Round and flat zygomatic implants: effectiveness after a 1-year follow-up non-interventional study

Area of Science:

• Dentistry
• Oral and Maxillofacial Surgery
• Implantology

Background:

• Limited availability of zygomatic implant (ZI) designs.
• Need for effective rehabilitation solutions in severely atrophic maxillae.

Purpose of the Study:

• To evaluate the effectiveness of two new site-specific ZI designs (ZAGA-Flat and ZAGA-Round).
• To assess their performance when placed using the zygoma anatomy-guided approach (ZAGA) protocol.

Main Methods:

• Non-interventional study involving 20 patients requiring ZI rehabilitation.
• Implants immediately loaded following ZAGA Concept recommendations.
• Success criteria included prosthetic offset, sinus status, soft tissue condition, and implant stability.

Main Results:

• 59 ZI (34 ZAGA-Flat, 25 ZAGA-Round) placed in 20 patients over 12-28 months.
• High insertion torque (>45 N.cm) achieved for most implants; no surgical complications.
• 100% implant/prosthesis survival rate at 1 year, with improved sinus health observed in 17 patients.

Conclusions:

• ZAGA-Flat and ZAGA-Round ZI are viable options for atrophic maxillae rehabilitation.
• The ZAGA protocol facilitates successful outcomes with minimal complications.
• High implant survival and functional stability achieved in challenging cases.