During the last years, the use of dental implants is becoming a common practice and peri-implant diseases are more frequently evident. Apparently, as time goes by and also implies from the available literature, we will be seeing more and more cases of peri-implant diseases. The reported prevalence in the literature reaches almost 30 to 50% of implant patients.

This is also an important aspect of informed consent for our patients. Another troubling issue with regards to peri-implant diseases is the lack of appropriate, well-documented gold-standard treatment, specifically for peri-implantitis. There are many suggested treatment options described in case reports and case series in the literature; none of them seems to provide a predictable long-term resolution of the disease. In order to prevent and treat peri-implant diseases, there is a need to understand the nature of the disease and the risk factors.

Learning objectives of this lecture:

• To understand the risk factors for peri-implant diseases.
• To explore ways to prevent peri-implant diseases.
• To recognize the occurrence as well as the currently available treatment options for peri-implantitis.
• To understand the prognostic systems for teeth and implants.
• To develop realistic expectations in terms of implant health and disease.