Preservation of alveolar ridge height through mechanical memory: A novel dental implant design
Shi Yin, Wenjie Zhang, Yanmei Tang, Guangzheng Yang, Xiaolin Wu, Sihan Lin, Xuanyong Liu, Huiliang Cao, Xinquan Jiang
Journal:Bioactive Materials
IF:8.72
DOI:10.1016/j.bioactmat.2020.07.015
PMID:32817915
Published:2020-08-10
research field:力学生物学生物材料牙种植学组织工程
Abstract
Irreversible marginal bone loss can hinder recovery around dental implants. Insufficient alveolar osteogenesis and stress concentration during chewing contribute to marginal bone resorption and can result in implant failure. A biomaterial with a micropore-channel structure was developed using 3D printing technology. This design facilitated bony ingrowth and provided similar mechanical stimulation at the implant neck during mastication to a natural tooth. The micropore channels provided a guiding structure for bone mesenchymal stem cell proliferation and differentiation without the need for growth factors. Specifically, this was achieved through mechanical transduction by F-actin remodeling and the activation of Yes-associated protein (YAP). The implants were verified in a canine dental implant surgery model, which demonstrated the promising use of biomaterial-based dental implants in future clinical applications.
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