Journal List > J Korean Acad Periodontol > v.28(3) > 1049031

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Kwon, Park, Herr, Chung, Han, and Lee: Guided Bone Regeneration with a PDGF-BB-loaded Resorbable Membrane in the Dehisced Implant of the Beagle Dog
Original Article

The Journal of the Korean Academy of Periodontology 1998; 28(3): 431-451.

Published online: 30 September 1998

DOI: https://doi.org/10.5051/jkape.1998.28.3.431

Guided Bone Regeneration with a PDGF-BB-loaded Resorbable Membrane in the Dehisced Implant of the Beagle Dog

Young-Hyuk Kwon*, Joon-Bong Park*, Yeek Herr*, Chong-Pyung Chung**, Soo-Boo Han**, Seung-Jin Lee***

*Department of Periodontology, College of Dentistry, Kyunghee University, Korea.

**Department of Periodontology, College of Dentistry, Seoul National University, Korea.

***College of Pharmacy, Ewha Women's University, Korea.

Copyright © 1998 Korean Academy of Periodontology

Abstract

4 beagle dogs aged over one and half years and weighed 15 to 16 Kg were utilized in this study. Experimental dehiscent defects were made in the mandibular edentulous area after removal of lower premolar. e-PTFE membrane resorbable membrane, and PDGF-BB-loaded resorbable membrane were covered at the dehiscent defects around the dental implants respectively. Animal was sacrificed at 1, 2, 3 months respectively. Non-decalicifed specimens were made and mutiple-stained for light microscopic study.
The results were as follows:
1. Dehiscent defects around the implant installed in the beagle dog were an excellent defect model for studying guided bone regeneration.
2. Fibroblasts penetrated into expanded-PTFE membrane was observed and inflammatory cell infiltration was also observed around the membrane.
3. Resorbable membrane was degradaded and resorbed at 1 month after application to the dehiscent defect. Though multinucleated giant cells were observed adjacent to the membrane, that had no reverse effect on the bone regeneration.
4. PDGF-BB-loaded resorbable membrane was same capability as the resorbable membrane and e-PTFE membrane in the guided bone regeneration.
5. PDGF-BB-loaded resorbable membrane-applied site was better than resorbable membrane-applied site in the speed and maturity of bone formation.
Within the above results, it was suggested that PDGF-BB-loaded resorbable membrane might have same bone regeneration capacity as nonresorbable membrane in the dehisced implant of the beagle dog and potentiality to use in human subjects.

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