The average durability of implants is generally very good, with more than 90% of them being functional after 10 years. Many factors influence the longevity of a dental implant, but if they are well maintained, they will last for many years, sometimes a lifetime. However, you must be prepared to look after your implants and present for regular inspections at your dentist. As with conventional crowns, dentures and fillings, implants may require occasional maintenance or replacement of the supported crown during their lifetime.