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In vivo studies of titanium implant surface treatment by sandblasted, acid-etched and further anchored with ceramic of tetracalcium phosphate on osseointegration

  • Jian-Chih Chen
  • Chia-Ling Ko
  • Dan-Jae Lin
  • Hui-Yu Wu
  • Chun-Cheng Hung
  • Wen-Cheng Chen
Research
  • 14 Downloads

Abstract

The objective was to investigate and compare the osseointegrative responses of sandblasted/acid-etched (SLA) and calcium phosphate (CaP) implants in vivo. The CaP implant was prepared by control group of SLA surface modification and anchoring with sintering ceramic of tetracalcium phosphate (TTCP) to form a mechanical interlocking film. Customized screw Ti implants (size Ø 2.0 mm × 6 mm length) were utilized to histologically examine the bone-to-implant contact (BIC) after implantation. The implant stability quotient scales in the postoperative implants within femurs were recorded. Subsequently, the postoperative implants were scanned using microcomputed tomography (micro-CT), and the topography was examined microscopically to analyze the BIC conditions. The SLA and CaP implant groups showed increased bone mineral density (g/cm3) and BIC (%). Compared with the SLA implant, the CaP implant with TTCP improved the early osteointegration of the BIC at 1-month post-operation and demonstrated quantitative effects on the BIC at 1-month post-operation. SLA and CaP implants all showed good osseointegration through micro-CT analysis (1–6 months). The current findings suggest the CaP anchoring Ti surface demonstrated improvement in early stages of osseointegration and thus shows the potential clinical benefits of TTCP anchoring on Ti surfaces in bone-level solutions.

Keywords

Titanium Calcium phosphate Surface modification Sandblasted and acid etched (SLA) Histological 

Notes

Acknowledgements

The authors acknowledge and appreciate the assistance of Ms. Cian-Hua Liou, Ms. Ya-Yuan Chang, and Present Company Tuo-Huo Chang who customized and free provided the screw implants by Alliance Global Technology Co. in this research. The authors also thank the Precision Instrument Support Center of Feng Chia University, which provided the fabrication and measurement facilities. The assistance of the participants in this research is also acknowledged.

Funding

This work was supported by the Ministry of Science and Technology, Taiwan [grant numbers MOST 103-2221-E-035-099- and 105-2221-E-035-021-MY3].

Compliance with ethical standards

The animal testing procedures employed in this study were approved by the Institutional Animal Care and Use Committee of Kaohsiung Medical University. National Institutes of Health (NIH) guidelines for the care and use of laboratory animals (NIH Publication #85-23 Rev. 1985) were observed.

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

41779_2018_292_MOESM1_ESM.docx (274 kb)
ESM 1 (DOCX 273 kb)

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Copyright information

© Australian Ceramic Society 2019

Authors and Affiliations

  1. 1.Department of Orthopedics, Faculty of Medical School, College of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
  2. 2.Department of OrthopaedicsKaohsiung Municipal Siaogang HospitalKaohsiungTaiwan
  3. 3.Department of Fiber and Composite MaterialsFeng Chia UniversityTaichungRepublic of China
  4. 4.Dental Medical Devices and Materials Research Center, College of Dental MedicineKaohsiung Medical UniversityKaohsiungTaiwan
  5. 5.Laser and Additive Manufacturing Technology CenterIndustrial Technology Research InstituteHsinchuTaiwan
  6. 6.Department of Dental HygieneChina Medical UniversityTaichungTaiwan
  7. 7.School of Dentistry, College of MedicineChina Medical UniversityTaichungTaiwan
  8. 8.Department of ProsthodonticsKaohsiung Medical University HospitalKaohsiungTaiwan

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