Less expensive procedure when comparing restoring one segment or one side of the arch with bone grafting or sinus lifts and sev- eral root form implants to a one subperiosteal implant with 1 or more abutment, the expenses would be way less than the bone grafting procedures.
In a case report under the title REPLACEMENT OF A MANDIBULAR SUBPERIOSTEAL IMPLANT12 the author replaced a subperiosteal implant, which had been in successful service for approximately 15 years.
3 Bodine RL, Yanase T, Bodine A: Forty years of experience with subperiosteal implant dentures in 41 edentulous patients, J Prosthet Dent 75:33, 1996
11 Cranin AN et al: An in vitro comparison of the computerized tomography/CAD- CAM and direct bone impression techniques for subperiosteal implant model gen- eration, J oral implantol 24; 74, 1998.
Mansueto: Replacement of a Mandibular Subperiosteal Implant, jour- nal of oral implantology Vol.