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Article
Effect of casein phosphopeptide-amorphous calcium phosphate on surface roughness of a silorane-based and methacrylate-based composite resin (In vitro comparative study)

Author: Baydaa Hussein بيداء حسين
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2012 Volume: 24 Issue: 3 Pages: 106-112
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: When using a fluoridated agent for caries-preventive intervention, the clinician should be careful not toallow the agent to come into contact with the composite restorations since topically applied fluorides were found toinduce adverse effects on the morphologic characteristics and composition of composite restorations. A newremineralizing agent "MI Paste" and its fluoridated form "MI Paste Plus" based on Recaldent technology (CPP-ACP)were developed. This study was conducted with the aim of assessing the effect of these new remineralizing agentson surface roughness of two types of composite resin materials.Materials and Method: Cylindrical specimens 12mm in diameter and 2mm in height were prepared from two types ofcomposite resin materials: Filtek™ P90 (a silorane-based composite material) and Filtek™ Z350 XT (a methacrylatebasednanofill composite material). Each specimen was cured against a celluloid strip in a specially designedcylindrical mold using a QTH light curing unit for 40 seconds. Forty specimens were prepared for each compositetype and subdivided into four subgroups of ten specimens each: Subgroup 1: without treatment, dry-stored in anincubator at 37ïC for one week (control subgroup), Subgroup 2: without treatment, stored in deionized water in anincubator at 37ïC for one week, Subgroup 3: treated with MI Paste once daily for one week, and Subgroup 4:treated with MI Paste Plus once daily for one week. Surface roughness of the specimens was obtained with a surfaceprofile testing machine, which used the roughness average (Ra) to assess surface changes. Several measurementswere taken for each specimen and the mean value of these measurements on one specimen was regarded as theRa of that specimen. The mean Ra value of each subgroup was then calculated.Results: The results of this study showed statistically non-significant differences among the different subgroups ofFiltek™ P90 composite resin material. Concerning Filtek™ Z350 XT composite resin material, the results showed astatistically highly significant difference in surface roughness between the subgroup stored in deionized water andthe control one, with statistically non-significant difference between the subgroups treated with MI Paste and MIPaste Plus and the control subgroup. Comparison of significance between the corresponding subgroups of bothcomposite types revealed statistically non-significant differences except for subgroup 2 which showed a statisticallysignificant higher surface roughness in Filtek™ Z350 XT than Filtek™ P90.Conclusions: The daily application of the MI Paste and MI Paste Plus for one week had non significant effect onsurface roughness of the silorane-based composite resin material Filtek™ P90. On the other hand, the application ofthese agents caused surface smoothening of the nanofilled methacrylate-based composite resin material Filtek™Z350 XT.


Article
Gingival Condition and Enamel Defect Among Secondary School Female Students in Kirkuk City/Iraq

Authors: Jihan A. Ibrahim --- Baydaa Hussein
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2018 Volume: 30 Issue: 1 Pages: 80-85
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Gingivitis is one of the most common and widely spread oral diseases in adolescents after dental caries occur in both developed and developing countries. Dental plaque is the main etiological factor of gingivitis. Another oral problem is enamel defect.The aim of this study was to estimate the oral hygiene (dental plaque), and determine the prevalence and severity of gingivitis and enamel defects among 16-17 years old secondary school female students in urban areas of Kirkuk city/Iraq.Materials and methods: A representative sample included in this study consisted of 750 secondary school female students distributed into 387 for the age sixteen and 363 for the age seventeen, they were selected randomly from different female secondary schools in the urban areas of Kirkuk city. Dental plaque was assessed using plaque index of Silness and Loe (1964). The gingival health condition was assessed using gingival index of Loe and Silness (1963), while, enamel anomalies was determined following the criteria of WHO.Results: The mean value of plaque index for the total sample was 0.92±0.02. The prevalence of gingivitis was (88.53%) and the mean value of gingival index was 0.90±0.02. Regarding age, the mean value of gingival index increased with age with statistically no significant difference (P>0.05). There was a strong positive and statistically highly significant correlation between plaque and gingival indices for total sample and for both ages (P<0.01). Regarding enamel defects, the prevalence of enamel anomalies among the total sample was 40.27% and diffused opacity was the most prevalent type of enamel anomalies, while, the least prevalent type was diffused opacity and hypoplasia. The lower 1st molars were the most affected teeth by enamel defects.Conclusion: In present study, the high prevalence of gingivitis among secondary school females indicated the need for either a school or public educational programs to improve the knowledge and attitude towards proper oral hygiene practices


Article
Effect of air abrasion treatment on microleakage of a pit and fissure sealant (in vitro study)

Author: Dr. Baydaa Hussein ,B.D.S, MSc. * د.بيداء حسين
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2007 Volume: 4 Issue: 2 Pages: 162-168
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

The aim of this study was to compare in vitro the microleakage of a pit and fissure sealant after different enamel surface treatments: (1) acid etching only, (2) air abrasion only, and (3) air abrasion followed by acid etching.Thirty sound human upper premolars were used in this study. The teeth were divided into three groups according to the type of treatment prior to sealant application: Group 1 (in which the occlusal surface was etched with 37% phosphoric acid gel for 30 seconds), Group 2 (in which the occlusal surface was air-abraded for 10 seconds with sodium hydrogen carbonate powder), and Group 3 (in which the occlusal surface was air-abraded as in group 2 and then acid etched as in group 1). Then a light-cured pit and fissure sealant (Fisseal, Promedica, Germany) was applied to the central fissure in the occlusal surface of each tooth and light cured for 20 seconds. Then the teeth were thermocycled between 5ºC and 55ºC for 10 cycles, immersed in 0.5% basic fuchsine dye for 24 hours at room temperature, embedded in auto-polymerizing acrylic resin, sectioned longitudinally bucco-lingually, and examined under a stereomicroscope for dye penetration.The results of this study showed that the highest mean of microleakage scores was in group 2 (air abrasion group), while the lowest mean of microleakage scores was in group 3 (air abrasion + acid etching), with statistically highly significant difference (p<0.01) between group 1 and group 2, and between group 2 and group 3, with statistically non-significant difference between group 1 and group 3 (p>0.05).Air abrasion treatment prior to sealant application was not effective in reducing microleakage and should be followed by acid etching.


Article
Effect of tooth brushing technique on oral hygiene in patients with fixed orthodontic appliances

Authors: Dheaa Hussein ضياء حسين --- Baydaa Hussein بيداء حسين --- Manhal Abdul-Rahman منهل عبد الرحمن
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2005 Volume: 17 Issue: 1 Pages: 101-104
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: This study was conducted to find whether the brushing technique (horizontal technique versus roll technique) would affect the oral hygiene of orthodontic patients or not.Materials and methods: This study was conducted on fifteen patients who were undergoing orthodontic treatment and were submitted to the clinical trial by changing the tooth brushing maneuver throughout the orthodontic treatment course from the patient’s own brushing maneuver to the horizontal and then to the roll brushing technique.Results: The results showed that the roll technique had a superior cleansing effect than the horizontal one, and the gender variation had no effect.Conclusion: Patients' instructions are considered as an important factor for planning good oral hygiene.


Article
Dissolution of inorganic phosphorous ion from human enamel treated with different concentration of Siwak aqueous extract in comparison with sodium fluoride

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Abstract

Background: The use of Miswak, chewing sticks (salvadorapersica) can be traced back to Babylonians some 7000years ago. It is commonly used throughout the world especially for the purpose of oral hygiene. Muslims are using asthe religious view. Current study aimed to test the ability of aqueous siwak extract to increase the resistance ofenamel surface against acid dissolution compared to sodium fluoride.Materials and Method: Twenty maxillary first premolars were treated with the selected solutions included twoaqueous siwak extract concentration(5%,10%) and sodium fluoride(0.05%)as control positive for 2 minutes once dailyfor 20days interval, de ionized water was used as control negative. The concentration of the dissolved phosphorusion was measured in etching solution of 2N HCL by flam atomic absorption spectrometer.Result: 10% aqueous siwak extract test solution was registered the lesser release of phosphorusion from etchedenamel surface, then 5% aqueous siwak extract followed by sodium fluoride 0.05%. No significant differencebetween two aqueous siwak extract concentration, while a significant difference was found between mentionedagents and sodium fluoride. De ionized water was recorded a highly significant difference with all test solutions.Conclusion: Aqueous siwak extract effective in increasing the resistance of enamel surface for acid dissolution andshould be use not only for the religious view but also for the benefit of its effects produced


Article
Dissolution of calcium ion from teeth treated with different concentrations of siwak water extract in comparison with sodium fluoride

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Abstract

Background: The miswak is a teeth cleaning twig made from a twig of the Salvadora persica tree (known as arak in Arabic).A traditional alternative to the modern toothbrush, it has a long, well-documented history and is reputed for its medicinal benefits. It also features prominently in Islamic hygienical jurisprudence.Materials and methods: Twenty maxillary first premolars were treated with the selected solutions which included siwak water extract (5%, 10%) and sodium fluoride 0.05% for 2minutes once daily for 20 days interval, deionized water was used as control negative. Then the concentration of the dissolved calcium ion in the etching solution of 2N HCL was measured.Results: The least amount of the dissolved calcium ion was registered for water siwak extract 10%, then sodium fluoride0.05%followed by water siwak extract5%. A significant difference was found between the two concentrations of siwak water extract, while no significant difference was recorded between the mentioned agents and sodium fluoride. There was highly significant difference between deionized water group and other groups except between water and siwak water extract5% the difference was significant.Conclusions: Siwak water extract is successful in improving tooth resistance against caries challenge as it mineralize and harden enamel surface


Article
Oral health status and selected salivary physicochemical characteristics among a group of patients with acute lymphocytic leukemia undergoing chemotherapy (longitudinal study)

Authors: Dr. Baydaa Hussein B.D.S, M.Sc. د. بيداء حسين --- Dr. Estabrak Yakoob Baker B.D.S. د. استبرق يعقوبباقر
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2016 Volume: 13 Issue: 1 Pages: 98-104
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background: Acute lymphoblastic leukemia is fast growing cancer of the whiteblood cell. Chemotherapy which has been used to treat malignant conditions has anegative impact on oral health condition among cancer patients. Thisobservational study was conducted to determine the level of selected salivaryphysicochemical characteristics including flow rate and total antioxidant) inaddition to evaluation of oral health status (dental plaque and gingival healthcondition) among a group of patients with acute lymphoblastic leukemia.Materials and methods: The present study included thirty patients with acutelymphoblastic leukemia aged (14-17) years old. Those patients attended MedicalCity in Baghdad and were admitted to the Hematological Center at TeachingBaghdad Hospital. All patients fullfitted certain inclusion criteria. Salivary samplecollection and oral examination were carried at three visits: the first visit wascarried out before receiving chemotherapy (at the day of admission)(baselinedata), while the second visit was carried out at the day 15 (after startingchemotherapy), and the third visit was done at the day 30 (after startingchemotherapy). Stimulated salivary samples were collected and salivary flow ratewas determined. Dental plaque was assessed according to criteria of plaque indexby Sillness and Lӧe (1964) and gingival health condition was assessed accordingto the criteria of Modified Gingival Index for Lobene et al (1986). Salivarysamples then were chemically analyzed for the detection of salivary totalantioxidant.Results: In this study, salivary flow rate decreased with time (visits) (1.44±0.14,1.27±0.16, 1.02±0.53) with statistically highly significant differences (p<0.01).On the other hand, the mean values of plaque and gingival indices increased withtime (visits) (0.89± 0.39, 1.22± 0.58, 1.82 ±0.75) (0.98± 0.49, 1.13± 0.46, 1.38±0.84) respectively and the differences were statistically highly significant(p<0.01). While salivary total antioxidant decreased with time (visits) (0.94±0.25,0.92±0.21, 0.82±0.21) with statistically significant differences (p<0.05).Conclusion: Acute lymphoblastic leukemia, its treatment and duration of treatmenthave direct and indirect impact on the oral health status of leukemic patients.Those patients had poor oral hygiene with high rate of gingivitis in addition tochange in salivary physicochemical properties, thus, an organized, comprehensiveoral health preventive and educational programs in addition to intense oralhygiene program before and during the first month of treatment with cytotoxicMDJdrug (chemotherapy) are essential to improve their oral health condition andprevent oral problems and complications.


Article
Selected salivary antioxidants and gingival health condition among a group of obese females aged 20-22 years in Baghdad, Iraq

Authors: Dr. Huda A. Yaseen, B.D.S. * د. هدى علي ياسين --- Dr. Baydaa Hussein, B.D.S., M.Sc. ** د. بيداء حسين
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2017 Volume: 14 Issue: 1 Pages: 65-71
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background: Obesity and periodontal disease are diseases of multifactorial etiologyclosely related to dietary habits and sociodemographic background of theindividuals. The aim of this study was the assessment of selected salivaryantioxidants and gingival health condition among a group of obese females aged20-22 years in comparison with normal weight females.Materials and methods: The study group included 40 obese females, with an agerange 20-22 years old. The control group included 40 normal weight females ofthe same age. Body weight was assessed by using the Body Mass Index (BMI).Collection of unstimulated salivary samples was carried out under standardizedconditions. Plaque and gingival indices were used for recording the oral hygieneand gingivitis. Salivary flow rate was measured then salivary samples wereanalyzed to determine the concentration of salivary antioxidants (total protein anduric acid).Results: The data analysis of the present study found that the level of salivary totalprotein was lower among the obese females compared to the normal weightfemales with statistically highly significant difference (p<0.01), while salivaryuric acid was statistically highly significantly higher among the obese than thenormal weight females (p<0.01). Salivary analysis demonstrated that the salivaryflow rate was statistically highly significantly higher among the obese females(p<0.01).The mean values of plaque index and gingival index were lower among obesefemales compared to the normal weight females with statistically highlysignificant difference for plaque index (p<0.01).Conclusions: The result of this research revealed that salivary antioxidant (uric acid)and salivary flow rate were higher among obese females than normal weightfemales which may play a role in protection oral tissue from oral diseases inaddition to the oral cleanliness effect.

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