بررسی نتایج جرم گیری دندان توسط دو دستگاه magnetostrictive و piezoelectric در شرایط in vitro.
thesis
- وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید صدوقی یزد - دانشکده دندانپزشکی
- author مهتاب احمدی
- adviser رضا ملا سولماز اکبری
- Number of pages: First 15 pages
- publication year 1386
abstract
چکیده ندارد.
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Magnetostrictive Actuators Compared to Piezoelectric Actuators
Magnetostriction occurs in the most ferromagnetic materials and leads to many effects [1,2]. The most useful one to refer to is the Joule effect. It is responsible for the expansion (positive magnetostriction) or the contraction (negative) of a rod subjected to a longitudinal static magnetic field. In a given material, this magnetostrain is quadratic and occurs always in the same direction what...
full textA comparison of magnetostrictive and piezoelectric ultrasonic scaling devices: an in vitro study
PURPOSE The effects of magnetostrictive and piezoelectric devices on tooth surfaces seem to differ with regard to the root surface roughness they produce. This study aimed to compare the results of scaling using magnetostrictive and piezoelectric devices on extracted teeth. METHODS Forty-four human extracted teeth were assigned to four study groups (n=11). In two groups (C100 and C200), the t...
full textA comparative evaluation of the efficacy of manual, magnetostrictive and piezoelectric ultrasonic instruments – an in vitro and SEM study
1BDS, Post Graduate student, Department of Periodontics, Manipal College of Dental Sciences, Manipal University, Mangalore, Karnataka, India. 2MDS, Professor, Head Department of Periodontics, Manipal College of Dental Sciences, Manipal University, Mangalore, Karnataka, India. 3MDS, Professor, Associate Dean, Department of Periodontics, Manipal College of Dental Sciences, Manipal University, Man...
full textA comparative evaluation of the efficacy of manual, magnetostrictive and piezoelectric ultrasonic instruments - an in vitro profilometric and SEM study
OBJECTIVES The debridement of diseased root surface is usually performed by mechanical scaling and root planing using manual and power driven instruments. Many new designs in ultrasonic powered scaling tips have been developed. However, their effectiveness as compared to manual curettes has always been debatable. Thus, the objective of this in vitro study was to comparatively evaluate the effic...
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سابقه و هدف: در سال‌های اخیر تولید لیپید و کاروتنوئید با استفاده از ریزسازواره یک روش جایگزین برای استفاده از منابع متداول گیاهی و جانوری مورد توجه فراوان قرار گرفته است. در این تحقیق تولید این دو ماده با ارزش توسط مخمر مولد لیپید رودوسپوریدیوم دایوبوواتوم در شرایط In vitro بررسی و نتایج حاصل مقایسه گردیدند. مواد و روش‌ها: تأثیر دو منبع کربنی گلوکز (217 میلی‌مولار) و گلیسرول (434 میلی‌مولار) در...
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document type: thesis
وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید صدوقی یزد - دانشکده دندانپزشکی
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