Zygomatic fixtures--the Sydney experience

Area of Science:

• Oral and Maxillofacial Surgery
• Restorative Dentistry
• Dental Implantology

Background:

• Atrophic maxilla presents significant challenges for full denture stability and implant-supported restorations.
• Traditional bone grafting for dental implants is invasive and not suitable for all patients.
• Osseointegrated dental implants are a viable solution but often require extensive bone augmentation in atrophic maxillae.

Purpose of the Study:

• To evaluate the efficacy of combining zygomatic fixtures with conventional implants in the anterior maxilla for fixed restorations.
• To offer a less morbid and time-efficient treatment alternative to bone grafting for patients with severe maxillary atrophy.
• To present clinical outcomes for patients treated with this hybrid implant approach.

Main Methods:

• Placement of zygomatic implants anchored in the zygoma.
• Simultaneous or sequential placement of conventional implants in the anterior maxilla.
• Restoration with a fixed maxillary prosthesis.
• Evaluation of treatment time, morbidity, and prosthetic stability.

Main Results:

• Successful prosthetic rehabilitation was achieved in all five patients.
• The combined technique allowed for shorter treatment duration compared to traditional grafting procedures.
• Patients experienced reduced surgical morbidity.
• Stable and retentive fixed restorations were provided.

Conclusions:

• The combination of zygomatic implants and anterior maxilla implants is a viable and effective treatment for patients with severe maxillary atrophy.
• This approach significantly reduces treatment time and patient morbidity.
• It provides a stable, fixed prosthetic solution, overcoming the limitations of conventional dentures and extensive grafting.