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The Effect of Decortication for Periosteal Expansion Osteogenesis Using Shape Memory Alloy Mesh Device
Author(s) -
Yamauchi Kensuke,
Nogami Shinnosuke,
Tanaka Kenko,
Yokota Sou,
Shimizu Yoshinaka,
Kanetaka Hiroyasu,
Takahashi Tetsu
Publication year - 2015
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12250
Subject(s) - decortication , periosteum , bone healing , medicine , bone grafting , dentistry , surgery , biomedical engineering
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 ( P 1/ D 1) and 8 ( P 2/ D 2) weeks after operation and histologically and radiographically evaluated. Results The mean activation height was 2.9 ± 0.5 mm. The ratio of new bone volume in the elevated volume was 17.6% in P 1, 59.8% in D 1 33.4% in P 2, and 65.1% in D 2. 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 ).”