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Accelerated Bone Formation in Distracted Alveolar Bone After Injection of Recombinant Human Bone Morphogenetic Protein‐2
Author(s) -
Terbish Munkhdulam,
Yoo SeongHun,
Kim HeeJin,
Yu HyungSeog,
Hwang ChungJu,
Baik HyungSeon,
Cha JungYul
Publication year - 2015
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.2015.140697
Subject(s) - distraction osteogenesis , bone morphogenetic protein , alveolar ridge , beagle , bone morphogenetic protein 2 , dentistry , dental alveolus , medicine , bone density , chemistry , surgery , distraction , osteoporosis , pathology , implant , biology , neuroscience , biochemistry , in vitro , gene
Background: This study evaluates the effect of recombinant human bone morphogenetic protein‐2 (rhBMP‐2) on the quality and quantity of regenerated bone when injected into distracted alveolar bone. Methods: Sixteen adult beagle dogs were assigned to either the control or rhBMP‐2 group. After distraction was completed, an rhBMP‐2 dose of 330 μg in 0.33 mL was injected slowly into the distracted alveolar crest of the mesial, middle, and distal parts of the alveolar bone in the experimental group. Histologic and microcomputed tomography analyses of regenerated bone were done after 2 and 6 weeks of consolidation. Results: After 6 weeks of consolidation, the vertical defect height in the middle of the regenerated bone was significantly lower in the rhBMP‐2 group (2.2 mm) than in the control group (3.4 mm) ( P <0.05). Additionally, the width of the regenerated bone was significantly greater in the rhBMP‐2 group (4.3 mm) than in the control group (2.8 mm) ( P <0.05). The bone density and volume of regenerated bone in the rhBMP‐2 group were greater than in the control group after 6 weeks of consolidation ( P <0.001). Conclusion: Injection of rhBMP‐2 into regenerated bone after a distraction osteogenesis procedure significantly increased bone volume in the dentoalveolar distraction site and improved both the width and height of the alveolar ridge and increased the bone density.