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Conservative Maxillary Sinus Floor Elevation via a Crestal Approach Using Vertical Expander Screw Technique
Mahdi Kadkhodazadeh1, Mehdi Ekhlasmand Kermani2, Reza Amid1
1Dentofacial Deformities Research Center, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Objective:
Contemporary implantology is moving toward less invasive approaches. To date, several techniques have been proposed for maxillary sinus lift surgery. In this article, we introduce a new technique for maxillary sinus floor elevation that is less invasive than the osteotome technique.
Methods And Materials:
In the vertical expander screw (VES) technique, which uses a combination of drilling and bone-expander screws; a primary implant hole is created. Bone expander screws are used in lateral and vertical dimensions to elevate the sinus membrane.
Results:
The results at the two-year follow-up revealed bone formation around the implant body in the bony sinus cavity for three patients. Accordingly, 100% survival and success rates were reported for implants placed with VES technique.
Conclusion:
The maxillary sinus floor can be elevated to the desired height with a VES technique with minimal invasion. The VES technique can be used as an alternative to elevate the sinus floor with less invasion than the osteotome technique.
