A 5-year follow-up study on one-stage implants inserted concomitantly with localized alveolar ridge augmentation

Area of Science:

• Oral surgery
• Periodontology
• Biomaterials science

Background:

• Alveolar bone defects pose challenges for dental implant placement.
• Guided bone regeneration (GBR) is a technique used to augment bone volume.
• One-stage implant placement simplifies surgical procedures.

Purpose of the Study:

• To evaluate the 5-year clinical and radiographic success of one-stage OSTEOFIX implants placed simultaneously with GBR.
• To assess implant stability and peri-implant tissue health in patients with alveolar bone defects.

Main Methods:

• Seventeen patients received 20 one-stage OSTEOFIX implants with simultaneous GBR.
• Alveolar dehiscence defects were grafted with deproteinized bovine bone mineral (Bio-Oss) and covered with a collagen membrane.
• Clinical and radiographic assessments were performed at prosthesis placement, and at 1 and 5 years post-surgery.

Main Results:

• Mean vertical dehiscence defects ranged from 3.8 mm to 10.0 mm.
• All implants remained stable, painless, and free of biological complications throughout the 5-year follow-up.
• Peri-implant conditions remained stable clinically and radiographically.
• Cumulative implant survival rate was 100%, with an overall success rate of 90%.

Conclusions:

• Simultaneous GBR with collagen membranes and bovine bone mineral provides predictable outcomes for one-stage implant placement in deficient alveolar bone.
• This technique ensures long-term implant stability and favorable peri-implant tissue health.
• One-stage OSTEOFIX implants are a viable option for restoring function in patients with significant bone width limitations.