نتایج جستجو برای: co2 laser

تعداد نتایج: 251153  

M Mandegar Fard N Farsi

Lymphangioma circumscriptum is a congenital lymphatic malformation that results in gradual dilatation of lymphatic vessels and development of lymphatic cisterns. The treatment of choice is radical surgery. Other treatment methods including cryotherapy, sclerosing agent injections, radiation therapy and CO2 laser were suggested. We report successful treatment of a 14-year-old boy affected with l...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
مهشید محمدی بصیر mahshid mohammadi basir shahed university, tehran- iran.دانشگاه شاهد محمد باقر رضوانی mohammad bagher rezvani shahed university, tehran- iran.دانشگاه شاهد نسیم چینی فروش nasim chiniforoush tehran university of medical sciences, tehran- iran.دانشگاه علوم پزشکی تهران زهره مرادی zohreh moradi shahed university, tehran- iran.دانشگاه شاهد

objective: the aim of this study was to evaluate and compare the effect of dental surface treatment with er:yag , nd:yag ,co2 lasers and sodium ascorbate to recently laser bleached enamel by scanning electron microscope (sem). methods: 15caries-free extracted human third molars were selected for this study. the samples were bleached by heydent jw power activated by diode laser 810 nm. after 7 d...

Journal: :فیزیک کاربردی 0
سمیه مرتضوی دانشگاه الزهرا سجاد بتول دانشگاه الزهرا محسن منتظرالقائم سازمان انرژی اتمی

in this paper, the output power behavior of the wave-guide cw-co2 laser versus efficient parameters of laser performance was investigated. the output power variation versus the discharge current, the pressure and the gas mixture ratio was studied and optimized. the maximum output powers of 6 and 14.5 w were respectively obtained at operating pressures 78 and 50 mbar in two tubes of 3 mm same di...

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 zahra akbari department of dermatology, razi hospital, tehran university of medical sciences, tehran, iran somayeh hejazi department of dermatology, skin research center, shahid beheshti university of medical sciences, tehran, iran

a 47 year-old woman presented with eight-month history of tattoo allergic reaction of eyebrows after botulinum toxin a injection that was resistant to oral, topical and intralesional injection of corticosteroids. multiple sessions of treatment with co2 fractional laser resulted in significant flattening of allergic papules and plaques as well as reduction of tattoo pigmentation

Journal: :journal of lasers in medical sciences 0
nasim chiniforush laser research center of dentistry (lrcd), school of dentistry of tehran university of medical sciences abbas kamali periodontist, tehran, iran sima shahabi laser research center of dentistry, dental materials department, school of dentistry of tehran university of medical sciences. tehran, iran seyyed hossein bassir dentist, tehran, iran

introduction: definitive treatment of oral leukoplakia is very important because of its recurrences and malignant transformation depending on the location, clinical feature,degree of dysplasia and etiological factors. there are different kinds of treatment for this lesion, but using high power laser has some advantages like less pain, swelling, prevention of metastasis, edema, less bleeding (dr...

Journal: :world journal of plastic surgery 0
ramtin kassir department of plastic surgery, hoag presbytarian university hospital, newport beach, ca, usa. johonna gilbreath department of plastic surgery, hoag presbytarian university hospital, newport beach, ca, usa. ali sajjadian 496 old newport blvd, suite #3, newport beach, ca 92663, usa.

rhinophyma is a severe late complication of rosacea, which is characterized by progressive hyperplasia of sebaceous glands and connective tissue involving the lower two-thirds of the nose. it can be an emotionally devastating disorder, and serve as a medium for occult cancers and other health problems. many surgical treatments have been advocated, as well as dermabrasion and laser therapy. in l...

Journal: :journal of skin and stem cell 0
abbas zamanian department of dermatology, rasoul akram hospital, iran university of medical sciences, tehran, iran elham behrangi department of dermatology, rasoul akram hospital, iran university of medical sciences, tehran, iran gholam hossein ghafarpour department of dermatology, rasoul akram hospital, iran university of medical sciences, tehran, iran golnaz mehran department of dermatology, rasoul akram hospital, iran university of medical sciences, tehran, iran romina espahbodi faculty of medicine, golestan university of medical sciences, gorgan, iran tanaz hoseinzade fakhim department of dermatology, rasoul akram hospital, iran university of medical sciences, tehran, iran; department of dermatology, rasoul akram hospital, iran university of medical sciences, tehran, iran. tel: +98-9123180244

conclusions our study showed that the triple therapy of nd: yag and nd: yag + co2 fractional and hydroquinone cream had high efficiency and low morbidity compared to twofold treatment with nd: yag and nd: yag + co2 fractional. results seventeen patients with melasma (14 females and three males) with mean (± sd) age of 38.47 (± 6.29) years (range 29 - 53) were included in this study. the only si...

Mahmood Tabatabaei,

SUMMARY We have discussed in this article, about usages of Laser (Cortype) In Neurological - Surgery, In the beginning of the article, historical considerations have been written, then specifications of laser light have been noted, including the functions of laser. In this article, types of laser have been matched. In the another part of article, advantages of Co2 . laser have been mentioned,...

ژورنال: پوست و زیبایی 2021
Fathi, Afshin , Hayatollah, Gholamhosein , Khorasani, Ghasemali , Molaie, Hojjat , Rahmati, Javad ,

Background and Aim: Undesirable appearance of the scar tissue after aesthetic surgery can affect the outcomes and patient satisfaction. In recent years, early laser therapy had been encouraged to reduce the scar tissue formation. However, the available evidence regarding the outcomes of laser therapy utilizing combined lasers are limited. In the current study, the effects of combined laser ther...

ژورنال: مجله دندانپزشکی 2011
آذری, عباس, اصلانی, پویا, خلیل, محمد احسان, شهابی, سیما, نیکزاد, سکینه,

Background and Aims: Reliable bonding between tooth substrate and zirconia-based ceramic restorations is always of great importance. The laser might be useful for treatment of ceramic surfaces. The aim of the present study was to investigate the effect of laser irradiation on the shear bond strength of zirconia ceramic surface to dentin. Materials and Methods: In this experimental in vitro stu...

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