Effect of ion exchange on strength and slow crack growth of a dental porcelain.

  title={Effect of ion exchange on strength and slow crack growth of a dental porcelain.},
  author={Vinicius Bonato da Rosa and Humberto Naoyuki Yoshimura and Marcelo Mendes Pinto and Catia Fredericci and Paulo Francisco C{\'e}sar},
  journal={Dental materials : official publication of the Academy of Dental Materials},
  volume={25 6},
OBJECTIVES To determine the effect of ion exchange on slow crack growth (SCG) parameters (n, stress corrosion susceptibility coefficient, and sigma(f0), scaling parameter) and Weibull parameters (m, Weibull modulus, and sigma(0), characteristic strength) of a dental porcelain. METHODS 160 porcelain discs were fabricated according to manufacturer's instructions, polished through 1 microm and divided into two groups: GC (control) and GI (submitted to an ion exchange procedure using a KNO3 paste… CONTINUE READING
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