Vertical ridge augmentation: surgical protocol and retrospective evaluation of 48 consecutively inserted implants

Area of Science:

• Dental Implantology
• Periodontology
• Regenerative Medicine

Background:

• Vertical ridge augmentation is crucial for successful dental implant placement in edentulous patients.
• Predictable bone regeneration techniques are essential for optimizing implant outcomes.
• Previous studies have explored various methods for bone augmentation with varying success rates.

Purpose of the Study:

• To evaluate the predictability of vertical ridge augmentation around dental implants using a specific surgical protocol.
• To assess the efficacy of autogenous bone grafts combined with barrier membranes for bone regeneration.
• To determine the influence of strict protocol adherence on clinical outcomes and complication rates.

Main Methods:

• Retrospective analysis of 14 partially and 4 fully edentulous patients treated between 1993 and 1995.
• Placement of 48 implants with exposed cover screw circumference (2-7 mm).
• Application of autogenous bone grafts (bone-filtering aspirator) and barrier membranes, followed by coronal flap displacement.

Main Results:

• Of 22 membranes used, 3 were prematurely exposed. The remaining 19 remained covered for 12 months.
• Complete bone fill was observed in the 19 cases with intact membranes.
• Histologic analysis confirmed vital bone formation, with minor connective tissue in some coronal areas.

Conclusions:

• Accurate adherence to the described surgical protocol significantly enhances the predictability of vertical ridge augmentation.
• The technique, involving autogenous bone grafts and barrier membranes, effectively promotes bone regeneration around dental implants.
• Minimizing clinical complications is achievable through meticulous protocol execution, leading to reliable augmentation outcomes.