Inclusion Criteria:  men and women over 18 years old, partially or totally edentulous patients with at least one implant placed at the university and loaded 7-19 years before, cemented, screwed or mechanically retained prosthesis, single, partial prostheses, and complete (fixed and removable), patients diagnose of peri-implant health and peri-implantitis and ability to understand study procedures.  Exclusion Criteria:  Some patient that does not follow the inclusion criteria