Aim of the work. The aim of the present study is to assess the implant osseointegration, as well as the course of bone regeneration and healing process, thanks to the sinus lift procedure and by using PRF as a filling material, in association with Bio-Oss.
Materials and methods. 23 patients were involved in this study, requiring maxillary sinus lift to place implants in the posterior maxillary region. As we selected cases in which the height of the residual bone was superior to 5 mm, we opted for the surgical procedure of one-stage sinus lift (implant insertion occured concurrently with sinus lift, and the healing and integration time was 6-9 months). Before inserting the implant, a small quantity of filling material was placed in the cavity. For this purpose, the bone fragment stored in saline solution was employed; after being ground, it was mixed with Bio-Oss and PRF.
Results. All patients reported no pain to percussion, no sign of tissue suffering to the soft peri-implant tissues, the presence of an optimal primary stability of the inserted implants and the increase in the peri-implant bone density.
Conclusions. In all the cases included in this protocol, the Authors observed a successful implant-prosthetic rehabilitation. The Authors consider it opportune to conclude by stressing the need to continue this study on a wider cohort of patients, and to carry out large-scale analyses which could provide statistically significant criteria about the success of this procedure.
Sinus Lift; PRF; Bio-Oss; One-staged Procedure.