonoff, Lisa; Sherwin, Gene
in: Clinical & Educational Scholarship Showcase by
[New York NY : NYU College of Dentistry. NYU Academy of Distinguished Educators], 2011
pp. 26-26
ISBN: n/a
CID: 151841

Macromolecular leakage beneath complete cast crowns. A 6-month in vitro investigation using microfluorimetry

Coleman, A J; Rickerby, H H; Antonoff, L R
OBJECTIVE: This investigation evaluated the leakage (diffusion) of lipopolysaccharide and dextran beneath cast-gold crowns luted with one of three cements. METHOD AND MATERIALS: Thirty extracted molars were prepared for crowns. Thirty crowns with access ports (facial or lingual) were cast in gold and luted to their preparations with zinc phosphate, glass-ionomer, or an adhesive resin cement (10 per group). Teeth and crowns with filters inserted in the ports were immersed in a solution of labeled macromolecules (tetramethylrhodamine isothiocyanate-labeled lipopolysaccharide and fluorescein isothiocyanate-labeled-dextran) and evaluated for leakage at 2 weeks and 1, 2, 3, 4, 5, and 6 months. Filters were retrieved and analyzed with microfluorimetry. RESULTS: No filters retrieved from any crowns demonstrated any detectable leakage, and all filters were negative for both dextran and lipopolysaccharide for all evaluation periods. CONCLUSION: For the 6 months of this investigation, zinc phosphate, glass-ionomer, and adhesive resin cements were equally effective at preventing leakage of detectable molecular concentrations of lipopolysaccharide and dextran to the level of the access ports in the absence of thermal or mechanical stress
PMID: 11820051
ISSN: 0033-6572
CID: 152644

Disinfection of impressions. Methods and effects on accuracy

Poulos, J G; Antonoff, L R
An understanding of the methods and mechanics of sterilization and disinfection is necessary to prevent bacterial cross-contamination. Since sterilization of impressions is not possible, because of the high temperature and time needed, disinfection is the method of choice. The most effective means of disinfecting impressions is to immerse them in disinfectant solution for 30 minutes. Most hydrophobic impression materials exhibit minimal distortion when disinfected in this manner. Irreversible hydrocolloid (alginate) and hydrophilic silicones distort when immersed and can be disinfected by spraying and placing in a sealed plastic bag for manufacturer's recommended time. Internal disinfection (replacing water with disinfectant before impression taking) is the method of choice for alginate, since it allows immediate pouring of the impression after removal from the oral cavity
PMID: 9256603
ISSN: 0028-7571
CID: 153247