نتایج جستجو برای: لیزر nd yag

تعداد نتایج: 35929  

Journal: :journal of lasers in medical sciences 0
reza birang torabinejad dental research center and department of periodontic, school of dentistry, isfahan university of medical sciences, isfahan, iran. jaber yaghini torabinejad dental research center and department of periodontic, school of dentistry, isfahan university of medical sciences, isfahan, iran. elham fakhari torabinejad dental research center and department of periodontic, school of dentistry, isfahan university of medical sciences, isfahan, iran. seyed mohsen hasheminia torabinejad dental research center and department of endodontics, school of dentistry, isfahan university of medical sciences, isfahan, iran. maryam mousavi school of dentistry, isfahan university of medical sciences, isfahan, iran. mahnaz farhadzadeh school of dentistry, isfahan university of medical sciences, isfahan, iran.

introduction: various methods have been used for the treatment of dentine hypersensitivity such as dentifrices, sealants and different types of lasers. the aim of this study was to evaluate the effect of neodimium:yttrium-aluminium-garnet (nd:yag) laser in association with graphite on the dentin morphologic changes. methods: in this experimental in vitro study, 16 freshly extracted third molars...

Journal: :trauma monthly 0
carlo fornaini faculty of dentistry, university of nice sophia antipolis, nice, france; faculty of dentistry, university of nice sophia antipolis, nice, france. tel: +33-492001111, fax: +33-492001263 jean-paul rocca faculty of dentistry, university of nice sophia antipolis, nice, france

conclusions the patient reported that he did not feel pain or discomfort throughout the intervention. follow-up visits performed after one, three, six, twelve, and sixteen months demonstrated vitality of the tooth the absence of complications, as well as good esthetic results. laser technology may be used in the treatment of traumatic anterior teeth injury with advantages in terms of quality of...

Journal: :journal of dental research, dental clinics, dental prospects 0
sima shahabi reza fekrazad maryam johari nasim chiniforoush yashar rezaei assistant professor, school of dentistry, tabriz university of medical sciences

background and aims: although dental caries is a preventable disease, it is still common and remains a public health problem. one of the potentially effective preventive measures is laser irradiation. raman spectroscopy is a powerful technique for studying the microcrystalline structure of dental enamel. the study assessed the chemical alterations occurring in enamel irradiated with er:yag or n...

تک بلور YAG همزمان با دو آلاینده Ce+3 و Nd+3  بلور نسبتا جدیدی است که به عنوان محیط فعال در لیزرهای حالت جامد مورد استفاده قرار می‌کیرد. در این کار هدف رشد این بلور در جهت کریستالی ]111[ می‌باشد. برای این منظور از روش چکرالسکی و کوره القایی استفاده شد. سرعت کشش و چرخش به ترتیب 5/0 میلیمتر در ساعت و 24 دور در دقیقه انتخاب شد. پس از رشد موفقیت آمیز این بلور عملیات اپتیکی  برش، سایش و پولیش بر روی...

2017
Andreas Diagourtas Petros Petrou Ilias Georgalas Kostantinos Oikonomakis Panagiotis Giannakouras Athanasios Vergados Dimitrios Papaconstantinou

BACKGROUND To report the negative effect of Nd: Yag (Neodymium-doped: Yttrium Aluminium Garnet) laser capsulotomy on the intraocular pressure (IOP) and the trabeculectomy bleb integrity, in a small series of eyes, both trabeculectomised and pseudophakic, following the laser application for the management of posterior capsular opacification (PCO). METHODS This is a retrospective, non-comparati...

2011
A. LUPEI V. LUPEI C. GHEORGHE A. IKESUE A. Lupei V. Lupei C. Gheorghe A. Ikesue

An analysis of the high resolution optical spectra (at 10 or 300 K) of Sm in YAG transparent ceramics is presented. The peculiarities of the spectra in ceramics are outlined. Accurate data for the application of Sm: YAG ceramic to suppress parasitic oscillations in high power Nd: YAG ceramic composite lasers are obtained.

Journal: :Indian journal of dermatology, venereology and leprology 2014
Sule Güngör Tülay Sayilgan Gonca Gökdemir Deniz Ozcan

BACKGROUND Striae distensae or stretch marks are atrophic linear dermal scars with epidermal atrophy. There are many therapeutic options for management, but no consistently effective modality is available yet. OBJECTIVE We compared the efficacy of 1064 nm long pulse (LP) Nd: YAG laser and 2940 nm variable square pulse (VSP) erbium: YAG laser in the treatment of striae distensae. METHODS Twe...

Journal: :journal of lasers in medical sciences 0
mohammad asnaashari school of dentistry, shahid beheshti university of medical sciences, tehran, iran nassimeh safavi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran

removal of smear layer and disinfection of canals are important objectives of teeth root canal cleaning. in order to achieve this purpose, rinsing substances, intra canal drugs as well as ultrasound are used. today, use of laser to remove smear layer and to disinfect root canals has increasingly attracted the attentions. till now different lasers such as co2, nd:yag, er:yag, er,cr:ysgg have bee...

Journal: :journal of dentistry, tehran university of medical sciences 0
h. kermanshah mj kharazi fard

statement of problem: the achievement of a good and durable dentin/composite resin bond is an important task in restorative dentistry. the application of acid conditioners and dentin bonding agents is an accepted method to enhance this bond strength. pretreating of dentin surface by laser irradiation seems to be a supplemental way to obtain better results, since lased dentin is more roughened a...

ژورنال: :فیزیک اتمی و مولکولی 0

در این تحقیق  کیفیت اپتیکی و  عملکرد لیزری میله های لیزری ce,nd:yag مورد مطالعه تجربی قرار گرفته است. برای این منظور دو بلور ce,nd:yag رشد داده شده و از آنها میله های لیزری ساخته شده و مقایسه نسبتا جامعی از خواص اپتیکی و لیزری دو میله لیزری آنیل شده در هوا و ازت و نیز میله لیزر nd:yag  انجام شده است. و نتایج حاکی از کیفیت اپتیکی و عملکرد لیزری مناسب تر  میله لیزر ce,nd:yag  آنیل شده در ازت دارد.

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