From Implant-Retained Overdenture to Full-Arch Fixed Rehabilitation: A Digital Approach Following Iliac Crest Bone Grafting

49th Annual Congress of the European Prosthodontic Association, Praha, Çek Cumhuriyeti, 1 - 03 Ekim 2026, ss.152, (Özet Bildiri)

Introduction: Severe mandibular ridge resorption may limit implant placement and compromise full-arch

rehabilitation. Autogenous bone grafting remains predictable for horizontal ridge augmentation. This re-

port describes full-arch fixed implant-supported rehabilitation following iliac crest grafting and a digital

prosthetic workflow.

Case Description: A 44-year-old female patient with no significant medical history presented for replace-

ment of an existing mandibular two-implant overdenture and maxillary fixed prosthetic rehabilitation. Fol-

lowing clinical and radiographic evaluation, conversion to a fixed implant-supported mandibular restora-

tion was planned. Due to insufficient buccolingual bone width in the posterior mandible, iliac crest bone

grafting was performed before implant placement. After graft healing, four mandibular implants were

placed and allowed to osseointegrate. Subsequent bone exposure was managed with a connective tissue

graft. After soft tissue healing, multi-unit abutments were selected, and the vertical dimension was estab-

lished with conventional wax rims. Implant and tooth positions were recorded using intraoral photogram-

metry. Impression accuracy was verified with a metal bar and PMMA provisional restoration, both demon-

strating passive fit. To accommodate mandibular flexure, the mandibular prosthesis was fabricated as two

separate segments divided between the central incisors. Definitive monolithic zirconia restorations were

delivered.

Discussion: This case demonstrates that successful fixed rehabilitation can be achieved in patients with

severe mandibular bone deficiency through staged surgical treatment, soft tissue management, and a dig-

ital workflow. Iliac crest grafting, implant therapy, and photogrammetry-assisted procedures facilitated

predictable functional, esthetic, and phonetic outcomes.

Keywords: Full-arch rehabilitation, iliac crest graft, photogrammetry, implant-supported prosthesis, mon-

olithic zirconia