نتایج جستجو برای: nd yag lasers
تعداد نتایج: 56478 فیلتر نتایج به سال:
introduction: the aim of this study is to evaluate the effects of low-level neodymium-doped yttrium aluminium garnet (nd:yag) laser irradiation on orthodontic tooth movement and histological examination. methods: eleven male wistar rats (aged 10 weeks) were included. to produce experimental tooth movement in rats, 10 g force was applied to maxillary first molars with nickel titanium closed coil...
در این تحقیق، طراحی و ساخت قطبشگر برای هماهنگ دوم لیزر nd:yag انجام شد. این قطبشگر کاربردهای فراوانی مانند مشخصه یابی قطعات غیرخطی دارد. از لایه نشانی چندگانه جهت بهینه سازی تراگسیل مؤلفه p و بالا بردن انعکاس مؤلفه s به روش انباشت فیزیکی در خلاء(pvd) استفاده شد.سپس با استفاده از طیف سنجی درصد تراگسیل مؤلفه p قطبشگر ساخته شده 4/96 و درصد انعکاس مؤلفه s، 47/2 بدست آمد..
مقدمه: سیل آپیکالی نقش مهمی در موفقیت درمان کانال ریشه دارد و لایه اسمیر باعث کاهش سیل آپیکالی می شود. هدف این مطالعه بررسی آزمایشگاهی تأثیر تابش لیزر (neodymium- doped yttrium aluminum garnet ) nd:yag بر سیل آپیکالی، در دندان های درمان ریشه شده، با استفاده از روش filtration fluid بود. مواد و روش ها: در این مطالعه آزمایشگاهی تعداد 44 دندان سانترال ماگزیلای انسانی انتخاب شد. بعد از آماده س...
Neodymium: Yttrium-Aluminum-Garnet (Nd-YAG) laser treatment of epithelial ingrowth was found promising with high success rates in cases of primary post-LASIK epithelial ingrowth. However, the application range of this procedure is not well-known. For the first time, the authors report the outcome of a patient treated with Nd-YAG laser for multiple recurrences of post-laser in situ keratomileusi...
BACKGROUND Axillary hyperhidrosis is a common but difficult-to-treat condition with major social, labor, and emotional consequences. OBJECTIVE The aim of this study is to present the Nd-YAG laser as a safe and effective option for the treatment of axillary hyperhidrosis. MATERIALS AND METHODS From January 2002 to April 2007, 17 patients (15 women and 2 men) with axillary hyperhidrosis were ...
AIM To evaluate the outcome of laser iridotomy using 532-nm Nd: YAG laser (PASCAL) with short pulse duration and Nd: YAG laser compared to conventional combined laser iridotomy. METHODS Retrospective, nonrandomized, comparative case series. Forty-five eyes of 34 patients underwent laser iridotomy. Twenty-two eyes underwent iridotomy using short duration PASCAL and Nd: YAG laser, and 23 eyes u...
Posterior capsular opacification, also known as after cataract develops in 33 % of patients after uneventful cataract surgery. Nd-YAG Laser capsulotomy is the treatment of choice for PCO and is routinely performed by the general ophthalmologist on an OPD basis. Endophthalmitis, although a rare complication after Nd-YAG Laser capsulotomy, has been reported in the literature. We report a case of ...
Ten eyes of nine patients were treated for very disturbing vitreous floaters with the technique of Nd-YAG laser vitreolysis. The Scanning Laser Ophthalmoscope (SLO) was used to objectivate the position, the size and the motility of the vitreous floaters with respect to the patient's visual axis, which can be precisely located with the SLO. With this technique it was possible to define more prec...
Clinical application of lasers in periodontal surgery has continued to expand in the last decade; however, controversies remain regarding their use. This article will describe the clinical application of erbium: YAG lasers for periodontal surgery: flap operations, osseous surgery, and semi-lunar coronally repositioned flap procedures, and peri-implantitis treatment by laser will be discussed.
This article is devoted to the study of possibility passivation iron-based metallic materials. The experimental results obtained for laser treatment carbon steel model samples by radiation repetitively pulsed and continuous-wave 1.064 µm Nd:YAG lasers are described. It shown that allows formation dense protection films, 62–77 microns thick, on surface. films enhance anticorrosion properties met...
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