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Related Experiment Video

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Calcium Plasma Implanted Titanium Surface with Hierarchical Microstructure for Improving the Bone Formation.

Mengqi Cheng1, Yuqin Qiao2, Qi Wang1

  • 1†Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai 200233, China.

ACS Applied Materials & Interfaces
|May 29, 2015
PubMed
Summary

Calcium ion implantation onto sandblasted and acid-etched titanium (Ca-SLA-treated Ti) surfaces enhances osseointegration. This surface modification promotes osteoblast activity and accelerates new bone formation for orthopedic applications.

Keywords:
SLAcalciumosseointegrationosteogenic activityplasma immersion ion implantationtitanium

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Area of Science:

  • Biomaterials Science
  • Orthopedic Engineering
  • Surface Chemistry

Background:

  • Improving osseointegration of titanium implants is crucial for orthopedic applications.
  • Hierarchical microstructures and bioactive elements enhance bone-implant integration.

Purpose of the Study:

  • To investigate the effect of calcium ion implantation on sandblasted and acid-etched titanium (SLA) surfaces.
  • To evaluate the in vitro and in vivo performance of Ca-SLA-treated Ti for enhanced osseointegration.

Main Methods:

  • Fabrication of hierarchical topography on Ti using sandblasting and acid etching (SLA).
  • Calcium plasma immersion ion implantation (Ca-PIII) to introduce calcium ions.
  • In vitro cell culture studies (adhesion, proliferation, osteogenic markers).
  • In vivo evaluations (Micro-CT, histology, mechanical testing).

Main Results:

  • Ca-PIII did not significantly alter surface wettability or roughness.
  • Ca-SLA-treated Ti promoted osteoblast adhesion, proliferation, and osteogenic gene/protein expression.
  • In vivo studies demonstrated accelerated new bone formation around Ca-SLA-treated Ti implants.
  • Ca-SLA-treated Ti showed enhanced new bone formation in early stages.

Conclusions:

  • Calcium ion implantation onto SLA-treated titanium surfaces effectively enhances osteoblast response.
  • Ca-SLA-treated Ti implants show significant potential for promoting osseointegration in orthopedic applications.