Enhanced bone bonding to nanotextured implant surfaces at a short healing period: A biomechanical tensile testing in the rat femur

Coelho P. G., Zavanelli R. A., Salles M. B., Yeniyol S., Tovar N., Jimbo R.

Implant Dentistry, vol.25, no.3, pp.322-327, 2016 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 3
  • Publication Date: 2016
  • Doi Number: 10.1097/id.0000000000000436
  • Journal Name: Implant Dentistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.322-327
  • Keywords: Biomechanical test, Bone bonding, Calcium phosphate, Implant surface, In vivo, Titanium alloy
  • Istanbul Gelisim University Affiliated: No

Abstract

Purpose: To compare the bone bonding capabilities of 2 different surface treatments at an early healing period. Titanium alloy (Ti6Al4V) custom-made rectangular plates (1.4 × 2.4 × 4 mm) were either dual acid etched (Ti6Al4V- DAE) or DAE/nanotextured blasted (Ti6Al4V-NTB). Materials and Methods: Implants were placed in the distal femurs of 10 Wistar rats and were allowed to heal for 9 days. After euthanasia, the bone immediately proximal and distal to the implant was removed to test the bone bonding force with a universal testing machine. Ultrastructure of the bone/implant interface was assessed by scanning electron microscopy. Results: Ti6Al4V-NTB samples exhibited significantly greater bond strength than Ti6Al4V-DAE samples. Morphologically, the Ti6Al4V- NTB surfaces presented intimate interaction with bone, whereas little interaction between the Ti6Al4V-DAE surface and bone was observed. Conclusion: The results of this study indicated a significant increase in bone bonding for the DAE/nanotextured blasted surface, which is suggested to be the outcome of the nanotexturing.