Development of an Implant-supported Overdenture in Consideration of the Prosthetic Space

Abstract

Patient: A 78-year-old female presented with a chief complaint of mastication difficulty using upper and lower complete dentures. The lower denture was supported by magnetic attachments for implant abutments, but it was poorly maintained and unstable due to an excessively narrow base area. To resolve the mastication disorder, the prosthetic space was calculated using piezography, and a denture with lingualized occlusion was created.

Discussion: The morphology of the new denture fitting the perioral muscles and the tongue, as well as magnetic attachment use and lingualized occlusion, improved the maintenance level and stability, increasing patient satisfaction.

Conclusions: To obtain favorable outcomes in patients using complete dentures with marked mandibular residual ridge resorption, positioning artificial teeth in consideration of perioral muscles and tongue movements and designing morphologically appropriate denture bases may be important.