Aims: This study was done to investigate the effect of low energy laser therapy on bone healing at the extraction site. Materials and methods:(24) male albino rats were exposed to the extraction procedure of the maxillary first molar on the first day of a seven day experiment and these animals were divided into two main groups; the control group and the laser group. The laser experiment involved using (Ga-As infrared diode laser) from optodent by directing the probe over the extraction site. The control group consisted of 4 rats, and the laser group was subdivided into 5 subgroups of 4 rats each. The laser dose was as follows: B1: a single dose of 5 minutes immediately after extraction., B2: a single dose of 35 minutes immediately after extraction., B3: 7 doses for 7 days as 5 minutes /day from day 1-7., B4: 3 doses for 3 days as 10 minutes /day at days 1, 2, 3., B5: 3 doses for 3 days as 10 minutes/day at days 4, 5, 6., The specimens were prepared for histological study, then examined under light microscopy, Results: They revealed a difference in the rate of bone healing between the control and laser groups and multiple doses of low energy laser were effective in enhancing bone formation than the single dose, showing that retardation in the healing may be due to the anti-inflammatory effect of the laser or due to upset of inflammation by mast cells. The healing of the bone in (B5) group was much prominent than in other groups. Conclusions: low energy laser may be beneficial in the enhancement of healing which will minimize the infection, and reduce patient suffering and the incidence of post-extraction complications.
معيار القصديَّة في النص هو من الدراسات الحديثة المتطورة من لسانيات الجملة الى لسانيات النص ، وتحليل الخطاب . والذي يعنى بالطرق والأدوات التي يستغلها المؤلف لتحقيق الغايات المقصديَّة
وهذا البحث ناقش مفهوم(القصديَّة) لغةً ،واصطلاحاً . فاللغة والكلام شكل من أشكال الوجود الإنساني و( الكلام) هو وسيلة التواصل بين الملقي القارئ ، والمتلقي السامع ؛ وللتوصل الى الدلالة القصديَّة الدقيقة للغة المنطوقة وا
... Show MoreThe scientific heritage is an essential part of the civilization of nation , so Nations has focused on this aspect in the construction of civilization. So the Arab prosperous scientific achievements is no exception to this general rule in being an integral part of the composition of the Arab- Islamic civilization part ,and when we read in the Arab –Islamic medicine books ,we find the genius of the Arab and Muslims physicians and their own new methods of treatment they use music melodies in medication and treatment of patients
The thesis discusses the concept of the new international regionalism that emerged after the growing effects and repercussions of globalization with its economic, political and security dimensions after the end of the Cold War and the crystallization of a different international system dominated by the United States of America, so that the major countries and actors in the international system realize the danger of globalization and move towards adopting regional arrangements to contain the negative effects of globalization. The Asia-Pacific model was chosen as a model for the study.
The problem of the study lies in the need for standing on the justifications, reasons and difficulties that face the scientific research matter at Baghdad university. The importance of this study lies in the fact of being scientific research one of the most important methods in developing the teaching members performance efficiency which contributes in teachers contact with the modern developments that emerge in work. That matter which reflexe on the educational process and the scientific production in their universities.
And the research goal is summarized in identifying the difficulties that is facing the scientific research at Baghdad university from the point of view of the lecturers, and also to ide
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We must live in an era dominated by the call for equality between men and women, in which the voices of advocates of gender integration were heard. After women opened their doors to compete with their brother, Knowledge, and culture in the various forms of life, language as a science of the time and knowledge of the other had to match this reality and express the most accurate expression of this task