The long healing time of bone after tooth extraction in order to construct artificial teeth is uncomfortable to the patient because of aesthetic or masticatory problems in addition to the daily visit to dental clinic. The objective of this study was to evaluate the effect of 805 nm diode laser with long time intervals on repair of bone and skin incisions in rabbits through biochemical, radiological and histological findings. Eighteen New-Zealand rabbits were undergone surgical operations to make a cavity in the bone of the lower jaw, the rabbits were divided into two groups:- Group A (control group) containing nine rabbits. Group B (lased group) containing nine rabbits in which two cavities were done, one on the right side and the other on the left side of the mandible. The cavities were subdivided into two groups according to the exposure time. Group B1 (the right side) which was underwent treatment with 805 nm continuous diode laser with output power of 900mW and exposure time of 5 min, every 72 h for two weeks. Group B2 (the left side) which was underwent treatment with 805 nm continuous diode laser with output power of 900mW and exposure time of 10 min, every 72 h for two weeks. The diode laser with a wavelength of 805 nm, power 900 mW and operating on continuous mode was applied directly over the site of the cavity according to the group. Radiological findings, histological and biochemical evaluations for both bone and skin were done for all groups after 7, 14 and 28 days of follow up. The histological results showed that there was a complete wound healing and bone repair at day 28 postoperatively in sub group B2 which is represented by the group treated with 805 nm diode laser with exposure time of 10 min, every 72 hours. In conclusion, the 805 nm continuous wave diode laser with power density of 1.79 W/cm2 and exposure time of 10 min, every 72 h for two weeks was beneficial to stimulate healing in bone and skin.
مشكلة البحث
لقد تفاقمت مشكلة تلوث البيئة في السنوات الأخيرة من العقد الأخير والعقد الأول من القرنين العشرين والحادي والعشرين على التوالي بشكل يلفت النظر. إذ انتشر الاستعمال غير العقلاني للموارد الطبيعية من مياه ملوثة وسكن غير صحي وغير ملائم وسؤ التغذية وظروف الصحة العامة الرديئة وانتشار العوادم التي تحدثها المركبات والمولدات التي انتشرت في أحياء المدن العراقية لتزوي
... Show MoreThe main target of this paper is to determine the optimum time for preventive maintenance on machines. Tow methods has been implemented estimating the optimum time duration for preventive maintenance . the first techniques use scheduling depending on data concerning the machine maintenance cost and halted cost from the production reach to the optimum time for maintenance which reflect the minimum cost. Where as the second techniques depends on reability function to estimate the optimum duration time which reflect the minimum cost. The tow techniques above by which we count on in fixing the preventive maintenance both give same result . we also prove that the scheduling method best than the reability function .
يأخذ هذا النوع من الدراسات أهميته في مجال الدراسات التاريخية لاسيما انه يقوم على أساس البحث والتقصي عن بعض الظواهر في المعاجم كونها تمثل المصدر الأساسي الذي وجدنا فيه الجزء الأعظم من تلك المادة المفقودة لكتاب النبات لابو حنيفة الدينوري.
تناول البحث موضوعاً شديد الأهمية وهو الأمن الاجتماعي منظور اليه في سياق الحماية الجنائية لأمن الدولة والتحديات التي يتعرض لها بعد حصول تغيير حاسم في أساليب الحرب. كما يقدم البحث تقسيماً مختلفاً لأجيال الحروب نقتصر على اربعة منها استناداً إلى التغيير في أهداف الحرب الاستراتيجية وليس إلى مجرد وسائل ارتكابها لان هذه الوسائل لا تصلح لوصف التغييرات الحقيقية في أنماط الحروب والاهداف التي تسعى إلى تحقيقها. ويؤكد
... Show MoreThe message of the Kurdish tag tagged with(Mada alfay fi taqrir lays kamithlih shay) one of his most prominent scientific messages in the door of faith, especially in the matter of the unification of the divine self and its distancing from all analogies and representations and the importance of this message historically, due to its documentation of a stage in the development of Islamic speech thought, where the logical method was taken over the minds of the intellectuals of Islam, including the kurani, whether it is in understanding the quranic and modern meaning or as a way of convincing me towards the opponent.
The Kurd was able to use logical concepts to marginalize the difference between grammarians and interprete
... Show MoreThe energy consider generally and specifically the petroleum energy
from the prior requirement of the population and nations, and the basics of the
survival of mankind and all the challenges for the sake of continuum, so
without this energy the life of ankind being varied, so far the life is still as a
fact on the planet earth, and suppose the life may continue as the willing of
Allah ,that the events and the standards and the degree of development is still
as it is, in another word no any technical developments and no any
entertainment no transportation and also there is no demographic domination
for the whole lands belonging to Allah, certainly no way to talk more on what
we and the others knew, what is the g
That art and poetic creativity is not associated with a certain time and place and that artistic inspiration is a gift from God loved to a group of individuals so that their experiences be simulated speaking to the insides of the human self and that the creativity of the artist poet lies in the purpose of what is familiar and accepted and mocked for this purpose to
Praise be to God, who is by His Power, righteous is done, and by His help to slaves who He likes, and God bless our Prophet Muhammad envoy mercy to the worlds, and upon his family and the good mates until Doomsday.After:
The fact that cursing is the far distance and expulsion from the mercy of God, curse has been proven by him - peace be upon him - for the many varieties in the Sunnah, with indication of a permit cursing the insurgents from the people of Qibla, either saying - peace be upon him -: (the believer never be as a curser ...), what is meant by those who do not deserve damnation of those not cursed God and His Messenger, and for this we must remove words cursing from the Dictionary of our words following the examp
... Show Moreالمستخلص
تتميز هذه الورقة بتناولها موضوعاً يخشى الكثيرون الخوض فيه للملابسات الدائرة حوله، وهو اصحاب المصالح كموضوع مهم في الفكر الستراتيجي. فخاضت في مفاهيمه العامة وتصنيفاته ومنظوراته، ووجدت في مفهومه بأنهم اولئك الذين يمكن تمثيلهم بالمجاميع او الوحدات المستقلة التي ترتبط بمنظمة الاعمال عبر شبكة علاقات مؤثرة مختلفة الابعاد والاتجاهات، واذا ما حدث أي خلل في توازن هذه العلاقات، قد ت
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