Sinus floor augmentation using miniscrew and in situ hardening biomaterial: method and case report

Sinus floor augmentation poses significant challenges when dealing with severe pneumatization. Traditional approaches often require extensive surgical access and may not ensure stable graft placement. Prior research has shown that pneumatized maxillary sinuses limit bone volume available for implant placement. It was already known that standard augmentation techniques risk membrane perforation and graft displacement. That uncertainty drove the need for alternative stabilization methods. No prior work had resolved the issue of securing graft material in unstable subantral spaces. This gap motivated exploration of minimally invasive stabilization tools. The researchers propose a novel approach using endoscopic guidance and in situ hardening materials.

The aim of this study is to describe a new endoscopically assisted sinus floor augmentation method. The specific problem addressed is the difficulty of stabilizing graft material in pneumatized sinus cavities. The motivation stems from the limitations of conventional techniques in such cases. This paper introduces a stepwise approach using a mini screw and antroscopic control. The goal is to provide a less invasive alternative for challenging augmentation sites. The method combines trepanation, membrane tunnelling, and precise graft placement. The researchers propose that this technique reduces surgical trauma and improves graft stability. The study demonstrates the procedure through a single case example.

The method involves three key steps. First, the lateral sinus wall is trepanated, and the sinus membrane is tunnelled. A subantral space is then created for graft placement. Second, a mini screw is inserted under subantroscopic guidance. This screw serves as a stabilization anchor. Third, the graft material is placed in a stepwise manner with antroscopic control. The in situ hardening material is selected for its ability to set within the space. Endoscopic visualization ensures accurate placement without excessive tissue disruption. The procedure is demonstrated in a single clinical case to illustrate the technique. The approach emphasizes minimal invasiveness and real-time monitoring.

The case example demonstrates successful sinus floor augmentation using the described method. The mini screw provided stable anchoring for the graft material. Antroscopic control allowed precise placement of the in situ hardening material. The procedure was performed with minimal surgical access and no membrane perforation. The patient experienced reduced postoperative discomfort compared to conventional methods. The graft material remained in place during the healing period. The endoscopic assistance ensured accurate placement without excessive tissue manipulation. The researchers propose that this technique is suitable for challenging pneumatized sinus cases.

The authors suggest that this endoscopically assisted technique is a viable option for difficult sinus augmentation cases. The mini screw and in situ hardening material combination provides stabilization in unstable spaces. The use of antroscopic control enhances precision and reduces surgical trauma. The researchers propose that this method may be preferable to conventional approaches in pneumatized sinuses. The case example supports the feasibility of the described approach. The method allows for controlled graft placement without requiring large surgical access. The researchers propose that this technique may reduce the risk of membrane perforation. The study highlights the potential of minimally invasive tools in complex dental augmentation.