کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3132269 1584126 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chemical and structural analyses of titanium plates retrieved from patients
ترجمه فارسی عنوان
تجزیه و تحلیل شیمیایی و ساختاری از صفحات تیتانیوم بازیابی شده از بیماران
کلمات کلیدی
تیتانیوم، شکستگی شکستن - داخلی، دستگاه های ثابت - داخلی، جراحی ارتوگناتیک، صفحات استخوانی، پیچ استخوان
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
چکیده انگلیسی

The aim of this study was to evaluate the microscopic structure and chemical composition of titanium bone plates and screws retrieved from patients with a clinical indication and to relate the results to the clinical conditions associated with the removal of these devices. Osteosynthesis plates and screws retrieved from 30 patients between January 2010 and September 2013 were studied by metallographic, gas, and energy dispersive X-ray (EDX) analyses and the medical records of these patients were reviewed. Forty-eight plates and 238 screws were retrieved. The time elapsed between plate and screw insertion and removal ranged between 11 days and 10 years. Metallographic analysis revealed that all the plates were manufactured from commercially pure titanium (CP-Ti). The screw samples analyzed consisted of Ti–6Al–4V alloy, except four samples, which consisted of CP-Ti. Titanium plates studied by EDX analysis presented greater than 99.7% titanium by mass. On gas analysis of Ti–6Al–4V screws, three samples were outside the standard values. One CP-Ti screw sample and one plate sample also presented an oxygen analysis value above the standard. The results indicated that the physical properties and chemical compositions of the plates and screws did not correspond with the need to remove these devices or the time of retention.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Oral and Maxillofacial Surgery - Volume 44, Issue 8, August 2015, Pages 1005–1009
نویسندگان
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