Beside the dentures, described above, there is a variety of implant-supported prosthetic constructions. These include all kinds of clasps, bar, telescopic, and complex retaining prosthetic constructions, etc.
Review of any special aspects of making all these constructions in this small guidebook does not seem possible. It is more important to get the basic idea of their configuration and to realize that the more links in a chain, the more likely one of them is to fail and snap!
The simplest and economically most accessible option is a complete removable denture, supported by two implants and retained with factory-made spherical clasps [3.5 – 1….3]. These clasps are special abutments produced by all dental implant manufacturers. When the number of the installed implants is more than two, but less than it is needed for a fixed overdenture, different options of bar elements can be heard. Now we’ll examine just a few examples. Regardless of their seeming complexity, these constructions are simple enough.
► While installing two implants for the use of spherical clasps and a removable denture, try to provide their parallel location!
► The most economical construction. Two implants with spherical clasps that retain a complete removable denture.
► It is desirable that the abutments’ spherical elements should be located on the same level, extending above the mucosal surface. To provide this, apply abutments with different height of the subgingival fragment.