Estimating implant survival isn’t necessarily complex, but it wouldn’t be considered simple either. When determining how long a dental implant is likely to last, a Kaplan-Meier analysis is typically used. This strategy allows periodontists to accurately estimate the lifespan of the implant under a variety of different conditions. The Kaplan-Meier analysis is one of the most commonly used methods of survival analysis. The estimate is often useful in many situations, particularly in the medical field. For example, it can be used to examine recovery rates, the likelihood of death in certain circumstances, and whether or not a treatment was effective. The Kaplan-Meier analysis is a statistic, and many estimators are used to gauge its variance. A common estimator is Greenwood’s formula. Naturally, patients want their implants to last as long as possible, making calculating implant survival with a number of variables clinically applicable.