Biomechanical Evaluation of Amorphous Calcium Phosphate Coated TNTZ Implants Prepared Using a Radiofrequency Magnetron Sputtering System

• Shiraishi Naru

  Research Unit for Interface Oral Health Science, Graduate School of Dentistry, Tohoku University

• Tu Rong

  Institute for Materials Research, Tohoku University

• Uzuka Risa

  Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University

• Anada Takahisa

  Division of Craniofacial Function Engineering, Graduate School of Dentistry, Tohoku University

• Narushima Takayuki

  Department of Materials Processing, Graduate School of Engineering, Tohoku University

• Goto Takashi

  Institute for Materials Research, Tohoku University

• Niinomi Mitsuo

  Institute for Materials Research, Tohoku University

• Sasaki Keiichi

  Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University

• Suzuki Osamu

  Division of Craniofacial Function Engineering, Graduate School of Dentistry, Tohoku University

Abstract

Ti–29Nb–13Ta–4.6Zr alloy (TNTZ), a new β-type Ti alloy, has excellent advantages as a biomaterial, such as low Young’s modulus and cytotoxicity, and the absence of allergens. However, it is unclear whether TNTZ can achieve sufficient osseointegration for it to be used as a dental implant. The effectiveness of surface modification of TNTZ implants by radiofrequency (RF) magnetron sputtering is also unclear. We investigated the biomechanical behaviors of TNTZ implants in vivo, using cylindrical implants of four types: pure Ti, TNTZ, and pure Ti and TNTZ coated with amorphous calcium phosphate (ACP). The implants were inserted in rat femurs, and the femurs were subjected to biomechanical analyses after various time intervals. The results suggest that TNTZ implants can achieve osseointegration similar to that of pure Ti, and that surface modification with ACP by RF magnetron sputtering improves osseointegration, especially in the later stages of healing.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 53 (7), 1343-1348, 2012

  The Japan Institute of Metals and Materials

Keywords

• amorphous calcium phosphate
• dental implant
• osseointegration
• push-in test
• Ti–29Nb–13Ta–4.6Zr (TNTZ)

Details

• CRID: 1390001204249016960
• NII Article ID: 120006846725
• NII Article ID: 10030792226
• NII Article ID: 130004824926
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.m2012078
• COI: 1:CAS:528:DC%2BC38Xhtlantr3E
• ISSN: 13475320
• ISSN: 13459678
• HANDLE: 10097/00127759
• NDL BIB ID: 023781892
• Web Site: https://tohoku.repo.nii.ac.jp/records/130366
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023781892
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/53/7/53_M2012078/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed