Retrospective Evaluation of Zygomatic Implant Therapy in Patients With Severe Tooth Agenesis and Maxillary Deficiencies: Clinical Outcomes and Safety up to 15 Years of Follow‐Up
Retrospective study demonstrates high long-term survival of zygomatic implants in severe tooth agenesis, suggesting a viable alternative for severe maxillary deficiencies.
Key Points
To evaluate the clinical outcomes, safety, and long-term efficacy of zygomatic implants in individuals with severe oligodontia, anodontia, and associated maxillary deficiencies.
Reviewed 27 patients (aged 18–37 years, mean 22.63; 20 syndromic) with severe oligodontia or anodontia treated with zygomatic implants over a 15-year period.
Protocols combined extensive bone grafting with conventional implants and either a single zygomatic implant or Quad Zygoma technique, followed by immediate or delayed loading of full-arch prostheses.
Outcomes were tracked over a mean follow-up period of 55.07 months (range: 13.27–179.2 months).
All 85 zygomatic implants achieved successful osseointegration, resulting in an early survival rate of 100%.
Crude survival rates were 98.5% (84/85) for zygomatic implants versus 76.19% (32/42) for conventional implants at the implant level, and 96.3% (26/27) versus 64.71% (11/17) at the patient level.
The primary complications associated with zygomatic implants included maxillary sinus opacification and peri-implant soft-tissue recession.