Introduction: Skin cancer has been increased day by day, but it can be cured if it diagnosed early. After reviewing the scientific literature about 980 nm diode laser, and its multiple advantages on skin diseases. We studied in this paper the effectiveness of this type of laser on the progression of skin cancer among hamsters which were exposed to carcinogen on the bac...

Methods: LSSR was conducted employing two different laser systems: a) CO2 laser, articulated arm with nasal hand-piece / wave guide, or b) 980nm diode laser with fiber delivery system. The surgical technique includes direct transmucosal ablation of anterior or posterior cartilaginous spurs without incisions, mucoperichondrial flaps, therefore eliminating the need for post-op packing. The laser ...

The valence hole subbands, the TE and TM mode optical gains and radiative current density of In0.2Ga0.8As/GaAs compressively strained quantum well lasing at 980nm have been studied by using a 6x 6 Hamiltonian model including the heavy hole, light hole and spin-orbit splitting bands. The compressively strain enhances the TE mode optical gains and strongly depresses the TM mode optical gain. A ve...

The present study was conducted on 25 patients suffering from persistent oral lichen planus (OLP). The cases were selected from the out patient clinic of the National Institute of LaserEnhanced Sciences, Cairo University. OLP was diagnosed clinically and histologically. Patients were advised to stop any medications for treatment of OLP three months before laser treatment. Patients were treated ...

Laser diode beam divergence is the main parameter for beam shaping and fiber optic coupling. Increasing the waveguide layer thickness is the conventional method to decrease the beam divergence. In this paper, the broadened asymmetric waveguide is introduced to decrease the divergence without increasing the optical power. The asymmetric waveguide was used to shift the vertical optical field to n...

The present paper reports the near infrared (NIR) emission spectra of Er: Yb co-doped SiO2-Al2O3-TiO2 sol-gel glasses. Upon optical pumping either with 980nm(Diode Laser) or 488nm (Ar ion laser), the NIR emission transition (I13/2→I15/2) at 1550nm of (Er:Yb) glasses have revealed an improved intensity by many times compared with the Er singly doped sol-gel glass. The dependence of the emission ...

ABSTRACT The benefits of using a laser in soft tissue treatment include less oedema, reduced inflammation, and quicker recovery. Nowadays, soft-tissue interventions, including periodontal recontouring, operculectomy, or frenectomy, are possible thanks to the introduction diode lasers that strongly absorbable melanin haemoglobin. In this case, 17-year-old patient at near end her orthodontic was ...

Introduction: Venous lake (VL) is characterized by vascular proliferation, clinically evidenced as а soft tumor with redbluish color. If traumatized VL are prone to hemorrhage and their treatment usually requires caution to prevent bleeding. In the last decade lasers have changed the treatment options of VL permitting the application of non-surgical techniques that reduced the hemorrhage risks ...