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Periodontal healing using a collagen matrix with periodontal ligament progenitor cells in a dehiscence defect model in beagle dogs

Authors
 Seung-Yoon Yoo  ;  Jung-Seok Lee  ;  Jae-Kook Cha  ;  Seul-Ki Kim  ;  Chang-Sung Kim 
Citation
 JOURNAL OF PERIODONTAL AND IMPLANT SCIENCE, Vol.49(4) : 215-227, 2019 
Journal Title
 JOURNAL OF PERIODONTAL AND IMPLANT SCIENCE 
ISSN
 2093-2278 
Issue Date
2019
Keywords
Collagen matrix ; Dehiscence defect ; Periodontal ligament progenitor cells ; Periodontal regeneration
Abstract
Purpose: To histologically characterize periodontal healing at 8 weeks in surgically created dehiscence defects in beagle dogs that received a collagen matrix with periodontal ligament (PDL) progenitor cells. Methods: The bilateral maxillary premolars and first molars in 6 animals were used. Standardized experimental dehiscence defects were made on the buccal side of 3 premolars, and primary culturing of PDL progenitor cells was performed on the molars. Collagen matrix was used as a scaffold and a delivery system for PDL progenitor cells. The experimental sites were grafted with collagen matrix (COL), PDL progenitor cells with collagen matrix (COL/CELL), or left without any material (CTL). Histologic and histomorphometric analyses were performed after 8 weeks. Results: The defect height from the cementoenamel junction to the most apical point of cementum removal did not significantly differ across the CTL, COL, and COL/CELL groups, at 4.57±0.28, 4.56±0.41, and 4.64±0.27 mm (mean ± standard deviation), respectively; the corresponding values for epithelial adhesion were 1.41±0.51, 0.85±0.29, and 0.30±0.41 mm (P<0.05), the heights of new bone regeneration were 1.32±0.44, 1.65±0.52, and 1.93±0.61 mm (P<0.05), and the cementum regeneration values were 1.15±0.42, 1.81±0.46, and 2.57±0.56 mm (P<0.05). There was significantly more new bone formation in the COL/CELL group than in the CTL group, and new cementum length was also significantly higher in the COL/CELL group. However, there were no significant differences in the width of new cementum among the groups. Conclusions: PDL progenitor cells carried by a synthetic collagen matrix may enhance periodontal regeneration, including cementum and new bone formation.
Files in This Item:
T201904993.pdf Download
DOI
10.5051/jpis.2019.49.4.215
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Periodontics (치주과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seul-Ki(김슬기)
Kim, Chang Sung(김창성) ORCID logo https://orcid.org/0000-0003-3902-1071
Lee, Jung Seok(이중석) ORCID logo https://orcid.org/0000-0003-1276-5978
Cha, Jae Kook(차재국) ORCID logo https://orcid.org/0000-0001-6817-9834
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/174592
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