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Updated: Jul 14, 2025

Formation of Human Periodontal Ligament Cell Spheroids on Chitosan Films
Published on: June 19, 2019
Assessment of bone morphogenetic protein-7 loaded chitosan/β-Glycerophosphate hydrogel on periodontium tissues
Ahmed M Badr1, Hany K Shalaby2, Mohamed A Awad3
1Faculty of Dentistry, Sinai University, Egypt.
Background:
Periodontitis is a long-term, multifactorial inflammatory condition that is triggered by bacterial germs and interacts with the host's immune system. The unique attachment of fibrous tissue between the cementum and bone presents a challenge for periodontal regeneration.
Aim:
To achieve the lowest optimum dose of BMP-7 that helps in periodontal regeneration, involving newly formed cementum, PDL and bone.
Materials And Methods:
Five healthy mongrel dogs were used for the study. A critical class III furcation defect was created using rotating burs. The bone defects (ten defects for each group) were allocated to one of the subsequent groups: (Group 1) control with the surgical defect only. (Group 2) Surgical defect implanted with hydrogel only (CS/β-GP). (Group 3) Surgical defect implanted with CS/BMP-7 (50 ng/ml). (Group 4) Surgical defect implanted with CS/BMP-7 (100 ng/ml).
Results:
Histomorphometric and H&E analysis revealed a statistically significant difference in bone, PDL, and cementum regeneration defects filled with CS/BMP-7 (100 ng/ml) compared with other groups.
Conclusion:
The standard effective dose for BMP-7 use in periodontal regeneration is 100 ng/ml.
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