Much of this uncertainty stems from not comparing “apples to apples,” in terms of the type of lasers utilized and the way that studies are designed. Certain lasers are used specifically for soft tissue treatment. These include the CO2, Nd:YAG, and diode lasers. Others can be used for both soft and hard tissue applications. These are the Er:YAG and Er, Cr:YSGG lasers. They must be compared withi...

The COMPASS tokamak, originally from UKAEA, Culham laboratory, U.K., will be reinstalled at Institute of Plasma Physics, Prague. The scientific programme is focused mainly on the investigation of the edge plasma region with high temperature and density gradients called pedestal. Many innovations will be done and new diagnostics have to be constructed. One of the key diagnostics is an incoherent...

microleakage can be responsible for tooth hypersensitivity, secondary caries, and the possibility of pathological pulp alterations in restored teeth. recently, alternative methods for tooth preparation such as laser irradiation have been studied; but there are limited studies on primary teeth. the aim of this in vitro study was to compare the degree of microleakage of composite restorations pre...

A first international comparison of I2-stabilized Nd : YAG lasers has been made between the National Research Laboratory of Metrology (NRLM), Tsukuba, Japan, the Joint Institute for Laboratory Astrophysics JILA (formerly the Joint Institute for Laboratory Astrophysics), Boulder, CO, the National Institute of Standards and Technology (NIST), Boulder, and the University of Colorado, Boulder. The ...

s from this work 1. Lam DGK, RFR Brown, Rice P Accelerated wound healing of Lewisite induced chemical burns with debridement by Ultapulse and Erbium. YAG lasers. Abstracts from the best regional presentations. Annals RCSE 84(3):214 May 2002 2. Rice P, Bennett NJ, Lam DGK, Brown RFR The Role of Dermabrasion in Lewisite-induced Skin Injury. In: Proceedings of the 2000 Medical Defense Bioscience R...

The temperature dependent corrections of the formaldehyde laser induced fluorescence raw signal are discussed for the 355 nm excitation, which is widely available as the third harmonic of Nd-YAG lasers. The temperature dependence of the HCHO partition function is calculated explicitly and the effect of quenching corrections is discussed in view of the absence of experimental data on collision c...

Short pulsed laser trabeculotomy has been shown to reduce intraocular pressure in patients with primary open angle glaucoma. This study seeks to determine the energy levels required to produce a fistula into the canal of Schlemm for four different Q-switched neodymium-YAG lasers. The laser was fired at fixed human trabecular meshwork specimens at a range of energy settings for each laser and th...

The set of diffractive optical elements for CO2 and Nd-Yag lasers was theoretically calculated, fabricated by microlithographic technology and experimentally tested. It is shown that the laser systems for therapy, surgery and welding gain from advanced capabilities of the DOEs: uniform focal-spot intensity, simultaneous formation of focal line contours, sharp and multiple-spot focusing, dual-wa...

Indications for use of the Er:YAG laser are continuously expanding. In this paper, the latest Pixel Screen Technology (PST) fractional technique for minimally invasive Er:YAG skin rejuvenation is presented. The fractional technique is based on a concept of producing an array of microscopic wounds on the skin surface that are rapidly reepithelialized by the surrounding, undamaged tissue, thus sp...

purpose: to evaluate changes in anterior chamber (ac) parameters before and one month after nd:yag capsulotomy. methods: a total of 30 eyes from 27 patients with posterior capsule opacification graded 2-4 with surgical history of uneventful phacoemulsification and acrylic foldable iol implantation were included in this study. before capsulotomy and one month later, anterior chamber depth, volum...