期刊论文详细信息
Brazilian Dental Journal
Microtensile Bond Strength of Methacrylate and Silorane Resins to Enamel and Dentin
Gisele Rodrigues Da Silva1  Isabela Sousa Araújo1  Rodrigo Dantas Pereira1  Bruno De Castro Ferreira Barreto1  Célio Jesus Do Prado1  Carlos José Soares1  Luís Roberto Marcondes Martins1 
关键词: microtensile bond strength;    BisGMA methacrylate composite resin;    silorane composite resins;    enamel;    dentin;   
DOI  :  10.1590/0103-6440201300009
来源: SciELO
PDF
【 摘 要 】

The aim of this study was to evaluate the microtensile bond strength (µTBS) of two substrates (enamel and dentin) considering two study factors: type of composite resin [methacrylate-based (Filtek Supreme) or silorane-based (Filtek LS)] and aging time (24 h or 3 months). Twenty human molars were selected and divided into 2 groups (n=10) considering two dental substrates, enamel or dentin. The enamel and dentin of each tooth was divided into two halves separated by a glass plate. Each tooth was restored using both tested composite resins following the manufacturer's instructions. The samples were sectioned, producing 4 sticks for each composite resin. Half of them were tested after 24 h and half after 3 months. µTBS testing was carried out at 0.05 mm/s. Data were analyzed by three-way ANOVA and Tukey's HSD tests at α=0.05. Significant differences between composite resins and substrates were found (p<0.05), but no statistically significant difference was found for aging time and interactions among study factors. The methacrylate-based resin showed higher µTBS than the silorane-based resin. The µTBS for enamel was significantly higher than for dentin, irrespective of the composite resin and storage time. Three months of storage was not sufficient time to cause degradation of the bonding interaction of either of the composite resins to enamel and dentin.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License

【 预 览 】
附件列表
Files Size Format View
RO202005130110046ZK.pdf 131KB PDF download
  文献评价指标  
  下载次数:2次 浏览次数:12次