Premium
Periodontal Wound Healing by Transplantation of Jaw Bone Marrow‐Derived Mesenchymal Stem Cells in Chitosan/Anorganic Bovine Bone Carrier Into One‐Wall Infrabony Defects in Beagles
Author(s) -
Zang Shengqi,
Jin Lei,
Kang Shuai,
Hu Xin,
Wang Meng,
Wang Jinjin,
Chen Bo,
Peng Bo,
Wang Qintao
Publication year - 2016
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.2016.150504
Subject(s) - cementum , periodontal fiber , scaffold , molar , mesenchymal stem cell , dentistry , dental alveolus , transplantation , biomedical engineering , chemistry , materials science , medicine , pathology , surgery , dentin
Background: This study aims to evaluate the performance of chitosan/anorganic bovine bone (C/ABB) scaffold seeded with human jaw bone marrow‐derived mesenchymal stem cells (hJBMMSCs) in supporting the healing/repair of 1‐wall critical‐size periodontal defects. Methods: Physical properties of the C/ABB scaffold were compared with those of the chitosan scaffold. hJBMMSCs were obtained from healthy human alveolar bone during the extraction of third molar impacted teeth. One‐wall (7 × 4 mm) infrabony defects were surgically created at the bilateral mandibular third premolars and first molars in six beagles. The defects were randomly assigned to six groups and implanted with different scaffolds: 1) chitosan (C) scaffold; 2) C scaffold with hJBMMSCs (C + cell); 3) C/ABB scaffold (C/ABB); 4) C/ABB scaffold with hJBMMSCs (C/ABB + cell); 5) ABB scaffold (ABB); and 6) open flap debridement (control). The animals were euthanized 8 weeks after surgery for histologic analysis. Results: The C/ABB scaffold had a porous structure and increased compressive strength. Both C/ABB and C/ABB + cell exhibited the newly formed cellular mixed‐fiber cementum, woven/lamellar bone, and periodontal ligament. Cementum formation was significantly greater in group C/ABB + cell than in group C/ABB (2.64 ± 0.50 mm versus 0.91 ± 0.55 mm, P <0.05). For new bone (NB) height, group C/ABB + cell and C/ABB showed mean ± SD values of 2.83 ± 0.29 mm and 2.65 ± 0.52 mm and for NB area 8.89 ± 1.65 mm and 8.73 ± 1.94 mm 2 , respectively. For NB (height and area), there was no significant difference between the two groups. Conclusions: The combination of hJBMMSCs and C/ABB scaffolds could promote periodontal repair. Future studies are expected to further optimize the combination and lead to an ideal periodontal regeneration.