نتایج جستجو برای: ndyag laser
تعداد نتایج: 183633 فیلتر نتایج به سال:
Introduction: Skin cancer has been increased day by day, but it can be cured if it diagnosed early. After reviewing the scientific literature about 980 nm diode laser, and its multiple advantages on skin diseases. We studied in this paper the effectiveness of this type of laser on the progression of skin cancer among hamsters which were exposed to carcinogen on the bac...
Postsurgical scars are of significant concern to both the patients and surgeons. Different laser systems have been used to accelerate and improve the healing process in surgical scars. Some studies have demonstrated the benefits of prophylactic laser application on pre-scars. It seems that using laser energy in the early phase of the healing process may produce changes in the physiology of woun...
To evaluate laser irradiation effect on salinity tolerance in barley (Hordeum vulgare L.) at the germination phase and seedling, a CRD experiment in factorial arrangement experimental type was conducted at Tehran University, college of Abouraihan, in the year 2011. Experimental factors were four barley genotypes (Reihan, Afzal, Fajr30 and Nosrat), two radiation levels (no laser and laser irradi...
Background and Objective: Photodynamic therapy is a new therapeutic modality for the treatment of cancer. Photodynamic therapy uses an inactive drug and a light source to activate the drug to produce reactive oxygen species that destroy the cancer cells. In the present study, the effect of two different laser light sources on the efficiency of photodynamic therapy was evaluated using a breast c...
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 ...
background and aims. the aim of this study was to compare shear bond strength (sbs) of metal and ceramic brackets bonded to enamel using acid versus er:yag laser etching. materials and methods. eighty premolars were divided into 4 groups: am (acid etching/ metal brackets), ac (acid etching/ ceramic brackets), lm (laser etching/ metal brackets) and lc (laser etching/ ceramic brackets). enamel co...
a hypertrophic scar is defined as an excess healing response that is a dilemma for physicians. several therapies are available: intralesional corticosteroids, topical treatments, cryotherapy, surgery, radiation, silicone gel dressing and laser therapy.pulsed-dye, nd-yag and co2 lasers have been used for treatment of keloids and hypertrophic scars but recurrence is common. recently low-level las...
abstract background: in recent years, the endovenous laser therapy (evlt) has been proposed to treat the incompetent greater saphenous veins (gsv) to increase patient comfort,and to reduce cost as well as risk. evlt causes vein wall thickening, luminal contraction and vein fibrosis. the purpose of this article, as the first report from iran, is to review our experience and outline the early res...
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introduction: the aim of this study was to evaluate and compare the scanning electron microscope (sem) of indirect composite conditioned by erbium-doped yttrium aluminum garnet (er:yag) laser, neodymium-doped yttrium aluminium garnet (nd:yag) laserand carbon dioxide (co2) laser. methods: 18 indirect composite blocks (gc gradia da2, japan) with 15 × 10 × 10 mm dimensions were made. the bonding s...
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