نتایج جستجو برای: diode 980nm laser
تعداد نتایج: 197280 فیلتر نتایج به سال:
AIM To compare the use of the 810nm diode laser with conventional surgery in the management of soft tissue mucogingival problems associated with orthodontic treatment. METHODS Orthodontic patients requiring different soft tissue surgical procedures were randomly assigned to receive conventional surgery or soft tissue diode laser, (wavelength 810 nm). MAIN OUTCOME MEASURES Parameters documen...
Background: The aim of the study was to compare functional and structural outcomes of treatment for retinopathy of prematurity with diode laser photocoagulation and cryotherapy. Materials and methods: We examined 111 children aged 4 years, treated for retinopathy of prematurity by transpupillary diode laser photocoagulation or cryotherapy. Both functional (visual acuity, orthoptic status) and s...
Earlobe piercing is a common office room procedure done by a plastic surgeon. Various methods of ear piercing have been described. In this article, we describe a novel method of laser ear piercing using the diode laser. An 18-year-old female patient underwent an ear piercing using a diode laser with a power of 2.0 W in continuous mode after topical local anaesthetic and pre-cooling. The diode l...
introduction: deep periodontal pockets pose a great challenge for nonsurgical periodontal treatment. scaling and root planing (srp) alone may not suffice in cases where surgical therapy cannot be undertaken. various recent studies have suggested the use of antimicrobial photodynamic therapy (apdt) for the management of periodontal infections. the aim of this study was to evaluate the effects of...
introduction: laser tissue soldering is a new technique for repair of various tissues including the skin, liver, articular cartilage and nerves and is a promising alternative to suture. to overcome the problems of thermal damage to surrounding tissues and low laser penetration depth, some exogenous chromophores such as gold nanoshells, a new class of nanoparticles consisting of a dielectric cor...
A laser-isotope-separation study of lithium has been performed with two-step excitation involving UV laser radiation and a visible tunable-diode laser. The method yields a high degree of selectivity by tuning the narrow-linewidth diode laser to the D1 or D2 levels of the lithium atom. Selective laser excitation is simplified by the use of the tunable diode laser and the overall approach benefit...
Atomic ion traps offer a promising architecture for scalable quantum information processing. External cavity diode lasers yield stable output frequency and narrow spectral bandwidth by exploiting the sensitivity of diode lasers to external optical feedback. This project aims to design and develop a high-coherence external cavity diode laser used to depopulate Yb171+ from the undesirable 2F7/2 o...
Abstmct-The noise equivalent circuit of a semiconductor laser diode is derived from the rate equations including Langevin noise sources. This equivalent circuit allows a straightforward calculation of the noise and modulation characteristics of a laser diode combined with electronic components. The intrinsic junction voltage noise spectrum and the light intensity fluctuation of a current driven...
Diode laser-pumped solid-state lasers are efficient, compact, all solid-state sources of coherent optical radiation. Major advances in solid-state laser technology have historically been preceded by advances in pumping technology. The helical flash lamps used to pump early ruby lasers were superseded by the linear flash lamp and arc lamp now used to pump neodymium-doped yttrium-aluminum-garnet ...
BACKGROUND Recently alternative therapies such as the use of diode laser therapy have been introduced for recurrent herpes labial infection. The aim of this study was to evaluate the effectiveness of diode laser for treatment of recurrent herpes labialis. MATERIAL AND METHODS This was single-blind randomized clinical trial to evaluate the efficacy of diode laser for the treatment of recurrent...
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