نتایج جستجو برای: scotch bond
تعداد نتایج: 70879 فیلتر نتایج به سال:
در این پژوهش تلاش شده است تا با انجام مشاهدات مستقیم آزمایشگاهی بر حدود تاثیرگذاری سه پارامت "سیکل های گرم وسرد شدن لوله" و "زبری سطح ورق فولاد" و همچنین "دامنه تغییرات دما" بر یک معیار مقاومتی مرتبط همچون مقاومت پیوستگی (bond strength) بین پوشش و فولاد تعیین گردد.
Ultrasonic scaling of class V composite or glass Ionomer restorations may cause destructive effects. The purpose of this study is to investigate the effects of ultrasonic scaling on the marginal leakage of composite and Glass Ionomer restorations. An in-vitro study was performed on thirty- two upper and lower premolar teeth, free of any kind of caries, cracks or facets. Class V cavities, with t...
Evaluation of healing in the periapical lesions of dogs with or without obturation in prepared root canals Dr. MH Nekoofar* - Dr. D. Shirani ** - Dr. P. Motahari*** - Dr. S. Khanzadi**** - Dr. M. Ghandi***** *- Assistant Professor of Endodontics Dept. - Faculty of Dentistry - Tehran University of Medical Sciences. **- Assistant Professor of Internal Medicine Dept. Faculty of Veterinary – Tehran...
Dr. Norman Macfadyen has resigned the position of Medical Officer of Health for Letchworth, as he is seeking fuller public service. The Rotherham Hospital has decided not to combine with the penny in the pound put forward by the Sheffield Hospitals Joint Committee. The Supreme Court in Cape Town lately awarded damages to a patient who had not given his consent to a serious operation performed o...
بررسی تأثیر آلودگی بزاقی بر روی قدرت باند برشی سه نوع سیستم مختلف مواد چسبنده عاجی (یک مرحله ای، دومرحله ای و سه مرحله ای) دکتر حمید کرمانشاه* - دکتر حبیب حاج میرآقا** - دکتر شاپور گتوئی زاده*** *- استادیار گروه آموزشی ترمیمی دانشکده و مرکز تحقیقات دندانپزشکی دانشگاه علوم پزشکی تهران. **- استادیار گروه آموزشی پروتزهای دندانی دانشکده و مرکز تحقیقات دندانپزشکی دانشگاه علوم پزشکی تهران. ***- دندان...
We surveyed Karen hilltribe villages in the Mae Chaem District of Chiang Mai Province between April and May 2001. Two hundred and forty-nine pre-school children were selected by stratified sampling from 10 villages and were examined for Enterobius vermicularis eggs by the Scotch tape perianal examination technique. One hundred and thirteen (53 boys and 60 girls) were found to have E. vermicular...
This paper discusses about advanced disk storage necessary for distributed systems. It briefly discusses the disk storage research and the various storage systems developed. Among them the Petal, distributed virtual disks developed at the systems research center, Digital Equipment Corporation and PersonalRaid, mobile storage for distributed and disconnected computers developed at Princeton Univ...
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