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Recent Advances and Prospects in β-type Titanium Alloys for Dental Implants Applications
João V Calazans Neto1, Cícero A S Celles1, Catia S A F de Andrade1
1Department of Prosthodontics and Periodontology, Piracicaba Dental School, Universidade Estadual de Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil.
ACS Biomaterials Science & Engineering
|August 31, 2024
Summary
Beta titanium alloys offer improved biocompatibility and mechanical properties for dental implants, reducing stress shielding and enhancing osseointegration. Further research is needed to optimize alloy composition and manufacturing for long-term clinical success.
Area of Science:
- Biomaterials Science
- Materials Engineering
- Orthopedic Research
Background:
- Titanium alloys, particularly Ti-6Al-4V, are common in implantology but have limitations like high modulus and potential cytotoxicity.
- Developing beta titanium alloys with elements like Mo, Nb, Sn, and Ta aims to overcome these challenges.
Purpose of the Study:
- To comprehensively review current beta titanium alloys for implantology.
- Evaluate their mechanical properties (especially modulus of elasticity) and corrosion resistance.
- Analyze physical, mechanical, electrochemical, tribological, and biological characteristics.
Main Methods:
- Systematic literature search identifying 81 relevant articles.
- Analysis of alloy formation and processing methods (e.g., arc melting).
- Evaluation of mechanical, electrochemical, and biological properties.
Main Results:
- Beta titanium alloys exhibit a lower modulus of elasticity, closer to bone, reducing stress shielding.
- Improved corrosion resistance due to a stable titanium oxide layer formed by beta stabilizers.
- Enhanced mechanical strength, hardness, and reduced cytotoxicity and bacterial adhesion observed.
Conclusions:
- Beta titanium alloys show significant promise for orthopedic and dental implants due to favorable mechanical and biological properties.
- Further research is essential for optimizing alloy composition, understanding long-term effects, and advancing manufacturing techniques for enhanced biocompatibility and clinical application.
