Background: Implant placement in the posterior maxilla can be a challenging procedure due to the reduced quantity and relatively low quality of bone below the maxillary sinus. The aim of this case series was to demonstrate the process and the outcome of transcrestal sinus floor elevation with simultaneous implant placement.
Materials and methods: Four patients were treated with five implants placed using the bone-added osteotome sinus floor elevation (BAOSFE) advocated by Summers. Surgical considerations including interarch relationship, width of alveolar crest, vertical bone height, and sinus floor anatomy were evaluated. Treatment of these sites involved flap reflection, osteotomy with BAOSFE, implant placement, and guided bone regeneration if needed. Clinical parameters and radiographic examinations were evaluated at baseline and postoperatively.
Results: All implants survived throughout the follow-up period of 1–5 years. The alveolar bone height of these sites was successfully gained. Dome-shaped graft materials were noted surrounding implant apex, and bone remodeling was noted in the course of the time. Complications like benign paroxysmal positional vertigo (BPPV) were encountered episodically.
Conclusion: Transcrestal sinus floor elevation with simultaneous implant placement and guided bone regeneration may yield successful outcomes. Osteotome instruments optimize and facilitate dental implant placement in posterior maxilla in terms of bone condensation and sinus floor elevation. Several parameters should be evaluated for choosing the surgical techniques.