A retrospective analysis of 110 zygomatic implants in a single-stage immediate loading protocol

Area of Science:

• Oral and Maxillofacial Surgery
• Dental Implantology
• Prosthodontics

Background:

• Maxillary atrophy presents significant challenges for oral reconstruction.
• Zygomatic implants offer a solution for edentulous patients with severe maxillary bone loss.
• Immediate loading protocols can expedite treatment timelines.

Purpose of the Study:

• To evaluate the clinical effectiveness of zygomatic implants.
• To assess implant and prosthesis survival rates under immediate loading.
• To determine the predictability of prosthetic reconstruction using zygomatic implants.

Main Methods:

• Retrospective analysis of 56 patients treated between May 2000 and October 2006.
• Inclusion of all patients receiving zygomatic implants with a standardized surgical and restorative protocol.
• Recording of patient demographics, implant details, and survival data.

Main Results:

• 110 zygomatic implants were placed in 56 patients with maxillary atrophy.
• A cumulative implant survival rate of 96.37% was observed over 9 months to 5 years.
• Titanium anodized-surface implants showed no failures, while turned-surface implants had 4 failures. Prosthesis survival was 100%.

Conclusions:

• Zygomatic implants achieve high survival rates (>96%) in patients with severe maxillary atrophy.
• The immediate loading protocol with zygomatic implants provides stable and predictable prosthetic outcomes.
• Surface treatment may influence zygomatic implant longevity.