Laser forming is a modern process which is mainly used for forming metals. Different Lasers are used in this regard that includes Nd: YAG and CO2. In this study, forming bi-layer sheets of Aluminum/Ceramic by Laser was investigated. Furthermore, effect of Uniform and Gaussian heat flux distribution in different power, velocity, and beam diameters on bending angle was studied. FEM simulation ind...

PURPOSE To study factors affecting laser energy levels required for neodymium: yttrium aluminium garnet (Nd: YAG) laser capsulotomy and to evaluate whether any correlation exists between applied laser energy levels and complications. METHODS The present study examined 474 consecutive patients for a number of factors including age, type of posterior capsule opacification (PCO), material and fi...

Background and aims: Skin rejuvenation is one of high demand cosmetic interventions in Iran. Fractional CO2 Laser is a high power ablative laser which has variety of utilization in medicine including treatment of acne scars and rejuvenation. The aim of this study was to evaluate the safety, efficacy, and cost-effectiveness of Fractional CO2 Laser in comparison with other methods of rejuvenation...

The patients with universal vitiligo and residual pigmented patches usually do not benefit from available repigmenting methods and are better scheduled for depigmentation by medical, laser,and or freezing procedures. A 37-year-old lady with universal vitiligo and remaining pigmentation in the left anterior chest wall, ...

Light and electron microscopic studies of YAG laser iridotomies were performed in two human iridectomy specimens. Full-thickness defects were created and showed stromal and vascular necrosis. The light and electron microscopic configuration of the lesions was compatible with mechanical disruption from shockwaves. Thermal changes were absent in contrast to iridotomies created by argon laser phot...

Background and Aim: Nowadays, lasers are the focus of attention as a new treatment in dentistry. One applications is their use implant The present study aimed to compare effect YAG: Er 089 nm Diode laser irradiation on attachment osteoblast cells surface dental felxtures. Materials Methods: In study, 36 titanium implants were divided into three groups 12. Twelve irradiated with Er: YAG 12 diode...

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...

o bjectives: bond strength of composite resin to enamel and dentin of primary teeth is lower than that to permanent teeth; therefore, it may compromise the ad- hesive bonding. new methods, such as laser application have been recently intro- duced for tooth preparation. the purpose of this study was to evaluate the effect of tooth preparation with bur and er:yag laser on shear bond strength of c...

introdouction: dentinal hypersensitivity (dh) is one of the most painful chronic problems reported in dental offices. various methods have been applied for the treatment of dh. however, majority of them are either ineffective or last for a short period of time. it has been reported that lasers, particularly neodymium- doped: yttrium aluminum garnet laser (nd: yag), can be helpful in the treatme...