title: [The effect of core veneer thickness ratio on the flexural strength of diatomite-based dental ceramic].
abstract: OBJECTIVE
  To evaluate the effect of different core veneer thickness ratios on the flexural strength and failure mode of bilayered diatomite-based dental ceramics.
  
  
  METHODS
  Diatomite-based dental ceramics blocks (16 mm×5.4 mm×1 mm) were sintered with different thickness of veneer porcelains: 0 mm (group A), 0.6 mm (group B), 0.8 mm (group C) and 1.0 mm (group D). Flexural strength was detected and scanning electron microscope was used to observe the interface microstructure. Statistical analysis was performed using SPSS 17.0 software package.
  
  
  RESULTS
  With the increase of the thickness of the veneer porcelain, flexural strength of group C showed highest flexural strength up to (277.24±5.47) MPa.
  
  
  CONCLUSIONS
  Different core veneer thickness ratios can significantly influence the flexural strength of bilayered diatomite-based dental ceramics. Supported by Science and Technology Projects of Nantong City (HS2013010).
authors.affiliation: Nantong Stomatological Hospital. Nantong 226000; Nanjing Medical University. Nanjing 210029, Jiangsu Province, China.E-mail:yasinian@163.com.
authors.forename: Jie
authors.initials: J
authors.lastname: Jiang
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.forename: Mei-qin
authors.initials: MQ
authors.lastname: Gao
authors.forename: Fei-min
authors.initials: FM
authors.lastname: Zhang
authors.forename: Xiao-li
authors.initials: XL
authors.lastname: Lu
mesh_terms: D002516:Ceramics; D003764:Dental Materials; D003801:Dental Veneers; D013314:Stress, Mechanical
chemical_list: D003764:Dental Materials