In most well-planned cases, artificial tooth roots are considered a safe & predictable long-term option for replacing missing teeth. Long follow-up studies have reported high survival rates over 10 years & a 2024 meta-analysis found that long-term survival can remain strong even out to 20 years, although regular follow-up remains essential. The practical point is simple: implants usually perform well, but they are not maintenance-free as well as should never be described as a lifetime guarantee.