This question is very frequently asked, and it is difficult to answer. The guarantees assumed are a little misleading, so please read carefullyDental implants come with a manufacturers guarantee of 5 years, 10 years, and lifetime guarantee. Does this mean that that implant is likely to function for 5 or 10 years? It does not. The manufacturers guarantee simply means that the dental implant will be guaranteed against structural failures resulting from manufacturing errors.