Effect of peroxide bleaching gel preparations on light-cured glass-ionomer restorative materials: hardness and tensile strength 1

The purpose of this study was to evaluate the effect of peroxide bleaching gel preparation on the hardness and tensile strength of restorative glass ionomer materials. The results showed that there were significant reductions in hardness and tensile strength of the tested materials

Effect of peroxide bleaching gel preparations on light-cured glass-ionomer restorative materials: enamel bond strength and color change II

The purpose of this study was to evaluate the effect of bleaching gel preparations on the enamel bond strength and color change of light-cured glass ionomer restorative materials. The results showed that there were significant reduction in bond strength and color changes of all tested materials

Some pulmonary function tests in patients with idiopathic mitral valve prolapse

The material of the present study comprised 36 patients with idiopathic MVP. There is no apparent direct effect of age, sex or the severity of MVP on the pulmonary function tests [except a significant reduction to% of predict of FEF25-75 in patients with age less than 20 years]. This can be explained by the small number of cases in the study or by the effect of other factors i.e. Autonomic dysfunction, exercise intolerance...etc. However, there is some significant positive correlation of some pulmonary function tests in relation to left atrial size mainly in cases with severe MVP. This controversy can be clarified by further study comprising large number of patients and using spirometric ventilatory scanning and arterial blood gases especially in patients with dyspena

Pre-tragal creases, versus ear lobe crease in coronary artery disease

The aim of the present work is to evaluate the association of pretragal creases and diagonal ear lobe crease and correlating it to obesity, hyperlipidemia and CAD. 50 male patients under the age of 50 years presenting with acute MI and 20 male normal controls has been studied as regard the presence of ear lobe and pretragal creases, as well as BMI [body mass index], waist/hip ratio, electrocardiogram, S. cholesterol, S. Triglycerides, HDL and LDL. Exclusion criteria include, D.M., hypertension, endocrinal diseases, COPD and females. The results showed 90% with pretragal creases and 60% with ear lobe crease. All patients with ear lobe and pretragal creases showed increase of S. cholesterol, S. triglycerides and LDL when compared to control. Patients with combined ear lobe and pretragal creases showed highly significant reduction of height and highly significant increase of waist/hip ratio. There is positive correlation of patients with pretragal creases with waist circumferences, waist/hip ratio and HDL. Specificity was 70% and 90% of ear lobe and pretragal creases while sensitivity was 59.3% and 89%, respectively

Cryptosporidiosis a possible cause of enteritis in immunocompetent persons

Out of 130 patients complaining of gastroenteritis with no a detected parasite. Oocysts of cryptosporidium species were detected in the fecal samples of 10 persons. The prevalence of infection was higher among rural inhabitants than City dwellers. Also, children below 15 years of age were more commonly affected than adults