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Updated: Feb 17, 2026

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla

Published on: October 18, 2021

Computer guided sinus floor elevation through lateral window approach with simultaneous implant placement.

Ahmed H Osman¹, Hesham Mansour², Mohammed Atef³

¹Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, British University in Egypt, Cairo, Egypt.

Clinical Implant Dentistry and Related Research

|December 2, 2017

Summary

Computer-aided design/computer-aided manufacturing (CAD/CAM) surgical guides reduce membrane perforations in maxillary sinus floor elevation. This technology offers a safe alternative to traditional methods for implant dentistry.

Keywords:

CAD/CAM atrophic maxilla maxillary sinus augmentation osseointegration sinus floor elevation

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Last Updated: Feb 17, 2026

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Area of Science:

Dental Implantology
Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM)

Background:

CAD/CAM technology enhances precision and accuracy in implant dentistry procedures.
Maxillary sinus floor elevation is a common procedure in implant dentistry.

Purpose of the Study:

To compare the efficacy of CAD/CAM surgical guides versus the standard technique for reducing membrane perforation during maxillary sinus floor elevation.
To evaluate the safety and accuracy of computer-guided surgery in this context.

Main Methods:

Twenty maxillary sinus elevation cases were randomized into two groups: computer-guided and standard lateral window approach.
Both groups underwent simultaneous implant placement with the sinus elevation procedure.

Main Results:

The computer-guided group had a significantly lower incidence of membrane perforation (1 out of 10 cases) compared to the non-guided group (3 out of 10 cases).
Sinus septa were present in 3 cases in the guided group and 2 cases in the non-guided group, with perforations occurring in 2 of these in the non-guided group.

Conclusions:

Computer-guided sinus floor elevation using CAD/CAM technology demonstrated promising results in reducing membrane perforations.
This technique offers a safe and accurate alternative to the standard lateral window approach for maxillary sinus elevation in implant dentistry.