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Influence of plaster drying on the amount of residual monomer in heat-cured acrylic resins
Paes-Junior, Tarcisio José de Arruda; Carvalho, Rodrigo Furtado de; Cavalcanti, Sâmia Carolina Mota; Saavedra, Guilherme de Siqueira Ferreira Anzaloni; Borges, Alexandre Luiz Souto.
Afiliação
  • Paes-Junior, Tarcisio José de Arruda; Universidade Estadual Paulista. Institute of Science and Technology. School of Dentistry. São José dos Campos. BR
  • Carvalho, Rodrigo Furtado de; Universidade Estadual Paulista. Institute of Science and Technology. School of Dentistry. São José dos Campos. BR
  • Cavalcanti, Sâmia Carolina Mota; Universidade Estadual Paulista. Institute of Science and Technology. School of Dentistry. São José dos Campos. BR
  • Saavedra, Guilherme de Siqueira Ferreira Anzaloni; Universidade Estadual Paulista. Institute of Science and Technology. School of Dentistry. São José dos Campos. BR
  • Borges, Alexandre Luiz Souto; Universidade Estadual Paulista. Institute of Science and Technology. School of Dentistry. São José dos Campos. BR
Braz. j. oral sci ; 12(2): 84-89, Apr.-June 2013. ilus
Article em En | LILACS, BBO | ID: lil-694423
Biblioteca responsável: BR218.1
ABSTRACT

Aim:

To evaluate the influence of plaster condition, dry or not, on the amount of residual monomerin heat-cured acrylic resin.

Methods:

Thirty acrylic resin specimens (65x10x3 mm) were fabricatedand randomly assigned to 5 groups (n=6). The evaluated resins were heat-cured acrylic resinsby conventional or microwave polymerization techniques and the plaster was previously dried inmicrowave oven in two groups. Each specimen was individually immersed in a test tube containingmethanol (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 inmethanol. The analysis was made by high performance liquid chromatography (HPLC). Datawere analyzed by ANOVA and Tukey test (p<5%)

Results:

showed statistical differences amongthe groups.

Conclusions:

The previous plaster drying influenced the residual monomer amountshowing a decrease of these levels.
Assuntos
Texto completo: 1 Coleções: 01-internacional Base de dados: BBO / LILACS Assunto principal: Polímeros / Pesquisa / Resinas Acrílicas / Cromatografia Idioma: En Revista: Braz. j. oral sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2013 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo: 1 Coleções: 01-internacional Base de dados: BBO / LILACS Assunto principal: Polímeros / Pesquisa / Resinas Acrílicas / Cromatografia Idioma: En Revista: Braz. j. oral sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2013 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil