Preferred Language
Articles
/
ijl-232
A Comparison between Er,Cr:YSGG 2780 nm Laser and Carbide Fissure Bur in Root-End resection
...Show More Authors

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.

View Publication Preview PDF
Quick Preview PDF
Publication Date
Mon Jun 12 2017
Journal Name
Arab Science Heritage Journal
الوطن والدولة في فكر السيد محمد بحر العلوم
...Show More Authors

View Publication Preview PDF
Publication Date
Wed Jun 27 2018
Journal Name
Journal Of The College Of Education For Women
The Referential Aspect of the Quranic Text Az-Zahraa’s)Peace Be Upon Her( Speech
...Show More Authors

In the present paper, the researcher attempts to shed some light on the objective behind inserting some Qur'anic verses by Al-Zahraa (Peace Be Upon Her) in her revered speech. Besides, it tries to investigate the hidden meaning of these verses and to study them in the light of pragmaticreferences. This task is supported by Books of Tafseer as well as the books that explained this speech to arrive at its intended meaning. It is possible say that this is astep towards studying speeches of 'Ahlul Bayt' (People of the Prophet's household) in terms of modern linguistic studies, as well as employing modern methods to explore the aesthetic values of these texts.

View Publication Preview PDF
Publication Date
Sat Feb 01 2025
Journal Name
مجلة الفارابي للعلوم الإنسانية
دراسة تحليلية لترجمة المسكوكات اللغوية في الصحافة الاسبانية
...Show More Authors

دراسة تحليلية لترجمة المسكوكات اللغوية في الصحافة الاسبانية.

Publication Date
Mon Jul 22 2019
Journal Name
Arab Science Heritage Journal
تطورُ د راسةِ الهمزةِ وكتابتُها في المرحمةِ الإعداديّة
...Show More Authors

يُعنى هذا البحث بمهارة د  راسة وكتابة الهمزة التي تعدّ , برغم كثرة محاولات تيسيرها من
أعقد المسائل المتعمقة بقواعد الإملاء في الكتابة العربية

View Publication Preview PDF
Publication Date
Thu Jul 16 2020
Journal Name
مجلة حمورابي
انعكاسات تطور القوة المعلوماتية الامريكية في البيئة الداخلية
...Show More Authors

The global globalization the world is experiencing has enabled international actors—states, international governmental and non-governmental organizations, such as liberation movements, international social movements, and even terrorist organizations—to use cyber power to achieve their goals. Therefore, this study discusses the impact of information power on the domestic environment of the United States.

View Publication
Publication Date
Thu Aug 27 2020
Journal Name
Arab Science Heritage Journal
بلاد ما وراء النهر في كتب الرحالة والجغرافيين
...Show More Authors

Land beyond the river has the attention of historians, especially travelers and geographers of its various regions under the Islamic Arab state. They antedate the social and economic aspects, including agriculture, industry and trade in their products and goods to other countries and urbanism, which we will address in our research

View Publication Preview PDF
Crossref
Publication Date
Tue Jan 01 2008
Journal Name
Journal Of Educational And Psychological Researches
اثرالتعلم باللعب في السلوك العدواني لدى اطفال الروضه
...Show More Authors

يستهدف البحث التعرف على اهمية التعلم باللعب لاطفال رياض الاطفال وانعكاساتها على تعديل سلوكهم، حيث ان اللعب هو دنيا الطفل المليئة بالمتعة والاستطلاع والاستكشاف، كما ان اللعب بالنسبة للاطفال يمثل لهم الحياة بكل ما فيها من معنى.

وفي الوقت نفسه اللعب هو وسيلة من وسائل الضبط والتوجيه للتعامل مع سلوك الاطفال، فمن خلال اللعب نستكشف النبوغ والتفوق منذ وقت مبكر، حيث ان التعلم باللعب يمثل حاجة حيو

... Show More
View Publication Preview PDF
Publication Date
Thu Jun 01 2006
Journal Name
بيت الحكمة
المنطق منهجا نقديا - دراسة في قراءة الشكل الجمالي
...Show More Authors

المنطق منهجا نقديا - دراسة في قراءة الشكل الجمالي كتاب (المنطق منهجا نقدياً – دراسة في قراءة الشكل الفني) يهتم الكتاب بدراسة التصورات المنطقية في الفنون التشكيلية وهو يقع في اربعة فصول خصص الاول منها لبيان المنهجية والفكرة العامة عن علاقة المعرفة بالقواعد الفكرية والقواعد المنطقية موضحا ذلك في (مدخل عام) وتعلق الفصل الثاني بالمفاهيم المنطقية وما كتبه علماء المنطق في عرض شامل ومكثف تناول فيه المؤلف مفهوم ال

... Show More
View Publication
Publication Date
Tue Mar 15 2022
Journal Name
Arab Science Heritage Journal
قراءة في المصدر واسم المصدر على وفق الاستعمال
...Show More Authors

What linguists mentioned about the infinitive and its use in the linguistic levels of speech, whether with its verb, or what was mentioned in the difference between the infinitive and the noun of the source, are matters that are related to the phenomenon of hearing in speech, a need necessitated by the nature of the linguistic law and its connection with the Arabic dialects, which proceeded in the linguistic levels to form Phenomenon inherent in the use of the source and the name of the source

View Publication Preview PDF
Publication Date
Sun Jul 03 2016
Journal Name
Journal Of Educational And Psychological Researches
توظيف الشخصية في القصيدة الجديدة/ حميد سعيد انوذجا
...Show More Authors

This poem is regarded an important Harmonized structure in modern and Contemporary Culture to achieve aqualitative poem Comported with the other cultural structures inorder to discover the ego and aspiration in shaping distinctive voices.
The Iraqi poetry is affected tangibly by this poem because of the intellective vaccinating between Iraqi and Arab poets ingeneral and western cultures in particular as a result of the tranplahin movement and other important means.
The modern poet wood to ask some important characters to enrich his technician text inspite the fact that this is not a new way in Arab poetry but it takes avarant – criented to become outside the limits of rigid description within ongoing kinematic structure to be in

... Show More
View Publication Preview PDF