Implants · single question
What is the advantage of zirconia implants compared to titanium implants besides esthetics?
Show answer and explanation
Correct answer: D. Less corrosion
- A. Zirconia implants are generally MORE EXPENSIVE than titanium implants.
- B. Titanium actually has BETTER FRACTURE TOUGHNESS than zirconia. Zirconia is more brittle and can fracture under high flexural loads — it is NOT stronger overall than titanium.
- C. Titanium remains the gold standard for osseointegration. While zirconia achieves acceptable osseointegration, it is not superior to titanium in this regard.
- D. ZIRCONIA (ceramic) implants have LESS CORROSION than titanium implants because zirconia is a ceramic and does not corrode in the biological environment. Titanium, while highly corrosion-resistant, can release titanium ions over time. Zirconia offers: less corrosion, good osseointegration, no metal sensitivity, and improved esthetics in thin gingival biotypes.