Internal fit of two all-ceramic systems and metal-ceramic crowns

  title={Internal fit of two all-ceramic systems and metal-ceramic crowns},
  author={Leandro de Moura Martins and F{\'a}bio C{\'e}sar Lorenzoni and Alcides Oliveira de MELO and Luciana Mendonça da Silva and Jos{\'e} Luiz G. de OLIVEIRA and Pedro C{\'e}sar Garcia de Oliveira and Gerson Bonfante},
  journal={Journal of Applied Oral Science},
  pages={235 - 240}
Objectives The aim of this study was to investigate the internal fit (IF) of glass-infiltrated alumina (ICA - In-Ceram Alumina), yttria-stabilized tetragonal zirconia polycrystals (Y-TZP - IPS e.max ZirCAD), and metal-ceramic (MC - Ni-Cr alloy) crowns. Material and Methods Sixty standardized resin-tooth replicas of a maxillary first molar were produced for crown placement and divided into 3 groups (n=20 each) according to the core material used (metal, ICA or Y-TZP). The IF of the crowns was… 

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