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A Comparison between Er,Cr:YSGG 2780 nm Laser and Carbide Fissure Bur in Root-End resection
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Aim: The Aim of the study is to compare between Er,Cr:YSGG 2780 nm laser and carbide fissure bur in root-end resection regarding the morphological variations, temperature changes and the duration of resection process.

Settings and Design: 5 W, 25 Hz, 50% water, 80% air,25.47 J/cm2 .

Material and method: twenty-one extracted single rooted teeth endodontically were treated, twenty teeth were obturated and divided into two groups according to method of resection. Group 1 root-end resected using cross cut carbide bur while group 2 root-end resected using laser with MGG6 sapphire tip of 600 μm diameter. Temperature on external root surface and duration of resection were recorded. The remaining tooth served as control. Samples were prepared for SEM and examined to evaluate dentinal cracks, cemental damage, roughness, filling material-root canal wall interface.

Statistical Analysis: whenever required, x2 test/Fisher exact and Kruskal–Wallis test were used.

Results: laser result in intradentin cracks in 70% of samples while bur cause intradentin crack in 30% of samples. There was no significant difference between group 1 and 2 regarding the percentage of complete and incomplete cracks. Resection with bur resulted in cemental damage in 70% of samples while resection with laser didn’t result in cemental damage in any of the samples .Evaluation of surface roughness revealed statistically significant difference (P ≤ 0.05). The difference in duration of resection was statistically significant while in recorded temperature was not significant.

Conclusion: Er,Cr:YSGG laser showed higher percentage of intradentinal cracks, no cemental damage, larger gap area ,rougher surface and longer time for resection than bur .There is no elevation of temperature on external root surface.

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Publication Date
Tue Jun 01 2004
Journal Name
Al-academy
مفهوم البعد الواحد في الرسم العراقي المعاصر
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مفهوم البعد الواحد في الرسم العراقي المعاصر

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Publication Date
Sun Dec 02 2007
Journal Name
Political Sciences Journal
وظائف الدولة (في الفكر السياسي العربي الاسلامي)
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وظائف الدولة (في الفكر السياسي العربي الاسلامي)

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Publication Date
Sat Feb 01 2020
Journal Name
Journal Of Economics And Administrative Sciences
Effect of Strategic Control to Avoid the Strategic Pitfalls
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This study identified intellectual and applied research in key variables (Strategic Control and Strategic Pitfalls) through internal dimensions then founded the (Federal Board of Supreme Audit) is the good area for analyzing the relationship and effect between variables by (125) questionnaire selected from (148) was distributed to the top and middle management as a seniors in controlling action. Appropriate methods, statistical tools, and programs were used to enhance the basic outputs, represented as a set of Conclusions and recommendations from the real control work with a specificity of potential Pitfalls in the effectiveness impact by Strategic Control in other dimensions which Studied.

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Publication Date
Thu Oct 01 2015
Journal Name
Journal Of Educational And Psychological Researches
الشخصية العراقية في سياق تكامل الاسرة الحضرية
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From the above can be placed in a summary of the Iraqi personal to the subject in the context of urban family Integration: As personal so hard and durable organization to some extent on the nature of the individual temperament, his mind and his body structure Vhoalve determines the unique environment compatibility.
Valchksah not inherited However, the inherited components, building of the body of the individual and the way they complement each other and members of Trivhalta functions performed by temperament and preparations all in compliance with Vchksath become a product of the interaction between the possibility of nature and the environment.
From here we can say that the family a big role in the personal configuration,

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Publication Date
Fri Jun 01 2007
Journal Name
Journal Of Economics And Administrative Sciences
دور مكننة المعلومات المحاسبي في اتخاذ القرارات
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دور مكننة المعلومات المحاسبي في اتخاذ القرارات

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Publication Date
Thu Apr 17 2025
Journal Name
مجلة العلوم الاساسية
التشكيل الموسيقي في شعر نهار بن توسعه
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Publication Date
Sun Jan 02 2011
Journal Name
Journal Of Educational And Psychological Researches
توظيف الخبر الصحفي في أنشطة العلاقات العامة
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مما لاشك فيه إن من أهم الأساليب التي تعتمد عليها أقسام العلاقات العامة في تحقيق أهدافها هو توظيف الخبر الصحفي ويشمل ذلك اهم أهداف العلاقات العامة ومنها التواصل مع الجماهير داخليه وخارجية ، بناء الصورة الذهنية الايجابية ، الإعلان ، الترويج ،..... الخ وفي اطار التطور الكبير الذي شهده علم العلاقات العامه في العقود الزمنية الاخيرة تزايد وتوسع الاعتماد على التوظيف الإخباري عن طريق بناء وتشكيل ومعالجة مضامين الخب

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Publication Date
Sun Jul 01 2018
Journal Name
قضايا سياسية
نظرية النخبة في الفكر السياسي الغربي المعاصر
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تعد ظاهرة النخبة من اهم الموضوعات التي يعنى بها دارسو العلوم السياسية، اذ تشكل هذه الظاهرة محور نشاطات الجماعة السياسية، وبالرغم من تباين النظريات المتعلقة بتفسير وجود هذه الظاهرة ونشأتها، فان هناك اتفاقا على ارتباط هذه الظاهرة بتوزيع القوة داخل المجتمع الانساني فبعد ان كانت هذه الكلمة )النخبة( تستخدم في القرن السابع عشر لوصف سلع ذات تفوق معين امتد استعمالها فيما بعد ليشمل الاشارة الى فئات اجتماعية متفوقة ك

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Publication Date
Wed Feb 15 2012
Journal Name
مجلة( الآداب) الصادرة عن ( كلية الآداب/ جامعة بغداد)
بلاغة الاستفهام في سورة مريم ( قراءة تتجدّد )
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أعددت العدة لتسليط الضوء على خصوصية اختيار أداةاستفهام دون غيرها من الأدوات التي يصح أن تنوب عنها،مع التأكيد على ما يكمن وراء المعنى المجازي من مضمون. يفس: ر خصوصية الاستفهام وفضله في التعبير( وهذه المنهجية انصبت على15)?خمسة عشر موضعا(استفهام في استفهاميا ? في السورة المباركة ،وزعتها بين) ( )استفهام في الخطاب البشري ، وقد و الخطاب الإلهي) ( ) (زمام المعاني باقتدار، الإنكار و التعجب أمسك فيها غرضاولعل ذلك يناسب سورة

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Publication Date
Mon Nov 26 2018
Journal Name
Arab Science Heritage Journal
النبوة في منظور الدين اليهودي )دراسة موضوعية(
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 Prophecy, the Jews had another concept, does not limit to choosen from God, but expands to include all of the claims to prophethood of priests and magicians and liars, The word prophet in the eyes of the Jews view has abroad meaning, That included the prophets who were chosen by God to his message, in order to repair case Also those, who were of magicians, astrologer & hypocrites

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