The primary function of a dental implant is to act as an abutment for a prosthetic device, similar to a natural tooth root and crown. Any success criteria, therefore, must include first and foremost support of a functional prosthesis. In addition, although clinical criteria for prosthetic success are beyond the scope of this article, patient satisfaction with the esthetic appearance of the implant restoration is necessary in clinical practice.
The restoring dentist designs and fabricates a prosthesis similar to one supported by a tooth, and as such often evaluates and treats the dental implant similarly to a natural tooth. Yet, fundamental differences in the support system between these entities should be recognized. The purpose of this article is to use a few indices developed for natural teeth as an index that is specific for endosteal root-form implants. This article is also intended to update and upgrade what is purported to be implant success, implant survival, and implant failure. The Health Scale presented in this article was developed and accepted by the International Congress of Oral Implantologists Consensus Conference for Implant Success in Pisa, Italy, October 2007.
*Professor and Director of Oral Implantology, Department of Periodontology and Implant Dentistry, Temple Dental School, Philadelphia, PA.
†Private Practice, Providence, RI; Visiting Faculty, Boston University, Goldman School for Dental Medicine, Boston, MA.
‡Professor and Director of Graduate Periodontics, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI.
§Professor of Oral and Maxillofacial Surgery, Faculty of Medicine, Head of Department of Oral Surgery, University of Naples “Federico II”, Naples, Italy.
∥Associate Professor, Oral Surgery and Implant Dentistry Department, University of Granada, Spain.
¶Private Practice, Pescara, Italy; Scientific Director of Bio. C.R.A Biomaterials Clinical Research Association, Pescara, Italy; Director Biomaterial Research Laboratory, Instituto Ortopedico Galeazzi, Milano, Italy.
#Private Practice, Neckargemund, Germany; Adjunct Assistant Professor, Boston University, Boston, MA.
**Assistant Professor, University of Genova, Italy; Vice President of Bio. C.R.A. Biomaterials Clinical Research Association, Pescara, Italy; Private Practice, Italy.
††Private Practice, Baden-Baden, Germany; Clinical Professor, New York University, College of Dentistry, New York, NY.
‡‡Private Practice, Palm Harbor, FL.
§§Faculty, Department of Oral and Maxillofacial Surgery, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
∥∥Private Pain Clinic, Nice, France.
¶¶Dean and Professor of Oral and Maxillofacial Surgery, University Hospital, School of Dentistry, University of Seveille, Spain.
##Clinical Assistant, Department of Oral and Maxillofacial Sciences, University of Naples (Federico II).
***Private practice, Athens, Greece.
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