How Long Do Dental Implants Last?

Expected Lifespan by Component

• Implant post: 20–30+ years with good hygiene
• Abutment: Often lifetime unless damaged
• Crown: 10–15 years average
• All-on-4 prosthesis: 10–15 years — may need reline or remake

Factors That Shorten Implant Life

• Smoking — doubles early failure risk
• Uncontrolled diabetes or periodontal disease
• Grinding (bruxism) without a night guard
• Skipping professional cleanings around the implant

Maintenance schedule

See your dentist every 6 months for implant-site cleaning. At-home care: soft brush, non-abrasive paste, floss or water flosser around the crown. Peri-implantitis (gum infection around implant) is the main long-term threat — catch it early.

All-on-4 and full-arch longevity

Full-arch prostheses typically need replacement or reline every 10–15 years ($5,000–$15,000). The implants themselves often remain — only the denture portion is remade. Factor this into full-mouth cost planning.

Cost over 20 years vs alternatives

A bridge may need replacement every 7–10 years ($3,000–$5,000 each time). Dentures need reline every 2–3 years. A single implant + one crown replacement often has lower 20-year total cost — see implant vs bridge comparison.