Enhanced Cell Response to Zirconia Surface Immobilized with Type I Collagen

C. M. Hsu, Y. S. Sun, H. H. Huang

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Zirconia (ZrO 2 ) dental implants provide good biocompatibility, have good corrosion resistance, and have a color that is similar to that of natural teeth. Unfortunately, ZrO 2 is a bioinert material and therefore achieves osseointegration difficultly. In this study, we sought to enhance osseointegration by producing rough ZrO 2 surfaces that contain hydroxyl groups (designated ZSA) through the use of sandblasting in conjunction with alkaline treatment. We immobilized type I collagen on ZSA surfaces using the natural cross-linker, procyanidin. Our results further showed that surfaces produced in ZSA-P/C featured more and steadier type I collagen than surfaces produced in ZSA-C. The ZSA-P/C also presented superior cell responses in terms of adhesion, proliferation, and mineralization of human bone marrow mesenchymal stem cells. The enhanced cell responses in the ZSA-P/C were induced through the prolonged activation of focal adhesion kinase, AKT (the phosphoinositide 3-kinase pathway), and p38 (the mitogen-activated protein kinase pathway). The simple and novel approach to immobilize type I collagen on roughened ZrO 2 surfaces presented in this article can likely benefit dental implant applications.

Original languageEnglish
Pages (from-to)556-563
Number of pages8
JournalJournal of Dental Research
Issue number5
Publication statusPublished - May 1 2019


  • cell signaling
  • cell-matrix interactions
  • ceramics
  • collagen(s)
  • dental implant(s)
  • osteogenesis

ASJC Scopus subject areas

  • General Dentistry


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