نتایج جستجو برای: htco post
تعداد نتایج: 404466 فیلتر نتایج به سال:
introduction: prefabricated metal and ceramic posts can be used with different kinds of core materials as an alternative to the conventional casting post and cores. it is unclear how these post and core systems can withstand different kind of forces in the mouth. the purpose of this study was to compare the fracture strength of endodontically treated, crowned maxillary incisors restored with ca...
the effect of local injection of epinephrine and bupivacaine on post-tonsillectomy pain and bleeding
introduction: tonsillectomy is one of the most common surgeries in the world and the most common problem is post-tonsillectomy pain and bleeding. the relief of postoperative pain helps increase early food intake and prevent secondary dehydration. one method for relieving pain is peritonsillar injection of epinephrine along with an anesthetic, which has been shown to produce variable results in ...
the primary goal of the current project was to examine the effect of three different treatments, namely, models with explicit instruction, models with implicit instruction, and models alone on differences between the three groups of subjects in the use of the elements of argument structures in terms of toulmins (2003) model (i.e., claim, data, counterargument claim, counterargument data, rebutt...
introduction: many studies have been performed to evaluate the stress distribution around endodontic posts; those which compared posts composed of different materials are rare. the aim of this study was to compare stresses induced in dentin by three structurally different posts using photoelasticity method. materials and methods: nine blocks of psm-5 photoelastic material with 45×45×10 mm dimen...
این تحقیق با هدف بررسی اثر post task در زبان دوم بود عملکرد دهان آموزان، این است که، اثر انتخاب یک نوع کار، و همچنین عنوان، شرایط پیاده سازی های مختلف، بر روانی، دقت، و پیچیدگی زبانی است که زمانی که کار انجام شده بود تولید شد. را به انجام برسانند 90 دانش آموز دختر در سطح متوسط ??بالای زبان مهارت مدرسه زبان شکوه در مشهد از میان 120 نفرانتخاب شدند ، بر اساس عملکرد آنها در آزمون toefl و همچنین ...
this study investigated the effect of prior knowledge on the listening comprehension performance of fl learners. twenty students, male and female, drawn from the two intact groups of the senior and junior english language and literature majors were chosen as the participants of this study . the two groups were then randomly assigned into the experimental and control group. the experimental gr...
this study was an attempt to investigate and compare the effect of lexical inferencing and concept mapping on developing vocabulary retention of iranian language learners. sixty homogeneous students from different intact classes who were being taught as intermediate learners in sokhan english institute participated in this study. they were in different classes. a teacher made test as a pre-test...
nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...
introduction: application of light transmitting posts to restore greatly damaged endodontically treated teeth has been increased. it is suspected that light intensity decreases as it passes throughout different materials. this can reduce the degree of conversion required for adequate bond strength throughout the length of these posts. the objective of this study was to evaluate the amount of li...
statement of problem: currently there are three recognized theories about the diameter of prepared dowel space in endodontically treated teeth. diameter of the dowel is commonly contributed to the root fracture. purpose: this study used a 3 dimensional (3d) finite element method to predict stress distribution in endodontically treated central maxillary tooth with cast post and core with various...
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