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...

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...

today laser has a lot of usage in medicine and dentistry. in the field of dentistry, laser is used in soft tissue surgery, sterilization of canals (in root canal therapy) and in restorative dentistry laser is used for cavity preparation, caries removal, sealing the grooves (in preventive dentistry), etching enamel and dentin, composite polymerization and removal of tooth sensitivity. the use of...

operated stably after more than 500h. In conclusion, we obtained a nearly round FFP in the 650nm band wavelength using the S3-laser. The laser had good I-L characteristics and good reliability at lOmW and 60°C. We consider that the laser could be of use as a light source in optical disk systems. and TERAMOTO, I.: 'Novel technology for formation of a narrow active layer in buried heterostructure...

introduction: recurrent corneal erosion occurs when the wounded corneal epithelium failed to adhere to the underlying stroma. therefore, this work aimed to assess the effect of treatment of corneal injury using q- switched nd:yag laser.  method: twenty one new zealand male rabbits weighing 2-2.5 kg and 3 months old were classified into three main groups. the control group: did not received any ...

Miniaturized passively Q-switched Nd:YAG/Cr(4+):YAG lasers are promising candidates as spark sources for sophisticated laser ignition. The influence of the complex spatial-temporal pulse profile of such lasers on the process of plasma breakdown and on the energy transfer is studied. The developed measurement technique is applied to an open ignition system as well as to prototypes of laser spark...

background: development of white spot lesions on enamel is a significant and common problem during the fixed orthodontic treatment. various preventive methods have been suggested. the purpose of this study was to evaluate the preventive potential of mi paste plus, er: yag laser and combined under similar in vitro conditions against demineralization. materials and methods: in this experimental i...