Maxillary Sinus Membrane Elevation Using a Special Drilling System and Hydraulic Pressure: A 2-Year Prospective...

Area of Science:

• Oral and Maxillofacial Surgery
• Dental Implantology
• Regenerative Dentistry

Background:

• Maxillary sinus augmentation is crucial for dental implant placement in atrophic jaws.
• Minimally invasive techniques are sought to reduce morbidity and improve patient outcomes.

Purpose of the Study:

• To assess the clinical and radiographic results of a novel crestal approach sinus (CAS) kit for maxillary sinus membrane elevation.
• To evaluate implant survival, complications, and marginal bone loss following CAS procedures.

Main Methods:

• A prospective study involving 35 patients undergoing 49 crestal sinus elevations using the CAS kit.
• Patients with residual bone height ≥ 3 mm were included; grafting decisions were based on planned implant length.
• Outcomes included implant/prosthesis failure, complications, and marginal bone loss (MBL) over a minimum 2-year follow-up.

Main Results:

• No implant or prosthesis failures were recorded in any of the 49 procedures.
• No intraoperative or postoperative complications, including membrane tears, were observed.
• Mean marginal bone loss (MBL) at 2 years was 0.33 ± 0.24 mm. Sinus grafting showed significantly higher remodeling (SGRI).

Conclusions:

• The CAS kit offers a safe and effective minimally invasive option for crestal sinus elevation.
• Preliminary results indicate favorable clinical and radiographic outcomes, with potential benefits for sinus grafting.
• Further long-term randomized controlled trials are warranted to validate these findings in larger cohorts.