Chapter 84

Insight: Defining the long-term outcomes of implant therapy can be confusing depending on the definition used. One has to understand the differences between “Success” and “Survival”

Clinical Consideration: In the figure to the left there is a Panoramic radiograph of an individual with an implant placed in the position of a missing maxillary right central incisor. The implant appears to be placed in a nonrestorable position. It is osseointegrated and could technically be counted as a “surviving” implant but must be considered a failure because it does not meet the intended goal and has not been restored into function.

Some implant outcomes are reported simply as the presence or absence of the implant(s) at the time of the last examination, regardless of whether the implant was in function, suffered from bone loss, or had other problems. This type of assessment is a measure of implant survival and should not be confused with implant success.

Implant success is defined by specific criteria used to evaluate the condition and function of the implant. Albrektsson et al3 defined implant success as an implant with no pain, no mobility, no radiolucent peri-implant areas, and less than 0.2 mm of bone loss annually after the first year of loading.

To get more in-depth information please read Chapter 84