Avaliação microestrutural e biológica da lixa d'água utilizada na técnica de dermoabrasão manual.

Abstract

Acne is the most common problem that affects human skin, predominantly begins at puberty and affects 80% to 95% of adolescents and young adults, becoming less active or disappearing in adulthood. There are several treatment options for acne scars are dermabrasion, chemical peels, C02 laser surgical techniques (lifting and excision and puncture Subcision) and fills skin. Each technique has indicated according to type of scar and different techniques can be combined. The physician qualified to decide what the best treatment modality for each patient. Dermabrasion, also called mechanical peeling, consists of a roughening of the skin, which can reach the deepest layers thereof. The technique of manual dermabrasion with water sandpaper, sanding allows a gradual, being deeper on the most superficial rhytids and on the periphery of the treated area, avoiding the marquee, in addition to not present a risk of spread of biological particles that can contaminate the team medical. Given this, this paper aims to assess and characterize the sanding water obtained in shops of building materials in the different circumstances of use in order to give security to this procedure with regard to biological interactions. The results of the analysis of X-ray diffraction (XRD) showed that the sandpaper had similar profile in both conditions analyzed. The microstructural studies carried out by electronic microscopy (SEM), and optical microscopy revealed the presence of cracks after the sterilization process, but also the change in particle size with increasing size of sandpaper. The wettability test showed that all the scrapers are partially hydrophilic. Cell viability was confirmed with sandpaper of the MTT assay, which revealed no toxicity thereof. Thus, it can be concluded that in general, we highlight the fact that despite the satisfactory cell viability variation of chemical composition is found to alert the use of these materials.