نتایج جستجو برای: class ii
تعداد نتایج: 937192 فیلتر نتایج به سال:
Background: Different studies have demonstrated that a small proportion of healthy individuals receiving the hepatitis B (HB) vaccine do not produce protective levels of anti-HB antibody, a phenomenon which could be linked to certain human leukocyte an-tigen (HLA) class-II alleles or haplotypes. Objectives: The present study was under-taken to determine the frequency of HLA class-II alleles in ...
Background and Aims: Iatrogenic damage to adjacent tooth during proximal cavity preparation is one of the most common side effects in operative dentistry. The aim of this study was to determine prevalence of iatrogenic damages to adjacent tooth during the preparation of proximal Class II cavities among undergraduate students at dental faculty of Tehran University of Medical Sciences in 2010 ....
Introduction: The aim of this study was to evaluate the effect of proximal contour of class II composite restorations placed with straight or contoured matrix band using composite resins with different modulus of elasticity on stress distribution by finite element method. Methods: In order to evaluate the stress distribution of class II composite restorations using finite element method, upper ...
The most severe endemia of our time, iodine deficiency affects more than one billion people worldwide. Two hundred Million cases of goiter and six million of creatinism have recorded worldwide. Iodine deficiency disorders (IDD) is the most health problem of our country. In a prospective study, the prevalence and clinical staging of endemic goiter in 16054 students (8262 male and 7792 fe...
Major histocompatibility complex (MHC) class II molecules are ligands for CD4(+) T cells and are critical for initiating the adaptive immune response. This review is focused on what is currently known about MHC class II organization at the plasma membrane of antigen presenting cells and how this affects antigen presentation to T cells. The organization and diffusion of class II molecules have b...
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