期刊
MATERIALS
卷 15, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/ma15124095
关键词
regenerative endodontic procedures; tissue engineering; tissue regeneration; hyaluronic acid; Restylane; scaffolds
类别
资金
- King Saud University, Riyadh, Saudi Arabia [RSP2022R471]
This study histologically evaluated the outcome of regenerative endodontic procedures (REPs) using Restylane Lyft as a scaffold. The results showed that combining a blood clot with Restylane Lyft as a scaffold can significantly improve vascularization and collagen fiber formation in regenerated soft connective tissues in non-infected, pulpless, immature teeth.
Commercially available hyaluronic acid dermal fillers used as a scaffold in regenerative endodontic procedures (REPs) have demonstrated attractive potentials. This study aimed to histologically evaluate the outcome of REPs using Restylane Lyft (HA) as a scaffold. REPs were performed on pulpless, immature roots in dogs (n = 69). The roots were divided into four groups: blood clot (BC), Restylane Lyft (BC + HA), negative control, and positive control. At 13 weeks postoperatively, hard tissue formation, vascularization, the presence of vascularized soft connective tissue and collagen fibers, the degree of inflammation within pulp spaces and/or periapical tissues, and apical closure were evaluated histologically. The vascularization and formation of loosely arranged collagen fibers within the regenerated soft connective tissues were observed significantly more in the BC+HA group (85% and 40%, respectively; p < 0.05) compared to the BC group (54.6% and 9.1%, respectively; p < 0.05). The degree of inflammation was significantly higher in the HA group than in the BC group; moderate to severe inflammatory cell infiltration was seen in 45% and 13.6% of the cases, respectively. The results of the present study suggest that Restylane Lyft combined with a blood clot used as a scaffold may improve the outcomes of REPs in non-infected, pulpless, immature teeth in dogs.
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