نتایج جستجو برای: carbon dioxide laser pulse

تعداد نتایج: 565177  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1387

چکیده ندارد.

Journal: :Archives of otolaryngology--head & neck surgery 1998
M T Speyer L Reinisch K A Cooper W R Ries

OBJECTIVES To measure and compare postoperative erythema after laser cutaneous resurfacing using 2 carbon dioxide laser systems and varying postoperative treatment methods. DESIGN Carbon dioxide laser systems are used as cutaneous resurfacing tools. The continuous-wave lasers have been associated with postoperative erythema, but the short-pulsed lasers reportedly result in less postoperative ...

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 lasers in medical sciences 0
sima shahabi dental biomaterials and bioengineering research center, school of dentistry, tehran university of medical sciences, tehran, iran nasim chiniforush laser research center of dentistry, school of dentistry, tehran university of medial science, tehran, iran nasrin juybanpoor dentist, tehran, iran

introduction: the aim of this study was to investigate the morphological changes of human dentin after erbium-doped yttrium aluminum garnet (er:yag), carbon dioxide (co2) laser-irradiation and acid-etching by means of scanning electron microscopic (sem) m ethods: 9 extracted human third molars were used in this study. the teeth were divided in three groups: first group, co2 laser with power of ...

2001
David B Apfelberg

DB Apfelberg. Ultrapulse carbon dioxide laser resurfacing and facial cosmetic surgery. Can J Plast Surg 1995;3(3):133-136. Over 100 patients have been treated with the ultrapulse carbon dioxide laser since July 1994. The high power square wave pulse of 600 watts at less than 1 msec (which is less than the thermal relaxation time of tissue) dissipates heat during vaporization, thus producing a `...

Journal: :journal of lasers in medical sciences 0
mahshid mohammadi bassir department of operative dentistry, school of dentistry, shahed university of medical sciences, tehran, iran mohammad bagher rezvani department of operative dentistry, school of dentistry, shahed university of medical sciences, tehran, iran nasim chiniforush laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran zohreh moradi department of operative dentistry, school of dentistry, shahed university of medical sciences, tehran, iran

introduction: the aim of this study was to evaluate the effect of dental surface treatment with erbium-doped yttrium aluminum garnet(er: yag), neodymium-doped yttrium aluminium garnet(nd: yag) and carbon dioxide laser  (co 2 ) lasers and sodium ascorbate to recently home bleached enamel by scanning electron microscope (sem). methods: thirty extracted human third molars were selected for this in...

Journal: :Archives of facial plastic surgery 2003
Ravinder Dahiya Samuel M Lam Edwin F Williams

BACKGROUND To our knowledge, no systematic analysis of nonablative laser therapy has been performed. OBJECTIVE To alter the parameters (fluence, spot size, pulse duration, and use of cooling spray) for the pulsed dye laser to determine the precise settings that would yield the most favorable dermal remodeling in a porcine model. METHODS Research was conducted in an animal laboratory at Alba...

Journal: :Journal of the American Academy of Dermatology 2000
D S Behroozan M M Christian R L Moy

BACKGROUND Carbon dioxide (CO(2)) laser resurfacing of the face has become an increasingly popular procedure. However, laser resurfacing of the neck has been largely avoided because of fears of scarring or pigmentation changes. OBJECTIVE Our purpose was to evaluate the efficacy of treatment and incidence of complications after short-pulse CO(2) laser resurfacing of the neck. METHODS A total...

Journal: :journal of lasers in medical sciences 0
tahereh foroutan department of biology, faculty of biological science, kharazmi university, tehran, iran nader ayoubian department of periodontology, faculty of dentistry, azad university, branch of tehran, tehran, iran

introduction: the purpose of this study was to investigate the effect of 6w power carbon dioxide laser (co2) on the biologic compatibility of the sandblasting with large grit and acid etching (sla) titanium discs through studying of the sarcoma osteogenic (saos-2) human osteoblast-like cells viability. methods: sterilized titanium discs were used together with saos-2 human osteoblast-like cells...

Journal: :Archives of facial plastic surgery 2011
Haemi Lee Leigh J Sowerby Claire L Temple Edward Yu Corey C Moore

OBJECTIVE To assess outcomes in managing primary lentigo maligna through surgical excision, radiation therapy, and carbon dioxide laser ablation. METHODS Retrospective case series review of all patients with primary lentigo maligna diagnosed and treated in London, Ontario, Canada, between July 2, 1991, and June 29, 2010. RESULTS Seventy-five patients aged 39 to 93 years (mean age, 64.8 year...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید