The five-year success rate of full-mouth dental implants is about 95%-98%, and the ten-year success rate is about 95%. Since there are not enough reports in the literature to support longer-term observational studies, it is not possible to further describe the success rate, but only to say that it varies from person to person. The longest observer of full-mouth dental implants, Sven Johansson from Sweden, has been using them for 52 years. Single dental implants are usually retained for a similar period of time as natural teeth, provided that they are well protected on a daily basis and require regular check-ups and maintenance, as well as good oral hygiene and cleaning. The life span of dental implants varies greatly among individuals. If some patients have proper bone quality, good bone quantity and careful maintenance, the life span will be extended. At the same time, the life expectancy of full mouth dental implants is also related to the quality of the brand of implant used and the technical level of the implant surgeon. In conclusion, dental implant technology has become more mature and patients can use it without worrying about its lifespan.