نتایج جستجو برای: Lasers

تعداد نتایج: 23539  

Journal: :journal of lasers in medical sciences 0
behrooz barikbin laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran skin research center, shahid beheshti university of medical sciences, tehran, iran azin ayatollahi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran somayeh hejazi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran zahra saffarian laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran sara zamani department of dermatology, rasoul-e- akram hospital, tehran university of medical sciences, tehran, iran

according to the english literature, various lasers and light sources (i,g. argon ion lasers, pulsed ktp lasers, diode lasers and nd:yag lasers, pulsed dye laser(pdl), intense pulsed light sources (ipls) are applicable for the treatment of different vascular lesions. these conditions are the most important indication for laser therapy. this review summarizes the current literature on ipl with r...

P. Mildren, R.,

Solid-state Raman lasers are known as important sources at normally difficult to access wavelengths, and our recent studies have shown that they also form the basis of a class of wavelength selectable lasers. This paper summarizes our recent studies in wavelength selectable Raman lasers in the visible (532-650 nm) and ultraviolet (266-321 nm). 

Journal: :journal of lasers in medical sciences 0
mohammad asnaashari department of endodontic, 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

low level lasers, cold or soft lasers: these lasers do not produce thermal effects on tissues and induce photoreactions in cellsthrough light stimulation which is called photobiostimulation. power of these lasers is usually under 250mw. the main point differentiating low level lasers and high power ones is the activation of photochemical reactions without heat formation. the most important fact...

Background and Aim: Lasers can serve as a new powerful tool in dentistry. High intensity laser therapy is becoming the treatment of choice compared with conventional periodontal therapy due to accurate incision and soft and hard tissue ablation, hemostasis, reduction of postoperative pain and infection, optimal debridement, and enhanced healing. Although high intensity laser therapy assumes to ...

Journal: :journal of lasers in medical sciences 0
seyyed amir seyyedi assistant professor, department of oral medicine, urmia dental school ehsan khashabi department of periodontics, urmia university of medical sciences,urmia, iran farnaz falaki department of oral medicines, mashhad university of medical sciences, mashhad, iran

introduction: the use of lasers for treatment has become a common phenomenon in the medical field. currently, numerous laser systems are available for dental use. the use of lasers for periodontal treatment becomes more complicated because the periodontium consists of both hard and soft tissues. methods: related articles were gathered and selected carefully and reviewed. among the many lasers a...

ژورنال: مجله دندانپزشکی 1994
رهبری, غلامحسین , مطوریان, عبدالامیر , یاسینی, اسماعیل ,

Today laser has a lot of usage in medicine and dentistry. In the field of dentistry, laser is used in soft tissue surgery, sterilization of canals (in root canal therapy) and in restorative dentistry laser is used for cavity preparation, caries removal, sealing the grooves (in preventive dentistry), etching enamel and dentin, composite polymerization and removal of tooth sensitivity. The use of...

Journal: :journal of lasers in medical sciences 0
ena mathur department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india mohit sareen senior lecturer, department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india payal dhaka senior lecturer, department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india pallavi baghla senior lecturer, department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india

introduction: lasers have made tremendous progress in the field of dentistry and have turned out to be crucial in oral surgery as collateral approach for soft tissue surgery. this rapid progress can be attributed to the fact that lasers allow efficient execution of soft tissue procedures with excellent hemostasis and field visibility. when matched to scalpel, electrocautery or high frequency de...

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...

Journal: :journal of lasers in medical sciences 0
mohammad reza razaghi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran. mohammad mohsen mazloomfard laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran. babak javanmard laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran. reza mohammadi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran. anahita ansari jafari laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran.

introduction: male urethral stricture is a complicated urologic disease that could be successfully treated using internal urethrotomy. laser internal urethrotomy has been used in many cases with favorable outcome in many studies. holmium: yag laser with its incisional properties on tissue is one of the laser types applied for internal urethrotomy. methods: we present a 19 year-old male with his...

Journal: :journal of dental research, dental clinics, dental prospects 0
hamid reza khalighi fahimeh anbari jamileh beigom taheri sedigheh bakhtiari zahra namazi firoz pouralibaba

low-power lasers are a group of lasers with a power less than 250 mw and unlike high-power lasers they have no effect on tissue temperature; they produce light-dependent chemical reactions in tissues. these lasers have analgesic features with their ability to trigger reactions that reduce pain and inflammatory mediators. low-power lasers can also be used instead of needles in acupuncture to dec...

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