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Biomaterials. 2014 Jan;35(1):113-22. doi: 10.1016/j.biomaterials.2013.09.074. Epub 2013 Oct 10.

The influence of cellular source on periodontal regeneration using calcium phosphate coated polycaprolactone scaffold supported cell sheets.

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School of Dentistry and Oral Health, Centre for Medicine and Oral Health, Griffith Health Institute, Griffith University (Gold Coast Campus), 16-30 High Street, Southport, QLD 4222, Australia; Molecular Basis of Disease Program, Griffith Health Institute, Australia; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, Renminnan Road, Chengdu, Sichuan 610041, China.


Cell-based therapy is considered a promising approach to achieving predictable periodontal regeneration. In this study, the regenerative potential of cell sheets derived from different parts of the periodontium (gingival connective tissue, alveolar bone and periodontal ligament) were investigated in an athymic rat periodontal defect model. Periodontal ligament (PDLC), alveolar bone (ABC) and gingival margin-derived cells (GMC) were obtained from human donors. The osteogenic potential of the primary cultures was demonstrated in vitro. Cell sheets supported by a calcium phosphate coated melt electrospun polycaprolactone (CaP-PCL) scaffold were transplanted to denuded root surfaces in surgically created periodontal defects, and allowed to heal for 1 and 4 weeks. The CaP-PCL scaffold alone was able to promote alveolar bone formation within the defect after 4 weeks. The addition of ABC and PDLC sheets resulted in significant periodontal attachment formation. The GMC sheets did not promote periodontal regeneration on the root surface and inhibited bone formation within the CaP-PCL scaffold. In conclusion, the combination of either PDLC or ABC sheets with a CaP-PCL scaffold could promote periodontal regeneration, but ABC sheets were not as effective as PDLC sheets in promoting new attachment formation.


Alveolar bone-derived cell; Cell sheet; Gingival margin-derived cell; PCL scaffold; Periodontal ligament cell; Periodontal regeneration

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