Onlay bone grafting of the mandible after periosteal expansion with an osmotic tissue expander: an experimental study in rabbits

Abstract

This study confirms that an osmotic soft tissue expander creates a surplus of periosteum and soft tissue and that new bone can be generated under a titanium mesh or bioresorbable mesh.

The Use of Self-Inflating Soft Tissue Expanders Prior to Bone Augmentation of Atrophied Alveolar Ridges

“…In vitro studies have demonstrated constant expansion rates, achieving increases of up to 30 times the original size . Subsequent animal studies have demonstrated that self‐inflating expanders can create a surplus of soft tissue, facilitating coverage of bone grafts . Additionally, a higher microvessel density in the surrounding soft tissue is described, thus promoting faster osseointegration…”

Pre‐augmentation soft tissue expansion: an overview

“…Moreover, periosteal releasing incisions compromise the integrity of the periosteum overlying the bone graft, which results in diminished blood supply to the bone graft (Abrahamsson et al. ), less new bone formation and poor bone remodelling activity (Zhang et al. ).…”

Self-inflating oral tissue expander for ridge augmentation in the severely atrophic mandible

“…Closure of the flap is more easily achieved in bone graft surgery. The osmotic soft tissue expander creates a surplus of periosteum and soft tissue, which can be used to cover bone grafts5.…”

“…The self-inflating device consists of osmotic active hydrogel, copolymer of methylmethacrylate, and vinylpyrrolidone5.…”