[Effect of recombinant human bone morphogenetic protein-7 expressed in prokaryocyte to augment bone formation of alveolar ridge].
OBJECTIVE
To investigate new bone formation of alveolar augmentation with recombinant human bone morphogenetic protein-7 (rhBMP-7) expressed in prokaryocyte.


METHODS
To create the model of rabbit extraction socket into which the composites of rhBMP-7 and the gelatin sponge was immediately implanted, then the samples were investigated 2, 4, 8 and 12 weeks postoperatively by gross observation, scanning electron microscope (SEM), quantitative measurement of calcium content and alkaline phosphatase (ALP) activity.


RESULTS
There was significant difference in height of alveolar ridge absorpted between the experimental groups and the carrier control groups through gross observation. The result of SEM showed that bone healing in rhBMP-7 groups was 4-6 weeks earlier than that of control groups. ALP activity in rhBMP-7 groups were obviously high compared with that of control groups.


CONCLUSIONS
The BMP-7 has a satisfactory osteoinduction ability to promote new bone formation and prevent alveolar bone absorption.
Bian
Cui-rong
CR
Dept. of Stomatology, Qilu Hospital of Shandong University, Jinan 250012, China.
Xiao
Shui-qing
SQ
Ji
Ping
P
D000539:Alveolar Process; D000540:Alveolar Ridge Augmentation; D000818:Animals; D055396:Bone Morphogenetic Protein 2; D019485:Bone Morphogenetic Proteins; D004337:Drug Carriers; D006801:Humans; D010012:Osteogenesis; D011817:Rabbits; D011994:Recombinant Proteins; D016212:Transforming Growth Factor beta
D055396:Bone Morphogenetic Protein 2; D019485:Bone Morphogenetic Proteins; D004337:Drug Carriers; D011994:Recombinant Proteins; D016212:Transforming Growth Factor beta