Nonablative fractional laser resurfacing in Asian skin--a review.

Skin resurfacing has been a part of cosmetic dermatology for more than two decades now, and most of it has been ablative with traditional aggressive lasers including the CO(2) and erbium. The last few years have seen a revolutionary change with the invention of nonablative lasers for skin tightening. Fractional resurfacing is a new concept of cutaneous remodeling whereby laser-induced zones of microthermal injury are surrounded by normal untreated tissue that helps in quicker healing. The various wavelengths used are 1320, 1440, and 2940 nm with depth of penetration ranging from 25 µ to 1.2 mm. This article reviews the history of nonablative fractional laser resurfacing, its indications, contraindications, and a review of use in Asian skin with Fitzpatrick type III-VI.

Láser terapia de baja potencia en zona cruenta post-quirúrgica / Low power laser therapy in the post- operative bloody zone

Se realizó un estudio cuasi-experimental a pacientes sometidos a intervenciones de cirugía estética que desarrollaron como complicación la dehiscencia de la sutura teniendo como resultante una zona cruenta, en el Hospital Provincial Universitario Carlos Manuel de Céspedes de Bayamo, Granma, en el período comprendido entre enero del 2006 hasta el 30 de abril del 2009 con el objetivo de evaluar la efectividad del láser de baja potencia en la cicatrización de la zona cruenta postquirúrgica. La muestra fue de 40 pacientes, en dos grupos distribuidos de 20 cada uno, de forma aleatoria, al primero, se le aplicó cura convencional con nitrofurazona y al segundo láser terapia de baja potencia de tipo helio-neón donde se concluyó que con cura convencional a partir de la décima sesión predominaron significativamente los mejorados, no existió empeoramiento con el láser, además las pacientes de este grupo recibieron menos sesiones para la resolución total, y el resultado estético final satisfactorio prevaleció con esta modalidad(AU)

It was performed a cuasi-experimental research to patients who were under aesthetic surgical intervention, and showed as the main complication the dehiscence of the suture having a bloody zone as result, at Carlos Manuel de Cespedes University Province Hospital in Bayamo, Granma, during the period from January 2008 to January 30, 2009, with the objective to evaluate the improvement and development of a method that accelerate the cicatrization process for the resolution of the post operative bloody zone. The universe was made by all the patients surgically assisted for reductive mastoplastia, dermic mastopexy and abdominal demolipectomia. There were taken 40 patients as the sample, distributed at random into two groups of 20. The conventional cure was applied to the control group and the research group received laser irradiation from the helium neon type. In the tenth sesion of the control group the severe cases improved, in the research group the cases did not get worse and in the fifth sesion it was observed an improvement. This group received just a few sesions. The aesthetic final result was acceptable in the research group. We recommend to keep on developing the low power laser therapy making emphasis in the different stages of cicatrization(EU)

Low-level laser use in dentistry.

The use of laser light at power levels below that capable of direct tissue change (protein denaturation, water vaporisation and tissue ablation), has been advocated in diverse branches of medicine and veterinary practice, yet its acceptance in general dental practice remains low. However, the scope for using low-level laser light (LLLT) has emerged through many applications, either directly or indirectly tissue-related, in delivering primary dental care. The purpose of this article is to explain the mechanisms of action and to explore the uses of this group of lasers in general dental practice.