Computer-guided minimally invasive sinus augmentation with the Hiossen OneCAS system: a case report

Area of Science:

• Oral surgery
• Dental implantology
• Periodontology

Background:

• Posterior maxillary implant placement is frequently hindered by inadequate bone height.
• Sinus augmentation procedures are crucial for addressing this limitation.

Purpose of the Study:

• To demonstrate a minimally invasive, guided crestal sinus lift using the Hiossen OneCAS hydraulic system.
• To evaluate the efficacy of this approach in patients with limited posterior maxillary bone height.

Main Methods:

• A case report detailing a 74-year-old female patient requiring maxillary molar extraction.
• The procedure involved extraction, ridge preservation, and guided crestal sinus augmentation with the Hiossen OneCAS system.
• Simultaneous implant placement in molar and premolar sites was performed.

Main Results:

• Successful osseointegration and prosthetic rehabilitation were achieved.
• The guided approach minimized complications and yielded favorable stability and esthetic results.
• Effective augmentation was achieved despite initial crestal bone height of only 4.02 mm.

Conclusions:

• The Hiossen OneCAS system offers a feasible and minimally invasive solution for guided hydraulic sinus elevation and implant placement in atrophic posterior maxillae.
• This technique reduces surgical morbidity and enhances prosthetically driven accuracy.
• Further long-term studies are recommended to confirm predictability and functional outcomes.