Bioinspired design of dental multilayers

  • M. Huang
  • R. Wang
  • V. Thompson
  • D. Rekow
  • W. O. SoboyejoEmail author


This paper considers the use of bioinspired functionally graded structures in the design of dental multi-layers that are more resistant to sub-surface crack nucleation. Unlike existing dental crown restorations that give rise to high stress concentration, the functionally graded layers (between crown materials and the joins that attach them to dentin) are shown to promote significant reductions in stress and improvements in the critical crack size. Special inspiration is drawn from the low stress concentrations associated with the graded distributions in the dentin-enamel-junction (DEJ). The implications of such functionally graded structures are also discussed for the design of dental restorations.


Functionally Grade Material Maximum Principal Stress Natural Tooth Dental Restoration Critical Crack Length 
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© Springer Science + Business Media, LLC 2006

Authors and Affiliations

  • M. Huang
    • 1
  • R. Wang
    • 2
  • V. Thompson
    • 3
  • D. Rekow
    • 3
  • W. O. Soboyejo
    • 1
    Email author
  1. 1.The Princeton Materials Institute and The Department of Mechanical and Aerospace EngineeringPrinceton UniversityPrincetonUSA
  2. 2.Department of Metals and Materials EngineeringUniversity of British ColumbiaBCCanada
  3. 3.College of DentistryNew York UniversityNew YorkUSA

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