نتایج جستجو برای: laser application

تعداد نتایج: 936548  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده پزشکی 1390

nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...

Journal: :journal of lasers in medical sciences 0
nahid ramazani assistant professor, department of pediatric dentistry, research center for children and adolescents health, zahedan university of medical sciences, zahedan, iran. rahil ahmadi assistant professor, department of pediatric dentistry, shahed university of medical sciences, tehran, iran. mohammad daryaeian graduate student of department of endodontics, shahed university of medical sciences, tehran, iran.

it is of utmost importance to make children interested in and willing to use dental services in order to prevent and treat oral diseases. therefore, pediatric dental practitioners need to learn new technologies such as lasers, in addition to basic principles. lasers have opened new horizons in the treatment of both soft and hard oral tissue problems in children. the present article describes ap...

Journal: :journal of lasers in medical sciences 0
maryam karandish orthodontic department, school of dentistry, shiraz university of medical sciences, shiraz, iran

used in conjunction with or as a replacement for traditional methods, it is expected that specific laser technologies will become an essential component of contemporary dental practice over the next decade. the current review is designed to focus on the acid resistance of laser application and tries to introduce laser settings capable to achieve this feature for clinical application. applicatio...

Mojtaba Namdar, Reza Fekrazad, Samaneh Razeghi, Sara Ghadimi,

Background and Aim: Previous studies revealed improved enamel caries resistance after laser irradiation. Present in vitro study evaluated the effect of Er,Cr:YSGG laser with or without topical fluoride application on microhardness of primary enamel after artificial demineralization. Materials and Methods: In this in vitro study, 35 primary molars with sound surfaces were bisected and randomly ...

ژورنال: مجله دندانپزشکی 2015
خامی, محمد رضا , رازقی, سمانه , قدیمی, سارا ,

Background and Aims: Despite significant decline in dental caries in recent decades, the disease remains a public health problem especially in developing countries. In recent years combined application of laser and fluoride has been introduced as a new caries-preventive measure. The purpose of the present study was to review the literature on the preventive effect of combined application of ...

Journal: :journal of lasers in medical sciences 0
ehsan azma nassimeh safavi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran

introduction: diode laser with wavelengths ranging from 810 to 980 nm in a continuous or pulsed mode was used as a possible instrument for soft tissue surgery in the oral cavity. discussion: diode laser is one of laser systems in which photons are produced by electric current with wavelengths of 810, 940 and 980nm. the application of diode laser in soft tissue oral surgery has been evaluated fr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...

Journal: :journal of lasers in medical sciences 0
sara ghadimi assistant professor of pediatric dentistry, laser research center of dentistry (lrcd), tehran university of medical sciences, tehran, iran nasim chiniforush laser research center of dentistry (lrcd), tehran university of medical sciences, tehran, iran stephane ayoub bouraima laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran maryam johari student of dentistry, tehran university of medical sciences, tehran, iran

the application of laser in dentistry is considered as a favorable technique for patients due to its many advantages compare to other current methods. one of the main goals in pediatric dentistry is to provide the treatment as comfortable as possible without any risks for the care. laser is being used in different pediatric dental conditions including caries detection, caries removal and cavity...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده مهندسی 1387

چکیده ندارد.

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1380

چکیده ندارد.

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