Fig 1-20 Three implants were used to restore the posterior teeth. A 20-year follow-up photograph. Note the significant mesial migration of the anterior teeth, resulting in a large space between the canine and the implant-supported fixed dental prosthesis (black arrow) . Note also the apical migration of bone and soft tissue around the two posterior implants (white arrows) .
Fig 1-21 (a) Delivery; (b) 6-year follow-up; (c) 20-year follow-up. Note the continuous apical migration of bone and soft tissues around these implant-retained fixed dental prostheses. Also, note the progressive eruption and mesial migration of the adjacent natural dentition, and the numerous instances of chipping and fracture of the laminated porcelain. (Courtesy of Dr A. Davodi.)
Summary
Osseointegrated implants are highly predictable when used appropriately, and in many situations, implant treatment is as predictable or even more predictable than any of the conventional restorative procedures used to restore missing dentition. The key to predictable outcomes when implants are employed is accurate diagnosis and appropriate treatment planning, taking into account significant patient history findings such as parafunctional activities as well as implant biomechanics and the occlusal schemes to minimize undesirable occlusal forces. Successful outcomes are best accomplished in a multidisciplinary setting. The purpose of these volumes is to share with clinicians the approach to patient evaluation and treatment that has enabled the authors to provide these services with a very high degree of success. Indeed, when implant therapy is planned and executed properly, taking into account the basic principles of prosthodontics, it is the authors’ expectation that once the implants are osseointegrated, while the prostheses that are retained by the implants may need to be replaced due to wear or breakage, the implants should last the lifetime of the patient. Recent innovations, including tilted implants, new and improved CAD/CAM systems, advances in implant body design, surgical enhancement of bone and soft tissues associated with the implant sites, and refinement of loading protocols, have improved implant and prosthesis success.
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