The Effect of Decortication for Periosteal Expansion Osteogenesis Using Shape Memory Alloy Mesh Device

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Abstract

Background: In conventional bone grafting technique, decortication procedure enhances the healing process and bone regeneration to reach the grafted site more readily. Purpose: This study evaluates to improve periosteal expansion osteogenesis (PEO) using a shape memory alloy mesh (SMA) device with decortication in a rabbit model. Materials and Methods: The SMA device was inserted under the periosteum at the forehead and pushed, bent, and attached to the bone surface and fixed with a titanium screw. Twelve rabbits were divided into two groups: PEO without decortication (P group) and with decortication (D group). After 2 weeks, the screw was removed, and the mesh was activated by its own elasticity. Rabbits were sacrificed 5 (P1/D1) and 8 (P2/D2) weeks after operation and histologically and radiographically evaluated. Results: The mean activation height was 2.9±0.5mm. The ratio of new bone volume in the elevated volume was 17.6% in P1, 59.8% in D1 33.4% in P2, and 65.1% in D2. D group had a statistically higher volume of new bone than P group during each period (p<.05). Conclusion: PEO with decortication appears to be a promising clinical alternative for bone augmentation and introduces the new concept of "dynamic graft and guided bone regeneration (GBR)."

Original languageEnglish
Pages (from-to)e376-e384
JournalClinical Implant Dentistry and Related Research
Volume17
DOIs
Publication statusPublished - 2015 Oct

Keywords

  • Decortication
  • Distraction osteogenesis
  • Implant
  • Ni-Ti
  • Periosteum
  • Shape memory alloy

ASJC Scopus subject areas

  • Oral Surgery
  • Dentistry(all)

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