Influence of plaster drying on the amount of residual monomer in heat-cured acrylic resins

AIM: To evaluate the influence of plaster condition, dry or not, on the amount of residual monomer in heat-cured acrylic resin. METHODS: Thirty acrylic resin specimens (65x10x3 mm) were fabricated and randomly assigned to 5 groups (n=6). The evaluated resins were heat-cured acrylic resins by convent...

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Bibliographic Details
Published in:Brazilian journal of oral sciences 2013-06, Vol.12 (2), p.84-89
Main Authors: Paes-Junior, Tarcisio José de Arruda, Carvalho, Rodrigo Furtado de, Cavalcanti, Sâmia Carolina Mota, Saavedra, Guilherme de Siqueira Ferreira Anza, Borges, Alexandre Luiz Souto
Format: Article
Language:English
Subjects:
DENTISTRY, ORAL SURGERY & MEDICINE
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Summary:AIM: To evaluate the influence of plaster condition, dry or not, on the amount of residual monomer in heat-cured acrylic resin. METHODS: Thirty acrylic resin specimens (65x10x3 mm) were fabricated and randomly assigned to 5 groups (n=6). The evaluated resins were heat-cured acrylic resins by conventional or microwave polymerization techniques and the plaster was previously dried in microwave oven in two groups. Each specimen was individually immersed in a test tube containing methanol (7 days) for surface analysis. In the groups for which internal monomer was evaluated, the specimens were fragmented and the small fragments were weighed prior to immersion in methanol. The analysis was made by high performance liquid chromatography (HPLC). Data were analyzed by ANOVA and Tukey test (p
ISSN:1677-3225
1677-3225
DOI:10.1590/S1677-32252013000200003