Amer A Taqa

Amer A Taqa
University of Mosul · College of Dentistry

PhD in Inorganic and Dental chemistry

About

168
Publications
102,211
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
236
Citations
Introduction
Amer A. Taqa: Professor at Dental Basic Science, College dentistry, Mosul University, Iraq. Have PhD degree in Dental chemistry. He has published more 100 researches papers in national and international academic journals and authored 22 books. His research interests include dental chemistry, medical chemistry, and inorganic chemistry. He is editorial member in more than 140 international journals. He Nominated as a member of the organizing committees for a number of international conferences
Additional affiliations
August 1993 - present
University of Mosul
Position
  • Professor
August 1993 - present
University of Mosul
Position
  • Professor
August 1993 - June 2017
University of Mosul, College of Dentistry
Position
  • Professor
Education
August 1993 - June 2017
University of Mosul
Field of study
  • Inorganic chemistry, Dental chemistry

Publications

Publications (168)
Article
Full-text available
Proteolysis enzyme therapy plays a key role in treating a wide range of nutritional and genetic diseases. Serratiopeptidase is a proteolytic enzyme with pain-relieving and anti-inflammatory effects. It is applied topically to guarantee that the enzyme reaches the therapeutic activity. A total of fifteen healthy adult male white mice were used in th...
Article
Full-text available
Objectives: To analysis the benefit effect of coconut as natural mouthwash. Methods: This study depended on using of coconut as a main constituent in making a natural mouthwash solution. It examined some physical, chemical, biological and antibacterial properties of this mouthwash by surface tension test, pH measurement and antibacterial property o...
Article
This study was designed to assess the effects of storage of light-cured orthodontic adhesives in Magnetic Field (MF) on its degree of conversion (DC %). Heliosit and Biofix orthodontic adhesives were used in this study. They classified according to MF exposure into two groups (n=10 per group), with (MG) and without exposure (CG). MF was applied emp...
Article
This study was designed to assess the effects of storage of light-cured orthodontic adhesives in Magnetic Field (MF) on its degree of conversion (DC %). Heliosit and Biofix orthodontic adhesives were used in this study. They classified according to MF exposure into two groups (n=10 per group), with (MG) and without exposure (CG). MF was applied emp...
Article
Full-text available
1,3,5-Trimethylpyridinium iodide was synthesized,and structure was investigated by X-ray crystallography
Article
Full-text available
Aims: to evaluate the biological response to nano sized biphasic hydroxyapatite and tricalcium phosphate synthesized from eggshell. Materials and methods: Egg shell burned in furnace at 1000 C° for 1 hour. The part of resultant powder was treated chemically with phosphoric acid to form HA, other part of heated egg shell treated with nitric oxide an...
Article
Full-text available
Aims: to evaluate the osteogenic regeneration ability of new nanometric biphasic hydroxyapatite and tricalcium phosphate (80/20) BLUE BONE. Materials and methods: twenty domestic rabbits were used in the present study with two defects were created in the rabbit's femur, one filled with BLUE BONE material and the other defect were left empty as nega...
Article
Full-text available
Many attempts have been made enhancing properties of PMMA denture base material. Adding fillers to PMMA was a commonly used method to improve physical and mechanical properties. To estimate the effects of incorporating recycled polymethylmethacrylate with a different percentage with conventional heat-cured acrylic resin on some properties of heat-c...
Article
Full-text available
This study evaluate the fluoride release from different types of composite resins stored in different media.
Article
Full-text available
Aims:To evaluate the histological effect of the gold alone and gold with nanohydroxyapitite(nHA ) of (eggshell and seashell) on healing in the rabbit’s mandibular bone . Materials and Methods: twelve male rabbit were assigned to form four experimental groups and three animals in each groups, small groove was done in the rabbits mandibular bone: Gro...
Article
Full-text available
Synthesis and structure characterization of Pd (II) complexes with some Alcoholic ligand and their biological activities
Article
Full-text available
Complexes of copper (II) and Nickle(II) with Schiff base derived from vanillin and aromatic amines.
Article
Full-text available
Using the cinnamon plant as a vermicide
Article
Full-text available
Evaluation levels science for Iraqi and foreign students in Chemical Lecture
Article
Full-text available
complexes of diaxo urnium (VI) nitrate
Article
Full-text available
The effect of oil piper Cubeba on the cariogenic bacteria( Streptococcus mutans and staphylococcus
Article
Full-text available
Application of solvent multi-parameter equations to unravel solvent effects on the HNMR spectra of some Hydroxyphenyl nitrones
Article
Full-text available
Solvent effects on the HNMR spectra of some substituted and.,N-Diarylnitrones
Article
Solvent effect on alpha- proton chemical shifts of α, N-diarylnitrones,
Article
Full-text available
Infrared spectra of some urianyl nitrate complexes
Article
Full-text available
Synthesis and Characterization of some dioxouranium
Article
Full-text available
Application of Multivariate Equations for Solvents to Interpret the Effects of Solvent on the Nuclear Magnetic Resonance Spectrum of Alpha (2-Hydroxy-1-Phenyl) Nitron Compounds
Article
Biological studies of a new mono and hetro Ni (II) and Pt (II) Complexes containing phoshine derivatives
Article
Full-text available
Keywords: Artificial Saliva; Sorption; Dental Composite Aims: To evaluate the artificial saliva sorption for three different types of light-activated composite resin. Materials and Method: A total of thirty six specimens (bars) 3 x 8 x 15) mm were prepared from three different types of light activated composite Resin. (Tetric N-ceram, Ivoclar-vivad...
Article
Full-text available
Abstract: Objectives: Compare tensile and transverse strength of new copolymers for denture base. Materials and methods: The specimens were prepared from heat cured acrylic resin with three types of additives: Acryester B, Ethoxycarbonylethylene, and Propenoic acid at a percentage of 5% and 10%. The tensile and transverse strains were tested, recor...
Conference Paper
Full-text available
Objectives: Compare tensile and transverse strength of new copolymers for denture base. Materials and methods: The specimens were prepared from heat cured acrylic resin with three types of additives: Acryester B, Ethoxycarbonylethylene, and Propenoic acid at a percentage of 5% and 10%. The tensile and transverse strains were tested, recorded and co...
Conference Paper
Full-text available
Objectives: The aim of this study was to evaluate chemical and topographical changes in the intaglio zirconia surface induced by chemical conditioning solutions using FTIR and SEM analysis. Material and method: twelve plates for each FTIR and SEM tests from each zirconia materials (UPCER A HT White, BruxZir® Solid Zirconia, and Copran® Multilayer),...
Conference Paper
Full-text available
Objective: To evaluate the effects of luteolin nanoparticles on the process tooth socket healing in rabbits. Design: This study comprised five rabbits randomly assigned to control animal and experimental animals. Immediately after the extraction of an upper maxillary incisor, the alveolar sockets of experimental animals were treated with topical lu...
Article
Full-text available
Alkyl and phenyl side chain amino acid were reacted with benzoyl chloride and phthalyl anhydride to give benzoyl amino acids and phthalyl amino acids respectively. Materials and methods: These compounds were tested for their local anesthetic effect as ointment using Hot-Plate technique in mice and as sodium salt solution using Pin-Pricking techniqu...
Article
Full-text available
Purpose: To prepare a new calcium based intracanal medicament from egg shell and sea shell powder mixed with pure coconut oil then evaluate the sealing ability of the new prepared materials and compare the result with Metapex intracanal medicament
Article
Full-text available
This study was conducted to evaluate the effect of a chemically conditioning intaglio zirconia surface onmicro-shear bond strength of the dual cure resin cement bonded to the four types of yttria stabilized tetragonal zirconia (Y-TZP) ceramics as well as the effect of such conditioning on the topography of that surface. Fifteen plate for (M-SBS tes...
Article
Full-text available
Objective: This study was to evaluate the effect of incorporation of different concentrations of synthesized Nano-structured Hydroxyapatite particles on the mechanical properties of Self-Adhesive Resin Cement (SARC). Methods: Nanohydroxyapatite was prepared by sol-gel method. The nHAp was prepared at four different concentrations (0 ,2, 4 and 6%) w...
Article
Full-text available
This open-access article is distributed under the terms of the Creative Commons Attribution Licence http://creativecommons.org/licenses/by/2.0/uk/legalcode, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. Acta Crystallographica Section E: Structure Reports Online is t...
Article
Full-text available
This open-access article is distributed under the terms of the Creative Commons Attribution Licence http://creativecommons.org/licenses/by/2.0/uk/legalcode, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. Acta Crystallographica Section E: Structure Reports Online is t...
Article
Objectives: Compare tensile and transverse strength of new copolymers for denture base. Materials and methods: The specimens were prepared from heat cured acrylic resin with three types of additives: Acryester B, Ethoxycarbonylethylene, and Propenoic acid at a percentage of 5% and 10%. The tensile and transverse strains were tested, recorded and co...
Article
Objective: To evaluate the effects of luteolin nanoparticles on the process tooth socket healing in rabbits. Design: This study comprised five rabbits randomly assigned to control animal and experimental animals. Immediately after the extraction of an upper maxillary incisor, the alveolar sockets of experimental animals were treated with topical lu...
Article
Objectives: The aim of this study was to evaluate chemical and topographical changes in the intaglio zirconia surface induced by chemical conditioning solutions using FTIR and SEM analysis. Material and method: twelve plates for each FTIR and SEM tests from each zirconia materials (UPCERA HT White, BruxZir® Solid Zirconia, and Copran® Multilayer),...
Article
Full-text available
oral disease, a relevant public health problem, is considered a common disease of many people. In this respect, vitamins may be a modifying factor in the progression and healing of the oral diseases and promoting oral and dental health. Vitamins have been recommended as nutrients for prevention and treatment of some pathological conditions, such as...
Article
Full-text available
oral disease, a relevant public health problem, is considered a common disease of many people. In this respect, vitamins may be a modifying factor in the progression and healing of the oral diseases and promoting oral and dental health. Vitamins have been recommended as nutrients for prevention and treatment of some pathological conditions, such as...
Book
Full-text available
The Effect of Curing Time on the Degree of Conversion of Poly-acid Modified Composite Resin (Compomer) “An In Vitro study”
Book
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, Germa...
Article
Full-text available
Background To prepare new calcium based intracanal medicament from egg shell and sea shell powder mixed with pure coconut oil then evaluate the antibacterial activity of the new prepared materials and compare the result with Metapex intracanal medicament. Materials and Methods Calcium based intracanal medicament have been prepared from local egg sh...
Article
Full-text available
Aim of the study: Evaluation the flow of a new experimental modeling waxes. Materials and methods: synthesis of one hundred twenty (120) samples of different modeling waxes by mixing different percentages of local natural waxes (hard paraffin, soft paraffin and beeswax) and additives (starch, gum Arabic, rosin and Na-CMC (Na-carboxymethylcellulose)...
Article
Full-text available
Aim: To evaluate the effect of change in time, temperature (increase or decrease) on the degree of conversion and residual monomer release of the vertex heat cured acrylic resin. Material and Methods: The total number of samples (176) were divided into three main groups cured according to ADA and three curing cycles with modifications in time and t...
Article
Full-text available
The study aims to evaluate the effect of curing time on the degree of conversion of polyacid-modified composite resin. Materials and methods: fifty samples were prepared and divided randomly to five groups according to curing time. The FT-IR were measured by using FT-IR Spectrometer. Results: Analysis of Variance(ANOVA) and Duncan multiple range te...
Article
Full-text available
Aim: Aims of this research to study the effect of surface area on retention of complete denture. Materials and methods: Oral examination clinically, some properties of the physical and chemical of human unstimulated saliva have been evaluation. They constituted in three groups (25 in each the first and the third group) and (50 in the second group)....
Article
Full-text available
Conflicting results are often reported in literature when the effect of exposure intensity on the dental materials. This may be explained through the use of conventional QTH LCU and Intensity-changeable device. Exposure intensity of visible light are important factors in resin polymerization. The aims of this study are to investigate the effect of...
Article
Full-text available
Aims to evaluate the effect of light intensity on the degree of conversion of polyacid-modified composite resin. Materials and methods: Fourteen samples were prepared and divided randomly to four groups according to Light Intensity. Fourier Transform Infrared Spectrometer (FTIR) is used in order to measure the degree of conversion. Results and disc...
Article
Full-text available
The aims: To determine the effect of some chemical materials on the water powder ratio of dental stone. Material and Methods: Three types of chemical materials (rosin, nigella stavia oil and sodium lauryl sulfate) were incorporated into three kinds of type III dental stone (Zeta, Elite and Dental stone) at four concentrations (0.5%, 1%, 1.5% and 2%...
Article
Full-text available
Folate is required for metabolic processes and neural development. The aim of this paper was to review the effects of folic acid supplementation before and throughout pregnancy on fetal development, summarize research needs with a focus on studying the effects of correct dosage folic acid. Methods: Related publications were reviewed to determine an...
Article
Full-text available
Some new diorganotin(1V) dichloride R,SnCl,.L, where R = Me, Bu, formula CH=N(O)C,H,X (X = H, p -CH,, CH,O, CH,CO, F, C1 or Br) have been prepared and characterized by elemental analyses, and IR, 'H and I3C NMR spectroscopy. The spectral data show that the nitrone ligands coordinate with tin through the most active oxygen atom of the N-oxide to...
Article
Full-text available
Introduction: Addition of filler to poly methylmethacrylate (PMMA) matrix may enhancethe mechanical properties of the polymerized resin, but there is a great concern about the stability of PMMA in aqueous environments, this is mainly because the filler matrix interface provides paths of facilitated diffusion similar to grain bound diffusion.
Article
Full-text available
Background: Polymethylmethacrylate (PMMA) has been the most popular material for the construction of denture bases since 1937. This is largely due to its favourable although not ideal characteristics. Aims of the study: To study the structural characterisation using Fourier transform infrared (FTIR) of adding aluminium oxide (Al 2 O ) and silver na...
Article
Full-text available
Chemo Mechanical Caries Removal (CMCR) is an effective alternative method of caries removal as they cause less pain, discomfort and less demand of anesthesia when compared with conventionalcaries removal. The aim of this study was to estimate the antimicrobial efficacy of the newly prepared papa in-base caries removing agent. Materials and Methods:...
Article
Full-text available
The purpose of this study was to evaluate in vivo the biocompatibility of newly prepared root canal biosealer (ZOGU) after subcutaneous implantation in rabbits Materials and Methods: Three materials comprised the groups: group I-tg sealer ZOE base root canal sealer served as positive control. Group II-Empty polyethylene tube (without sealer materia...
Article
Full-text available
The purpose of this study was to evaluate in vivo the biocompatibility of newly prepared root canal biosealer (ZOGU) after subcutaneous implantation in rabbits Materials and Methods: Three materials comprised the groups: group I-tg sealer ZOE base root canal sealer served as positive control. Group II-Empty polyethylene tube (without sealer materia...
Article
Full-text available
Aims: To evaluate the efficacy of a newly prepared endodontic irrigant solution, against E. faecalis.Materials and Methods: Sixty human extracted single rooted teeth samples were prepared by using protaper NiTi rotary system. The apical foramen of each sample was sealed by acrylic resin on the apical 3mm. Each root was embedded in silicon impressio...
Article
Full-text available
The objective of this study is to prepare and study chemical compounds for cleaning denture from locally available materials. The chemical compounds solutions were (sodium bicarbonate with alum), (sodium bicarbonate with citric acid), (sodium bicarbonate with apple vinegar), (sodium bicarbonate with clear commercial vinegar), (sodium bicarbonate wi...
Article
Full-text available
Some new metal(II) dichloride complexes with the ligands substituted nitrones of the general 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) have been prepared and characterized by elemental analysis, IR,1H,13C NMR and Vis/Uv spectroscopy. The IR spectral data showed...
Article
Full-text available
The aims of this study are to modify heat cured acrylic resin denture base material into a flexible heat cured acrylic resin material by using additives {Flavoring agents (Caramel, Banana)}, and Plasticizer and to study some of its physical and mechanical properties. A pilot study has been done by preparing fifty samples of heat cured acrylic resin...
Article
Full-text available
Aims: the study was conducted to modify heat cured acrylic resin denture base material with additives [flavoring agents (caramel, banana)], and plasticizer into a flexible heat cured acrylic resin as a Flexite thermoplastic material. Methods: One hundred ninety-five samples of heat cured acrylic resin (HcAr) that consist of control group and three...
Article
Full-text available
Aims: This study aims to evaluate the effect of (MRI) on physical, and mechanical properties of acrylic resin denture base materials. Materials and Methods: one hundred and ten samples were the total no. of samples, samples were divided into two groups each group contain two fifty five, the 1st sample group pink and 2nd groups clear heat cured acry...
Article
Full-text available
To determine the effect of some chemical materials on the compressive strength and surface hardness of dental stone. Material and Methods: three types of chemical materials (rosin, nigella stavia oil and sodium lauryl sulfate) were incorporated into three kinds of type III dental stone (Zeta, Elite and Dental stone) at four concentrations (0.5%, 1%...
Article
Full-text available
This particular research study influence and effects of MRI field on spectra analysis for 1 H and 13 C of Poly methylmethacrylate and comparing this effects before and after exposure to (MRI) field. The results showed that comparing chart for 1 H and 13 C analysis for different samples of Polymethyl-methacrylate Pink and clean, no significant for d...
Article
Full-text available
Aims: The aim of the study is to evaluate the effect of addition of some natural and beneficial oils (Castor oil, Grape seed oil and Fenufreek oil) in different concentrations (1.5%,2%,2.5%) on some properties (chemical structure, residual monomer, transverse strength and color change) of cold cured acrylic resin. Materials & Method: One hundred sa...
Article
Full-text available
Aims : To evaluate the biocompatibility of nano – sized additives (Al 2 O 3 , ZnO and Ag) with different concentrations (0.5 % , 1% and 2%) by Weight to flexible denture base material by mean of cell reaction or histopathological changes of the subcutaneous tissue of the rabbit to implant material. Materials and Methods : Nine male rabbits were use...
Article
Full-text available
Aim of the study: The aim of this study is to investigate the effect of recycled polymethylmethacrylate particlesaddedat the melting point,hardness, flow and linear thermal expansion properties. Material and Method: Modeling wax was prepared by mixing 65 grams of paraffin with 30 grams of beeswax. The modeling wax was prepared by melting the ingred...
Article
Full-text available
The Aims: of the current study are to prepare new calcium based cement from seashell and assess the antibacterial viability of the new material and compare the result with biodentine cement. Materials & Methods: calcium phosphate based cement have been synthesized from single species of seashell in a form of tricalcium phosphate and hydroxyl apatit...
Article
Full-text available
To determine the effect of some chemical materials on the compressive strength and surface hardness of dental stone. Material and Methods: three types of chemical materials (rosin, nigella stavia oil and sodium lauryl sulfate) were incorporated into three kinds of type III dental stone (Zeta, Elite and Dental stone) at four concentrations (0.5%, 1%...
Article
Full-text available
ABSTRACT Aims: The study was conducted to evaluate the pH and antimicrobial properties of newly prepared calcium based cement, polycarboxylate cement and biodentine material. Methods: The new cement was prepared from egg shell, for pH measurements, 9 standard discs (6 mm in diameter and 2 mm in thickness) were prepared for each material, The antiba...
Article
Full-text available
Aims : To evaluate the biocompatibility of nano – sized additives (Al2O3, ZnO and Ag ) with different concentrations (0.5 % , 1% and 2%) by Weight to flexible denture base material by mean of cell reaction or histopathological changes of the subcutaneous tissue of the rabbit to implant material . Materials and Methods : Nine male rabbits were used....
Article
Full-text available
Two types of plaster (Al-Ahliyah Plaster and Plaster of Paris) were used as an experimental group and two types of stones (Elite and Silky Rock) represented the control group. In addition, five chemical materials as additives were chosen in this study (gum Arabian, rosin, potassium sulfate, borax and ferric oxide) at 0.25% concentration. One or two...
Article
Full-text available
The aim of the present study was extract pure ketamine powder from ketamine hydrochloride solution. Different concentrations of ketamine gel were prepared. Materials and methods: Ketamine powder was prepared from precipitation of ketamine hydrochloride solution and characterized by Infrared Spectroscopy (IR), Ultraviolet (UV), Micro elemental analy...