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Influence of Fluoride Content of Artificial Saliva on Metal Release from 17-4 PH Stainless Steel Foam for Dental Implant Applications

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Journal of Materials Science & Technology 2013年第6期29卷 582-588页

作者： Ilven Mutlu enver oktay Department of Metallurgical and Materials Engineering Istanbul UniversityIstanbulTurkey

Highly porous 17-4 PH stainless steel foam for implant applications was produced by space holder technique. Metal release and weight loss from 17-4 PH stainless steel foams were investigated in fluoride added artificial saliva environment by static immersion test. An inductively coupled plasma-mass spectrometer was employed to measure the concentrations of various metal ions. Effects of fluoride content of artificial saliva on metal release and weight loss from the steel foams were investigated. Effects of immersion time, pH value and process parameters on the weight loss and metal release were determined. Pore morphology, pore size and mechanical properties of the 17-4 PH stainless steel foams were also characterized.

关键词： Metal release Dental implant Metal foam Fluoride Artificial saliva

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Alvarado, Eskelinen, Ohhmann and Raja Isteri Pengiran Anak Saleha Appendicitis scores for diagnosis of acute appendicitis

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World Journal of Gastroenterology 2013年第47期19卷 9057-9062页

作者： Hasan Erdem Süleyman etinkünar Koray Das enver Reyhan Cumhur Deger Mehmet Aziret Hilmi Bozkurt Seluk Uzun Selim Szen oktay rkrücü Department of General Surgery Adana Numune Training and Research HospitalAdana 01240Turkey

AIM:To assess the reliability and practical applicability of the widely used Alvarado,Eskelinen,Ohhmann and Raja Isteri Pengiran Anak Saleha Appendicitis(RIPASA)scoring systems in patients with suspected acute ***:Patients admitted to our tertiary center due to suspected acute appendicitis constituted the study *** were divided into two *** group(Group A)consisted of patients who underwent appendectomy and were histopathologically diagnosed with acute appendicitis,and non-appendicitis group(Group N-A)consisted of patients who underwent negative appendectomy and were diagnosed with pathologies other than appendicitis and patients that were followed *** operative findings for the patients,the additional analyses from follow up of the patients and the results of those analyses were recorded using the follow-up ***:One hundred and thirteen patients with suspected acute appendicitis were included in the *** the 113 patients(62 males,51 females),the mean age was 30.2±10.1(range 18-67)*** the 113patients,94 patients underwent surgery,while the rest were followed *** the 94 patients,77patients were histopathologically diagnosed with acute *** study showed a sensitivity level of81%for the Alvarado system when a cut-off value of 6.5was used,a sensitivity level of 83.1%for the Ohmann system when a cut-off value of 13.75 was used,a sensitivity level of 80.5%for the Eskelinen system when a cut-off value of 63.72 was used,and a sensitivity level of 83.1%for the RIPASA system when a cut-off value of 10.25 was ***:The Ohmann and RIPASA scoring systems had the highest specificity for the diagnosis of acute appendicitis.

关键词： Acute appendicitis Alvarado Eskelinen Ohhmann Raja Isteri Pengiran Anak Saleha Appendicitis

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