taqa amer (102 Ergebnisse)

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Scientific Essay from the year 2011 in the subject Medicine - Dentistry, , language: English, abstract: This study aims to evaluate the effect of the addition of chlorohexidine gluconate (CHX) (powder) on some physical, mechanical properties and antimicrobial effect. In this study two hundred and forty samples of heat cured acrylic resin (Major base-2) were prepared and divided into different groups.Control group (without the addition of CHX) and experimental groups (with the addition of CHX (powder) at (1%, 2%, 3%)) to evaluate transverse strength, tensile strength, surface hardness, dimensional accuracy, deflection, residual monomer in addition to antimicrobial effect for heat cured acrylic resin before and after the addition of CHX (powder). Results showed a statistically significant difference at (p0.05) between control and experimental groups. The addition of CHX (powder) into heat cured acrylic resin increases its flexibility in addition to it's antimicrobial effect. Group of 1% CHX has the highest value of transverse strength, tensile strength, surface hardness and dimensional accuracy after control group. In addition to its antimicrobial effect, CHX increases the flexibility of heat cured acrylic resin. As the concentration of added CHX increased, the flexibility of heat cured acrylic resin specimens will be increased.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Scientific Essay from the year 2011 in the subject Chemistry - Anorganic Chemistry, grade: 3, University of Mosul (DBS), language: English, abstract: Some new metal(II) dichloride complexes with the ligands substituted nitrones of thegeneral formula [ML2Cl2], where M= Co(II), Ni(II), Cu(II), Zn(II) and Cd(II),L=OCH=CHCH=C-CH=N(O)C6H4X (X=H,p-CH3,CH3O,CH3CO,F,Cl,and Br) havebeen prepared and characterized by elemental analysis, IR,1H,13C NMR and Vis/Uvspectroscopy. The IR spectral data showed that the nitrone ligands coordinated withthe metal ion through the most active atom of the N-oxide to give square plannercoordinate (Cu,Ni,) complexes and (Zn,Cd,Co) tetrahedral complexes. No correlationwas observed between the N-O vibrations stretching hing frequency ni(N-O) of thecomplexes and the Hammet (s) constants.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Research Paper (postgraduate) from the year 2012 in the subject Medicine - Dentistry, University of Mosul (Department of Prosthetic Dentistry/ College of Dentistry), language: English, abstract: The total number of samples (45) were divided into three main groups cured according to three curing cycles (The standard short cycle, rapid was subdivided into three subgroup: The control group (without additives), samples prepared with the addition of Nigella Sativa , and samples prepared with the addition of Thyme oil. Color was measured for all the samples. Results were analyzed statistically by (Descriptive statistics, ANOVA and Duncan's multiple range test) and showed that both additives(Nigella Sativa and Thyme oil) showed significant changes in the color of denture base. conclusion Both additives (Nigella sativa and Thyme oil) showed significant changes in the color of acrylic resin denture base material. The addition of Thyme oil to the samples cured by the regular heat curing cycle showed color change (DeltaE=3.376) in relation to the standard (ADA) cycle which is an acceptable range in vitro.This study were to evaluate the effect of Nigella sativa and Thyme oil on The color of Acrylic Resin Denture Base Material.

Taschenbuch. Zustand: Neu. Neuware -Scientific Study from the year 2015 in the subject Medicine - Dentistry, , language: English, abstract: The aim of this study is to investigate the effect of recycled polymethylmethacrylate on dental wax. The influence of particles on melting point, hardness, flow and linear thermal expansion properties was examined.For this study, modeling wax was prepared by mixing 65 grams of paraffin with 30 grams of beeswax. Themodeling wax was prepared by melting the ingredients together under continuous stirring at the temperature 45°C inthe water bath, after that 20% of recycled polymethyl methacrylate added slowly to mixture at 45°C and rapid mixingtogether until obtaining a homogenous mixture. Then, the mixtures were poured into the molds and stored at roomtemperature for 24 hours prior totesting the melting point, flow, hardness and thermal expansion testing.BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt 12 pp. Englisch.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Scientific Study from the year 2015 in the subject Medicine - Dentistry, , language: English, abstract: The aim of this study is to investigate the effect of recycled polymethylmethacrylate on dental wax. The influence of particles on melting point, hardness, flow and linear thermal expansion properties was examined.For this study, modeling wax was prepared by mixing 65 grams of paraffin with 30 grams of beeswax. Themodeling wax was prepared by melting the ingredients together under continuous stirring at the temperature 45°C inthe water bath, after that 20% of recycled polymethyl methacrylate added slowly to mixture at 45°C and rapid mixingtogether until obtaining a homogenous mixture. Then, the mixtures were poured into the molds and stored at roomtemperature for 24 hours prior totesting the melting point, flow, hardness and thermal expansion testing.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Scientific Essay from the year 2012 in the subject Chemistry - Other, grade: 3, University of Mosul, course: Dental Chemistry, language: English, abstract: The present study was undertaken to extract ketamine powder from ketamine hydrochloride by precipitate ketamine. After that we examine the purity of this powder by infra-red (FTIR) and ultra-violet(UV) spectroscopy. ketamine gel in different concentrations was prepared ( 0.5 , 1 , 5 , 10 , 15 )% to evaluate the antinociceptive activity. ketamine powder was seen is pure and this show in infra-red and ultra-violet scanner. Ketamine gel at concentrations 0.5, 1, 5, 10,15) % produce antinociceptive in mice (5.6±2.2) (4.4±2.0) (8.2±4.3) (10.6±5.2) (8±2.1) second after 2 min respectively by using a hot plate test in comparison with control(2.4±2). The percentage of maximum possible effect (MPE) increased from (9.9) % in control group to (23.3) (18.3) (34.2) (44.2) (33.3)% respectively according to the concentrations of ketamine gel after 2 min . Purification of ketamine powder from ketamine solution and use as a gel to could be of value relief pain by topical application.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Research Paper (postgraduate) from the year 2012 in the subject Chemistry - Other, grade: 3, , language: English, abstract: Aims: To evaluate the effect of two prepared and commercial solution on surface roughness and tensile strength of highly impact acrylic denture base material Materials and Methods: The total number of specimens were one hundred and fifty. They were prepared from highly impact acrylic and subdivided into five groups for each solution (EDTA, Soda+H2O2, Lacalut, Corega and distilled water). Two laboratory tests were used for this research. Surface Roughness and tensile strength test. The surface roughness test specimens were constructed with dimensions (10×10×2±0.03mm) (length, width, and thickness respectively). According to ADA specification no.12 the tensile test specimens were constructed with dimensions 90×10×3±0.03mm (length, width, and thickness respectively). The immersion periods in this research are (2 day, 7 day and one month). ANOVA and Duncan multiple range test were used. The statistical results were considered significant at p 0.05. Results: the results showed that (soda+H2O2) has no significant change on the surface roughness and tensile strength of highly impact acrylic denture base material in (2d ay, 7 day, and 1 month) conclusion: (soda+H2O2) has the lowest effect on the surface roughness and tensile strength of highly impact acrylic denture base material in (2 day, 7 day, and 1 month)Key words: denture cleanser, highly impact, lacalut.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Research Paper (postgraduate) from the year 2012 in the subject Medicine - Dentistry, grade: 3, University of Mosul, language: English, abstract: Background and Objectives: Polymethyl methacrylate (PMMA) is currently the material of choice for denture base fabrication, that it has the advantages of good pigment wettability, high gloss and so on.Uses of natural stains (amaranth and vanilla) cheap and available in our country instead of the synthetic stains with heat cure acrylic resin denture base material for matching with natural human gingiva. Materials and Methods: Ninety samples were prepared of pink heat cure acrylic resin VertexTM material, fifteen samples with natural additives and seventy five samples with synthetic Vertex acrylic stainTM. The color of samples and gingival color of 24 healthy young participate were measured by Vita Easyshade device then compared between them. Statistical analysis was done by special designed program prepared for this study in Mat lab program 2010 that calculate the color difference between all the measurements that appeared only the (DeltaE) that 6.8. Results: Results showed that (DeltaE) 6.8 between some of natural and synthetic stains matched in relation to color of patients' gingiva, and some natural stains matched the color of the patients' gingiva. Conclusions: The results approved can be using the natural stains vanilla and amaranth instead of the synthetic Vertex acrylic stains that is clinically acceptable compared in relation to patients.Key Words: Natural stains, Vanilla, Amaranth, PMMA.

Taschenbuch. Zustand: Neu. Extraction of Pure Ketamine Powder and Study their Analgesic Effect as a Gel on Mice Using a Hot - Plate Test | Amer Taqa (u. a.) | Taschenbuch | 32 S. | Englisch | 2013 | GRIN Verlag | EAN 9783656382805 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Zustand: New.

Zustand: New.

Zustand: New.

Taschenbuch. Zustand: Neu. Neuware -The aims of this study were to detect the amount of fluoride released from the tested materials into three different storage solutions and to determine the change in the surface microhardness after storage.The amount of fluoride released from the three materials was significantly higher in acidic solutions than in neutral solutions. The Compomer released the highest amount of fluoride into the three storage solutions, while the least fluoride release was from the resin-modified glass-ionomer. The surface microhardness of the three tested materials reduced significantly after storage in neutral and acidic solutions compared to dry stored specimens. In acidic solutions, the surface microhardness was significantly lower than in neutral solutions. The Compomer showed the highest microhardness number values.Books on Demand GmbH, Überseering 33, 22297 Hamburg 112 pp. Englisch.

Zustand: Sehr gut. Zustand: Sehr gut | Sprache: Englisch | Produktart: Bücher.

Taschenbuch. Zustand: Neu. The Effect of pH on Fluoride Release, Surface Hardness of Glass Ionomer | The Effect of pH on Fluoride Release and Surface Hardness of Glass Ionomer Based Restorative Materials | Amer Taqa (u. a.) | Taschenbuch | 112 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783844308389 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Analgesic Effect of ketamine Gel on Human and Lab Animals | Amer A. Taqa (u. a.) | Taschenbuch | Englisch | 2014 | LAP LAMBERT Academic Publishing | EAN 9783659636677 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

Paperback. Zustand: Brand New. 200 pages. 8.66x5.91x0.46 inches. In Stock.

Paperback. Zustand: Brand New. 176 pages. 8.66x5.91x0.40 inches. In Stock.

Taschenbuch. Zustand: Neu. Neuware -The aims of this study are to investigate the effect of light intensity and curing time on the degree of conversion and amount of residual monomer released from poly-acid modified composite resin samples cured with QTH light curing unit.Single light cured poly-acid modified composite resin restorative material Glasiosite Caps (VOCO/ Cuxhaven, Germany) (n=130 samples divided to the groups ) exposed to different exposure times (10, 30 and 40 seconds) and at different light intensities (410 and 490 mw/cm ). The degree of conversion of poly-acid modified composite resin samples was investigated by Fourier transform infrared spectroscopy (FTIR). While the amount of residual monomer released from poly-acid modified composite resin samples was investigated through measuring the released residual monomer in doubled distilled water with (CECIL 2000) Ultraviolet visible spectrophotometer.Books on Demand GmbH, Überseering 33, 22297 Hamburg 128 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -This study aims to: 1- Modify Iraqi natural waxes by adding some natural and chemical materials in order to produce new experimental modelling waxes that can be used in dentistry. 2- Evaluate the new waxes by measuring the physical properties according to ADA specification No. 24 and ISO 1561. 3- Evaluate the manipulation of the prepared experimental modelling waxes in constructing maxillary completely edentulous record base.The results showed that the addition of 20% Na-CMC, 20% gum Arabic, and 20% rosin to hard paraffin led to decrease the maximum melting point, flow, thermal expansion and dimensional changes but increase the minimum melting point and hardness of the hard paraffin. The starch is the same as other additives except that it leads to decrease the minimum melting point but increase the maximum melting point and the thermal expansion of hard paraffin. The rosin is the most effective one on the properties of hard paraffin than other additives. It was concluded that the experimental modelling waxes:(hard paraffin beeswax) and (beeswax+starch) have the most nearest properties to control and ADA specification than other waxesBooks on Demand GmbH, Überseering 33, 22297 Hamburg 140 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -The work present in this book deals with preparation and characterization of new complexes which contain some transition ions ( Sc3+, Ti3+, V5+, Cr3+, Mn2+, Fe3+, Co2+, Ni2+, and Cu2+) and non transition metal ions ( Ba2+, Ca2+, Zn2+, Cd2+, and Sn2+) with ligands ( Thymol, Vanillin, o,m,p-Cresol, Salicylic acid, Methyl salicylaste, Guaiacol, Eugenol, and Menthol). The prepared complexes subsequently tried as dental filling passing the required tests of color, pH, setting time, consistency, compressive strength, film thickness, microlekage, and antibacterial. The complex [ calcium-guaiacolate] show superiority in this respect and it is hoped that this complex (as dental filling) establish a chemical binding with the calcium of the tooth.Books on Demand GmbH, Überseering 33, 22297 Hamburg 124 pp. Englisch.

Taschenbuch. Zustand: Neu. The Effect of Curing Time and Light Intensity on Composite Resin | The Effect of Curing Time and Light Intensity on the Degree of Conversion of Poly-acid Modified Composite Resin | Amer Taqa (u. a.) | Taschenbuch | 128 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783844310009 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. PREPARATION SOME NEW COMPLEXES THAT CAN BE USED AS THE DENTAL FILLING | Dental Chemistry | Amer Taqa (u. a.) | Taschenbuch | 124 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783843394048 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Prosthetic Application of Experimental Modelling Wax | Prosthetic Application of Experimental Modelling Wax with Some Additives | Amer Taqa (u. a.) | Taschenbuch | 140 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783844310498 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Paperback. Zustand: Brand New. 240 pages. 8.66x5.91x0.55 inches. In Stock.

Taschenbuch. Zustand: Neu. Neuware -This book was conducted to prepare a new herbal endodontic irrigant solution (Mixture of cocconut and bromelain) from coconut oil and bromelain enzyme and evaluate it's requirements through: antibacterial action, apical microleakage test, push out shear bond strength test, effectiveness of smear layer removal, biocompatibility,FTIR test , surface tension test, pH measurement, and the effect of storage time (6months) on the antibacterial action, pH, and surface tension of the solution. The (Mixture of cocconut and bromelain) irrigant had a superior antibacterial activity against E. faecalis than 2.5% and 5.25% NaOCl solution. Regarding microleakage and push out shear bond strength there were no significant differences between (Mixture of cocconut and bromelain) and (NaOCl +EDTA ) solutions. The (Mixture of cocconut and bromelain) solution induced a moderate removal of smear layer without any sign of erosion, while the complete removal of smear layer by (NaOCl + EDTA ) mostly accompanied with dentin erosion. The (Mixture of cocconut and bromelain) solution was less irritant, produced less edematous effect and earlier to heal when compared to NaOCl solution.Books on Demand GmbH, Überseering 33, 22297 Hamburg 200 pp. Englisch.

Taschenbuch. Zustand: Neu. preparation and evaluation of a novel herbal endodontic irrigant | Amer A. Taqa (u. a.) | Taschenbuch | 200 S. | Englisch | 2016 | LAP Lambert Academic Publishing | EAN 9783659807886 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Properties of Polymethyl-Methacrylate Powder Treated by Autoclave | The Evaluation of Certain Properties of Polymethyl-Methacrylate Powder Treated by [.] in Vitro Study | Amer A. Taqa (u. a.) | Taschenbuch | 176 S. | Englisch | 2016 | LAP LAMBERT Academic Publishing | EAN 9783659812132 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Effect of Temperature, Time and some Additives on Denture Base Material | The Effect of Temperature, Time and some Additives on some Physical and Mechanical Properties of Acrylic Denture Base Material | Amer Taqa (u. a.) | Taschenbuch | 168 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783844310085 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Neuware -The aims of this study were to evaluate the effect of change in time ,temperature (increase or decrease) and some additives(Nigella sativa and Thyme oil) on the degree of conversion, residual monomer release, transverse strength, indentation hardness, volumetric and color changes of the vertex heat cured acrylic resin.The results of the present study were analyzed statistically by (Descriptive statistics, ANOVA and Duncan¿s multiple range test). The results of this study showed that both changes in time and temperature showed significant changes in the degree of conversion, residual monomer, transverse strength, volumetric and color changes in the three curing cycles without additive. The used additives (Nigella sativa and Thyme oil) increased the conversion, increased the residual monomer release, showed a slight increase in volumetric change for the short cycle,(0.35-1.05) for the rapid simplified and for the regular curing cycles in comparison with their standard curing cycles without additives and color change, ¿E =3.376 (which is an acceptable change in vitro) for the Thyme oil additive to the regular heat curing cycle in comparison to the standard short cycle.Books on Demand GmbH, Überseering 33, 22297 Hamburg 168 pp. Englisch.