Tunnel Technique with a Subperiosteal Bag for Horizontal Ridge Augmentation

Area of Science:

• Dentistry
• Oral Surgery
• Regenerative Medicine

Background:

• Horizontal ridge augmentation is crucial for dental implant success.
• Traditional methods like GBR, ridge splits, and block grafts have limitations.
• Minimally invasive techniques aim to reduce trauma and improve outcomes.

Purpose of the Study:

• To describe a novel tunnel technique for horizontal guided bone regeneration (GBR).
• To evaluate the efficacy of a subperiosteal bag approach for ridge augmentation.
• To assess the potential benefits for wound healing and implant site preparation.

Main Methods:

• A tunnel technique utilizing a subperiosteal bag created from a collagen membrane.
• The collagen membrane bag was partially perforated, folded, and sutured.
• The bag was filled with xenogeneic bone graft (deproteinized bovine bone) and inserted into a subperiosteal tunnel.
• The perforated side faced the alveolar ridge, and the non-perforated side faced the flap.

Main Results:

• The technique preserved periosteum and enhanced flap blood supply.
• This resulted in favorable wound healing and reduced risk of complications.
• Significant horizontal ridge volume gain was achieved, enabling dental implant placement.

Conclusions:

• The described tunnel technique with a customized collagen membrane bag is a viable minimally invasive approach for horizontal GBR.
• This method offers advantages in preserving soft tissues and promoting healing.
• The technique successfully augmented ridge volume, facilitating subsequent implant rehabilitation.