research centers


Search results: Found 173

Listing 1 - 10 of 173 << page
of 18
>>
Sort by

Article
Evaluation of Staging of Carcinoma of Breast as anIndicator for Presentation of Patients

Authors: Mahdi Jasim Moosa --- Najeeb Sleiwah Jabbo
Journal: Al-Kindy College Medical Journal مجلة كلية الطب الكندي ISSN: 18109543 Year: 2006 Volume: 3 Issue: 1 Pages: 52-55
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Background: The type of treatment of carcinoma
of the breast depends on its stage at presentation. Its
early detection is important.
Objective: Analysis of treated patients for
carcinoma of breast in regards to their stages,
considering it as an indicator for patient's presentation
and discusses the results in this collection.
Methods: A review study of cases treated surgically
for the last 10 years by the authors. Their stages were
recorded in addition to their age, gender and type of
histopathology.
Results: A collection of 110 patients was studied.
Those in the 5th decade were affected more. Females
were 107 and males were only 3. The right breast was
affected more than the left one. Infiltrative ductal
carcinoma was the commonest type of pathology
followed by the lobular carcinoma. Stage 2 was the
commonest stage at time of diagnosis and treatment.
Conclusion: In our collection, more than half of
our patients present during stage 2. This is a late
presentation. Earlier detection is necessary. An
important Program for early detection directed by the
authorities, using the periodic physical examination
and self breast examination and considering the start
of mammography screening program for those with
age range of (40-60). Programs for educating women
in regards to the risk factors and other information
about this disease through the internet should be
considered.
Keywords: Breast carcinoma, stage, presentation.


Article
Impact of tumor biomarkers and patient’s age on the “disease stage” in women with breast cancer in Erbil city
تأثير المؤشرات الحيوية للورم وعمر المريض على "مرحلة المرض" عند النساء المصابات بسرطان الثدي في مدينة أربيل

Authors: Jangi Sh. Muhialdin --- Showan Salam Marouf
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2015 Volume: 19 Issue: 2 Pages: 1019-1028
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

Loading...
Loading...
Abstract

Background and objective: Female breast cancer is the most commonly diagnosed cancer worldwide, affecting more than one million women annually. The objectives of this study were, firstly, to evaluate the effects of breast cancer biomarkers such as human epidermal growth factor receptor-2and hormone receptor status on the stage of breast cancer at the time of presentation, and secondly, to assess the role of “women’s age” on the level of biomarker expressions and on the advancement in breast cancer disease stage at the time of diagnosis in a sample of women diagnosed with breast cancer in Erbil City. Methods: A retrospective analysis of medical records of women affected with breast cancer was performed from January 2013 to April 2014. Cancer staging was done based on the histopathological reports according to the American Joint Committee on Cancer TNM staging system. Patients were classified to either hormone receptor/human epidermal growth factor receptor-2 positive or negative based on immunohistochemistry or FISH analysis. Results: The mean age (+SD) at diagnosis was 48.9 (+12.4) years. About a quarter of breast cancer cases were diagnosed in young women aged less than 40 years, who had a proportionally more hormone receptor negativity and human epidermal growth factor receptor-2 over-expression, and a significantly more advanced cancer stage at time of diagnosis compared to their older counterparts.Conclusion: Breast cancer biomarkers have huge impacts on disease stage, and are greatly affected by age of women at time of diagnosis of breast cancer.


Article
One stage surgery using subtrochanteric osteotomy versus two stage surgery using supracondylar femoral derotation osteotomy in treatment of developmental dysplasia of the hip joint for older children
علاج خلع الورك الولادي بالجراحة بواسطة استخدام قص أعلى عظم الفخذ بمرحلة واحدة خلافا لقص أسفل عظم الفخد بمرحلتين.

Author: Ali A. Ahmed Al-Iedan د.علي عبدالله العيدان
Journal: The Medical Journal of Basrah University المجلة الطبية لجامعة البصرة ISSN: 02530759 Year: 2013 Volume: 31 Issue: 2 Pages: 68-74
Publisher: Basrah University جامعة البصرة

Loading...
Loading...
Abstract

Background: The one stage surgery of open reduction and subtrochantric femoral osteotomy with or without pelvic osteotomy, has been an accepted method of treatment of congenital hip dislocation in older children. This approach obtains predictable reduction and results in a low rate of osteonecrosis despite the higher rate of operative and postoperative morbidity like prolonged anesthesia time, large incisions and more immediate postoperative complications. Two-stage surgery might, therefore, help in avoiding the above-cited disadvantages.Aim of the study: Is to compare the results obtained by using either one-stage surgery by subtrochanteric or two-stage surgery by supracondylar femoral derotational osteotomies in the management of developmental dysplasia of the hip joint.Patients and Methods: This is a randomized controlled trial involving children under the age of 2.5 years with developmental dysplasia of the hip and attending Basrah General Hospital between December 2010 till August 2012. Thorough clinical examination and laboratory investigations were done for all the patients and only 30 patients with 39 dislocated hips whom did not require femoral shortening and need >10-15 degrees of acetabular roof index correction using pelvic osteotomy were included in this study. Each patient was randomly allocated into one of the two surgical procedures; procedure A was one-stage surgery and procedure B was two-staged surgery. At the end of the study period, a total of 30 patients under the age of 2.5 years were recruited for this study, 16 patients underwent procedure A and another 14 underwent procedure B. The patients were followed-up for 12-18 months and evaluated clinically & radiologicaly depending on McKay and Severin’s clinical and radiological criteria respectively.Results: Thirty patients with 39 dislocated hips were managed. Patients age ranged from 1.5 to 2.5 years; all of them were females having no associated skeletal anomaly. The outcome of one-stage surgery showed better clinical (78.9%) and radiological results (88.8%) in comparison to two-stage surgery which showed 45% clinical and 70% radiological results, however, the time of technical procedure and other morbidities for example; risk of infection (20%), preoperative blood transfusion (100%), respiratory distress (13.5%) were relatively greater in one-stage surgery. Conclusion: The results of this study showed that one-stage operation resulted in better joint realignment, without increasing risk of avascular necrosis, and more hip joint physiological and anatomical remodeling affinities, despite of its prolonged time and more rate of immediate postoperative morbidity. While in the two-staged surgery, the clinical and radiological outcomes were less successful than those with one-stage operation, though immediate postoperative morbidities were less.

الخلفية: الجراحة بمرحلة واحدة لعلاج خلع الورك الولادي باستخدام قص أعلى عظم الفخذ مع أو بدون قص عظم الحوض، وكان وسيلة مقبولة لعلاج خلع الورك الخلقي في الأطفال الأكبر سنا. هذا النهج يحصل على تخفيض و نتائج يمكن التنبؤ بها في انخفاض معدل تنخر العظم على الرغم من ارتفاع معدل الإصابة بالأمراض بعد العملية الجراحية لفترة طويلة مثل وقت التخدير، وجروح كبيرة و مضاعفات ما بعد الجراحة أكثر إلحاحا.في هذه الدراسة، نقسم إجراءات علاج هذه الحالة إلى مرحلتين بدلا من مرحلة واحدة.هدف الدراسة: لمقارنة النتائج التي تم الحصول عليها باستخدام الجراحة إما مرحلة واحدة عن طريق الجراحة تحت المدور (أعلى عظم الفخذ) أو مرحلتين بواسطة قص و تدوير عظم الفخذ فوق اللقمة (أسفل عظم الفخذ) في علاج خلع مفصل الورك الولادي.المرضى وطرق العلاج: هذه دراسة عشوائية تشتمل الأطفال أقل من ثلاث سنوات من العمر مع خلع الورك و اللذين راجعوا مستشفى البصرة العام في الفترة بين ديسمبر 2010 وحتى اغسطس 2012 وأجريت الفحوصات السريرية لجميع المرضى وفقط 30 مريض الذين يعانون من خلع الورك من 39 مريض الذي لا تتطلب تقصير الفخذ وجميعهم بحاجة > 10 الى-15 درجة من تصحيح السقف الحقي باستخدام قص عظم الحوض تم تضمينهم في هذه الدراسة.كل مريض اختير عشوائيا إلى واحدة من اثنين من العمليات الجراحية؛ الإجراءآ: الذي هو الجراحة مرحلة واحدة و إجراء ب: الذي هو الجراحة بمرحلتين. في نهاية فترة الدراسة، وشملت ما مجموعه 30 مريضا تحت سن 2.5 سنة في الدراسة، خضع 15 مريض لإجراء آ و 15 مريضا خضع لإجراء ب.تمت متابعة المرضى لمدة 12 الى-18 شهرا وتقييمها سريريا وإشعاعيا اعتمادا على تقييم مكاي و المعايير السريرية والإشعاعية في تقييم سيفيرين على التوالي.النتائج: أدرج الثلاثون مريض الذين يعانون من 39 خلع مفصل الورك ،كان المرضى تتراوح أعمارهم 1.5-الى2.5 سنوات ، وجميعهم من الإناث مع عدم وجود أي شذوذ في الهيكل العظمي . وأظهرت نتائج الجراحة بمرحلة واحدة نتائج أفضل بالمقارنة مع الجراحة على مرحلتين ، ومع ذلك وقت الإجراء التقني و الحالات المرضية ألاخرى على سبيل المثال؛ خطر الالتهاب، وخطورة نقل الدم، و ضيق في التنفس وكانت أكبر نسبيا في الجراحة بمرحلة واحدة.الاستنتاج: ويستنتج من نتائج هذه الدراسة أن العملية بمرحلة واحدة أسفرت عن أفضل إعادة لتشكيل مفصل الورك، ومعدلات أقل لتنخر رأس عظم الفخذ بسبب نقص التغذية الدموية، على الرغم من اخذ وقت أكثر وكثره الاعتلالات بعد الجراحة على الفور. بينما في الجراحة بمرحلتين كانت النتائج السريرية والشعاعية أقل من تلك التي مع عملية بمرحلة واحدة ، على الرغم من قله الاعتلالات المرضية بعد الجراحة على الفور.


Article
ABILITY OF Leishmania donovani TO CONGENITAL TRANSMISSION IN EXPERIMENTAL BALB/C MICE
قابلية طفيلي اللشمانيا الاحشائية Leishmaniadonovani على الانتقال الخلقي في الفئران المختبرية سلالةBALB/c

Loading...
Loading...
Abstract

The aim of the current study was to investigate the ability of the transmission of Leishmania donovani parasite from pregnant mothers to their embryos in experimental BALB/c mice. After 5 days of copulation males with females,females were injected with 1012 parasite/ml of promastigote stage through the tail vein, which is grown in NNN-medium.This study demonstrated parasite ability to congenital transmission from mothers to their embryos by placenta through the appearance of amastigote in tissue sections of liver and bone marrow of infected mice fetusescompared with uninfected fetuses.

الهدف من الدراسة الحالية التحقق من قابلية انتقال طفيلي اللشمانياالاحشائيةLeishmania donovaniمن الامهات الحوامل الى اجنتها في الفئران المختبرية سلالة BALB/c ، بعد مزاوجة ذكور الفئران مع الاناث ، أذ تم حقن الاناث بجرعة 1012طفيلي من خلال الوريد الذنبي بالطور امامي السوط للطفيلي الذي نمي على وسط NNN-medium .أثبتت الدراسة قابلية الطفيلي على الانتقال الخلقي من الامهات الى اجنتها بواسطة المشيمة من خلال ظهور الطور عديم السوط في مقاطع انسجة الكبد ونخاع العظم لأجنة الفئران المصابة مقارنتاً مع الأجنة غير المصابة.


Article
Prediction of Tigris River Stage in Qurna, South of Iraq, Using Artificial Neural Networks
التنبؤ بمنسوب نهر دجلة في القرنة, جنوب العراق باستعمال الشبكات العصبيةِ الاصطناعية

Authors: Ali H. Al Aboodi --- Ammar S. Dawood --- Sarmad A. Abbas
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2009 Volume: 27 Issue: 13 Pages: 2448-2456
Publisher: University of Technology الجامعة التكنولوجية

Loading...
Loading...
Abstract

Artificial neural networks (ANNs) with back-propagation algorithm areperformed for predicting the stage of Tigris River in Qurna city, Basrah, south of Iraq. This model was adopted to investigate the applicability of ANNs as an effective tool to simulate the river stage for short term. By using the neural network toolbox in Matlab R2007b, three models are constructed as the first experiment. Multilayer percpetron with one hidden layer is used in the architecture of network. The best model is selected according to the trial and errorprocedure based on three common statistic coefficients (coefficient of correlation, root mean square error, and coefficient of efficiency). The best model from first experiment is used to predict the stage river for one, two, and three days ahead as the second experiment. Results indicated the ANNs with back-propagation algorithm are a powerful technique to predict the short term stage of Tigris River

تمت تهيئة الشبكات العصبية الصناعية باستخدام طريقة انسياب الخطأ لأعداد نموذج التنبؤ بمنسوب نهر دجلة في قضاء القرنة, محافظة البصرة, جنوب العراق. استخدم النموذج المعد للتحري عن إمكانية الشبكات العصبية الصناعية كأداة فاعلة في محاكاة منسوب النهر ثلاثة .(Matlab R2007b) للمدى القصير باستعمال صندوق عدة الشبكات العصبية في برنامج نماذج أنشأت كتجربة أولية حيث استخدمت الشبكة العصبية من النوع متعدد الطبقات لبناء معمارية الشبكة. أفضل نموذج اختير طبقا لعملية التجربة والخطأ مستندا على ثلاث معاملاتإحصائية معروفة هي (معامل الارتباط, جذر معدل الخطأ ألتربيعي, ومعامل الكفاءة). أفضل نموذج انبثق كحصيلة لنتائج المرحلة الأولى, استعمل لتنبؤ بمنسوب النهر ليوم, يومين, وثلاثة أيام لاحقة. بينت النتائج, إن الشبكات العصبية الصناعية المعايرة باستعمال طريقة انسياب الخطأ تقنية كفؤءة للتنبؤ بمنسوب نهر دجلة للمدى القصير.

Keywords

Prediction --- Tigris --- Stage --- Neural --- Networks


Article
Frequency of HLA-A and B Antigens in Iraqi Patients with End-Stage Renal Disease Preparing for Transplantation

Authors: Lazem H. Al-Taie --- Batool H. Al-Ghurabi --- Ahmed A .Al-Hassan --- Abid J. Dage
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2012 Volume: 11 Issue: supplement Pages: 642-648
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

Loading...
Loading...
Abstract

ABSTRACT:BACKGROUND:The likelihood of developing end-stage renal disease in an individual is determined by interactions between genetic and environmental factors. Human leukocyte antigen is the most polymorphic genetic system in man. Genes of this region influence susceptibility to certain diseases.OBJECTIVE:The purpose of the present study is to investigate the association of HLA class I (HLA-A and HLA-B) with the end-stage renal disease in Iraqi patients (Arab and Kurd).SUBJECTS AND METHODS:HLA-typing was assessed in 200 patients with end-stage renal disease and 110 healthy controls by microlymphocytotxicity assay.RESULTS:A survey of the distribution of HLA-A and HLA-B antigens frequencies yielded a significant variation between patients and healthy control group. Arab patients have significant increase in frequency of HLA-A2 as compared with healthy control (P=0.005). Whereas Kurdish patients revealed significant increase in frequency of HLA-B35 when compared with healthy control (P=0.033).CONCLUSION:The current study suggests that high frequency of HLA-A2 in Arab patients and HLA-B35 in Kurdish patients might be associated with susceptibility to risk of end-stage renal disease


Article
Effect of lactation stage and calve sex in some of milk components in Iraqi Riverine Buffalo

Author: Lina A. Mahdi
Journal: Kufa Journal For Veterinary Medical Sciences مجلة الكوفة للعلوم الطبية البيطرية ISSN: 20779798 Year: 2014 Volume: 5 Issue: 1 Pages: 110-114
Publisher: University of Kufa جامعة الكوفة

Loading...
Loading...
Abstract

The present study was carried out at local buffalo flock in AL-Najaf province , by using data collected for 40 reverine buffalo in different lactation stage thought the year 2013 to determine the effect of lactation stage and sex of birth in milk protein , lipids , lactose ,ash solid not fat ,calcium ,density, freezing point and water. Results was showed a significant effect (p≤ 0.05 ) of lactation stage in milk lipids, protein, ash and freezing point , the highest values were in late period of lactation (9.5g/l ,4.0 g/l ,0.84 g/l and -29.85 c°) respectively. Lactose and density were increased significantly (p≤ 0.05 ) in the beginning of lactation period its about 4.53 g/l and 54.33ml/gm respectively compared with end of lactation period its about 3.38 g/l and 43.67 ml/ gm respectively. S.N.F ,calcium and water were not affected significantly by lactation stage. Significant effect (p≤ 0.05 ) of calve sex in milk lipids, protein and freezing point , the highest values were in milk of dams that calved female (7.83g/l ,3.92 g/l and -27.36c°) respectively. Lactose and density were increased significantly (p≤ 0.05 ) in the milk of dams that calved male its about 4.62 g/l and 53.17ml/gm respectively. S.N.F ,calcium, ash and water were not affected significantly by calve sex.


Article
Preliminary Design of A multi- Stage Axial Compressor

Authors: Ruqeaa Ismail M. Al-Rubyee --- Ihsan Y. Hussain --- Munther I. Al-Druby
Journal: Journal of Engineering مجلة الهندسة ISSN: 17264073 25203339 Year: 2008 Volume: 14 Issue: 2 Pages: 2534-2551
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

A numerical calculations algorithm has been developed in the present work for a thermodynamics and aerodynamic design of an axial flow compressor. The design calculations were based on thermodynamics, gas dynamic, fluid mechanics, aerodynamic and empirical relations. A two- dimensional compressible flow is assumed with constant axial and rotor blade velocities. A free –vortex swirl distributions was used in the design. These calculations include; power of the compressor, thermodynamic properties of the working fluid, stage efficiency, number of rotor and stator blades, tip and hub diameters, blade dimensions (chord, length and space) for both rotor and stator, velocity triangles before and after the rotor, Mach number, solidity, degree of reaction, flow and blade angles (blade twist) and lift and drag coefficients along the blade and lift. A repeated stage calculation is made to calculate the above parameters along compressor stages. The twist of the blades can be calculated along the blade length at any required number of sections selected by the designers to obtain smooth blade twist profile. The developed algorithm was tested on a compressor cascade series type NACA 65(12)10 with circular camber angle of (30). The results show that; the lift coefficient decreases as mean flow angle increases, the drag coefficient increases along blade length at a mean flow angle of (15), the relative Mach number increases along blade length as mean flow angle increases, the ratio of total drag coefficient to lift coefficient increases when the mean flow angle increases, the drag coefficient decreases along blade length as the solidity increases, the cascade efficiency increases as the mean flow angle increase to (45).

تم في هذا البحث تطوير خوارزمية حسابات عددية للتصميم الثرموديناميكي والايروديناميكي لضاغطة محورية. تم في هذه الحسابات التصميمية اعتماد معادلات الثرموديناميك, ديناميك الغازات, ديناميك الموائع, الايروديناميك و بعض العلاقات التجريبية بالاعتماد على الفرضيات التالية: اعتبار الجريان ثنائي البعد وانضغاطي, ثبوت السرعة المحورية وسرعة الريشة الدوارة والتوزيع الدوامي الحر لالتواء الريش. تم في هذه الخوارزمية ايجاد اهم الخواص واكثرها فاعلية في حسابات تصميم الضاغطة.تم ايجاد قدرة الضاغطة وخواص المائع الحرارية للريش الدوارة والثابتة, كفاءة المرحلة الواحدة, عدد الريش الدوارة والثابتة, الاقطار عند قمة وقاعدة الريشة بثبوت قطر وسط الريشة, ابعاد الريشة الدوارة والثابتة (طول, عرض و وتر), مثلثات السرع قبل وبعد الريشة الدوارة, رقم ماخ النسبي, النسبة الفراغية, درجة رد الفعل, زوايا الجريان وزوايا الريش الدوارة والثابتة ( التواء الريش) ومعامل الرفع على طول الريشة. تم اجراء حسابات لتحديد التواء الريش عن طريق اختيار عدد من النقاط على طول الريشة(حسب رأي المصمم) والحصول على درجة التواء مقبولة. تم اعتماد أسلوب حسابات المرحلة المتكررة لتسهيل الانتقال من صف إلى آخر أو خلال مراحل الضاغطة. تم إجراء اختبار خوارزمية الحسابات العددية على متعاقبة من سلسلة الضواغط نوع NACA65(12)10 ذات معدل تحدب دائري وزاوية تحدب (30) درجة. أظهرت النتائج إن معامل الرفع يقل بزيادة متوسط زاوية الجريان, يزداد معامل الكبح عند اقل متوسط زاوية جريان, ازدياد رقم ماخ عند زيادة متوسط زاوية الجريان, زيادة نسبة معامل الكبح الكلي الى معامل الرفع بزيادة متوسط زاوية الجريان, يقل معامل الكبح على طول الريشة عند زيادة النسبة الفراغية, تزداد كفاءة المتعاقبة عند زيادة متوسط زاوية الجريان وصولا الى زاوية مقدارها (45) درجة بعده تبدأ بالنقصان تدريجيا.


Article
جدلية التأريخي والدرامي "الحسين الأن" انموذجاً

Author: jabar kamat hasen جبار خماط حسن
Journal: al-academy مجلة الاكاديمي ISSN: 25232029 18195229 Year: 2012 Issue: 62 Pages: 63-72
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

ABSTRACT This research is an attempt about a kind of concept: presumptive narrative by process of dramatic treatment and relationship with history. It's dealing with several questions in this research. The main question will be upon the drama with narrative which is limited by history. Or other question will be upon drama treatment with the history by dramatic working .Our sample will be the dramatic text "Al-Hussein Now" written by Dr. Aqeel Mahdy. It is a sample of presumptive narrative advert for historical real dealing with (Al-Taf Battle) or it depends upon special dramatic exegesis by deferent automotives? The researcher is trying in this research to find his answers of these questions of this research.

ملخص البحث يتناول هذا البحث مفهوم السيرة الافتراضية وكيفية اشتغالها, درامياً, مع الواقعة التأريخية, وما تثيره من أسئلة تمثل مشكلة البحث والتي تتلخص بالآتي : ماذا ينتج حين تختلط الدراما بالسيرة ؟ دراما مقيدة بالتاريخ ؟ أم دراما تنظر إلى التأريخ بوصفه افتراضاً قابلاُ للتشكيل درامياً وعلى نحو جديد ؟ ولذلك يعالج البحث نصًا دراميا (الحسين الآن ) أنموذجًا يمثل عينة لما يسميه مؤلف النص د. عقيل مهدي باالسيرة الافتراضية والتي يعالجها البحث من خلال الأسئلة الآتية : أهو تفسير الواقع المعيش بما هو تأريخي باستثمار واقعة الطف؟ أم هو تأويل درامي يعالج الواقعة التأريخية ذاتها من حيث الأسباب والدوافع المغايرة ؟ والأجوبة تشكل متن هذا البحث.

Keywords

theater --- scene --- stage --- playhouse --- فن المسرح --- مسرح


Article
One stage immediate loading implants “experimental study on dogs”

Authors: Anwar A. Al Saeed انوار السيد --- Mohammed J. Essa محمد عيسى --- Zaid G. Hamdoon زيد حمدون
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2005 Volume: 17 Issue: 3 Pages: 76-84
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Background: One stage immediate loading to implants offers some clinical advantages. The purpose of this study was to evaluate the concept of one-stage immediate loading implant (screw type) in comparison to non-loading group.Materials and Methods: One stage dental implant (Denti Dental Implant System), Hungary, 10mm in length, and of 4-4.5mm in diameter, was used. Five adult dogs of 15-22 Kg body weight were selected in the current study. Extraction of left fourth premolar and first molar was done, and the region was left to heal for about 2 months. Twenty implants were installed, ten implants of (4-4.5mm in diameter) were inserted in the left posterior region of the lower jaw which was loaded by Nickel Chrome crown which is considered as (study group), and ten implants of (4- 4.5mm in diameter), without crowns were inserted anteriorly to the loaded groups and considered as (control group).Results: The current study shows that one of the immediate loaded implant of 4mm in diameter lacked primary stability, which exfoliated later on. There were significant differences at level of loading, diameter and their interaction. Analysis of variance revealed that the smaller diameter implants were significantly higher value of mobility than larger one. The study shows a high incidence of successful rate of the immediate loaded implants of 4.5mm, similar to the non-loaded group, while low incidence of successful rate of loaded implants with 4mm in diameter in compare to the non-loaded group.Conclusions: The study reported that immediate loading of freestanding implants can achieved osseointegration by using screw shaped implant with large diameter (4.5mm) similar to the non-loaded type. The larger implant diameter associated with higher successful rate and less bone loses when compared with smaller diameter in both groups

Listing 1 - 10 of 173 << page
of 18
>>
Sort by
Narrow your search

Resource type

article (173)


Language

Arabic (85)

English (62)

Arabic and English (19)


Year
From To Submit

2019 (22)

2018 (30)

2017 (18)

2016 (16)

2015 (13)

More...