%0 Journal Article
%T Influence of peracetic acid at acrylic resin properties
%A Hehn
%A Lisiane
%A Mac¨ºdo
%A ¨¦rika de Oliveira Dias de
%A Collares
%A Fabr¨ªcio Mezzomo
%A Leitune
%A Vicente Castelo Branco
%A Samuel
%A Susana Maria Werner
%J Revista Odonto Ci¨ºncia
%D 2012
%I Scientific Electronic Library Online
%R 10.1590/S1980-65232012000300012
%X purpose: to evaluate the influence of peracetic acid immersion on water sorption, solubility and microhardness of heat and self-cured acrylic resins. methods: thirty specimens of each type of acrylic resin were produced for sorption, solubility and microhardness evaluation. sorption and solubility were evaluated based on iso1567. for the microhardness test, specimens (20.0¡Á5.0¡Á10.0 mm) were made and evaluated under a 100 g load for 15 s. the test groups were submitted to a peracetic acid 0.2% immersion for 10 minutes. data of sorption and solubility were analyzed by two way anova and, hardness values, by paired t-test. results: values of sorption and solubility were in agreement with iso1567 requirements to both groups and ranged, in ¦Ìg/mm3, for sorption from 22.28 (¡À4.40) to 24.25 (¡À3.27), and from 1.09 (¡À0.16) to 1.29 (¡À0.10) for solubility. solubility showed a statistically significant difference between the two types of resin at test group. there was no statistical significant difference at the microhardness values. conclusion: in this study, immersion in peracetic acid solution 0.2% showed no alterations at acrylic resin properties tested.peracetic acid could be recommended to replace the conventional agents for the disinfection of acrylic resin devices.
%K acrylic resin
%K denture cleanser
%K prosthodontics.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1980-65232012000300012&lng=en&nrm=iso&tlng=en