Radiographic and surgical guide for placement of multiple implants.

摘要

It is the responsibility of the restorative dentist to fabricate a surgical guide that dictates to the surgeon exact placement of each implant. Misaligned implants complicate the clinical and laboratory procedures in the fabrication of definitive restorations. The nonparallel placement of implants, especially when multiple implants are placed, can cause nonaxial loading during function, which may compromise the long-term success of the implants.Several types of surgical guides have been reported. Some are designed for placement of a single implant, while othe-r reports present designs for multiple single implants,5implant fixed partial dentures, and implant-retained overdentures. Three techniques commonly used for preparing the guide holes and fabricating the radiographic and surgical implant guide are free-hand, milling, and the use of computer-aided design/computer-assisted manufacture (CAD-CAM) technology.