Artículos de revistas
Influence of storage period and effect of different brands of acrylic resin on the dimensional accuracy of the maxillary denture base
Brazilian Dental Journal, v. 19, n. 3, p. 204-208, 2008.
Universidade Estadual Paulista (UNESP)
The aim of this study was to evaluate the dimensional changes of denture bases made from different resins after different storage periods. For this purpose, 25 sets of plaster models/resin bases were prepared using 4 acrylic resins submitted to two types of polymerization: 1- QC-20 submitted to polymerization by microwave energy; 2- QC-20 submitted to polymerization by water hot bath; 3- Vipi Cril submitted to polymerization by water hot bath; 4- Vipi Wave submitted to polymerization by microwave energy; and 5- Onda Cryl submitted to polymerization by microwave energy. After polymerization, the specimens were sectioned for accuracy readings using a comparison microscope. Readings were taken at 3 points: the crests of the right (A) and left (B) ridges, and the median region of the palate, in 4 different periods. The data obtained were submitted to two-way ANOVA and Tukey's test at 5% significance level. The greatest distortions were found in the posterior palatal region of the base (M), with statistically significant difference (p<0.05) for the studied resins. All acrylic resins presented dimensional changes and the storage period influenced these alterations.
Showing items related by title, author, creator and subject.
Retention strength of cobalt-chromium vs nickel-chromium titanium vs Cp titanium in a cast framework association of removable partial overdenture Souza, José Everaldo de Aquino; da Silva, Nelson Renato França Alves; Coelho, Paulo Guilherme; Zavanelli, Adriana Cristina; Ferracioli, Renata Cristina Silveira Rodrigues; Zavanelli, Ricardo Alexandre
Retention strength of cobalt-chromium vs nickel-chromium titanium vs Cp titanium in a cast framework association of removable partial overdenture FO-UFG; NYUCD; Universidade Estadual Paulista (UNESP); Universidade de São Paulo (USP) (2011-05-01)Aim: There is little information considering the framework association between cast clasps and attachments. The aim of this study was to evaluate the retention strength of frameworks match circumferential clasps and extra ...
Martins, Renato Parsekian; Magno, Amanda Fahning; Martins, Isabela Parsekian; Martins, Lidia Parsekian; White, Larry W