Change in crown-to-implant ratio of implants placed in grafted and non-grafted posterior maxillary sites: A 5-year prospective randomized study.

Original Language: EN

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Abstract

Osteotome sinus floor elevation (OSFE) is a technique aimed at simplifying implant placement in the posterior atrophic maxilla. The necessity of bone grafting under the elevated sinus membrane has been widely debated. The aim was to compare the evolution over 5 years of implant stability in sites grafted or left ungrafted.