Extended Pre-Implant Horizontal Ridge Augmentation by Resorbable Membrane and Deproteinized Bovine Bone Mineral Graft: A 5-Year Follow-Up Case Report

(Pages: 54-61)

Annunziata Marco, Nastri Livia, Rullo Rosario, Piccirillo Angelantonio and Guida Luigi

Multidisciplinary Department of Dental and Medical-Surgical Specialties, University of Campania “Luigi Vanvitelli”– Via Luigi De Crecchio, 6 – 80138 – Naples, Italy

DOI: http://dx.doi.org/10.30576/2414-2050.2018.04.9

Case description. A periodontally healthy, non-smoker 69-year-old woman was scheduled to receive a fixed mandibular prosthetic rehabilitation from site #42 to #47. A horizontal guided bone regeneration (GBR) using exclusively a deproteinized bovine bone mineral (DBBM) graft covered with a resorbable collagen membrane was performed to correct the wide pre-existent lateral bone deficiency at the edentulous area. After eight months, three implants were inserted in sites #43, #44 and #46. After three months, an apically repositioned flap was carried out and a screw-retained resin fixed bridge, followed by a cemented metal-ceramic bridge, were put in place. The patient was controlled over time up to a 5-year follow-up.

Results. The GBR procedure with DBBM and resorbable membrane showed a successful result with a significant over-correction of the ridge width. Neither early or late complications of both GBR procedure and implant rehabilitation were registered up to a 5-year follow-up.

Conclusions. Within the limits of this short-term follow-up case report, the use of a collagen membrane combined with DBBM graft showed to be a suitable solution for a two-stage lateral ridge augmentation procedure for implant purposes, also in case of extended bone defects.

Keywords: horizontal ridge augmentation, guided bone regeneration, resorbable membrane, deproteinized bovine bone mineral.