Alnufaiy Banna M, Lambarte Rhodanne Nicole A, Al-Hamdan Khalid S
BDS, Resident; Department of Periodontics and Community Dentistry College of Dentistry, King Saud University, Riyadh, KSA.
Molecular and Cell Biology Laboratory, Prince Naif bin AbdulAziz Health Research Center, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
J Stem Cells Regen Med. 2020 Dec 11;16(2):44-49. doi: 10.46582/jsrm.1602008. eCollection 2020.
: Chitosan is a promising polymer that has been used for coating dental implants. However, research concerning coatings with implant surfaces other than commercially pure titanium is limited. Therefore, this study aims to clarify the chitosan material's effect with two degrees of deacetylation (DDA) as coatings for laser surface microtopographic implants. : Sixty-three Laser-Lok (LL) implant discs were divided into three groups (21 in each group), and two groups were coated with either 80 or 95 DDA chitosan. The groups were categorized as LL 95, LL 80, or LL control. Then, hMSC-TERT 20 cells were used to evaluate the cell morphology, viability, and osteogenic capacity of the chitosan material 7 and 14 days after culture. Two-way ANOVA followed by one-way analysis of variance (ANOVA) and Tukey's post hoc test were used. : All samples were biocompatible and allowed cell attachment. However, cell spreading and attachment were noticeably increased in the LL 95 group. There was a significant increase in the expression of osteogenic markers in chitosan-coated samples compared to the control group. The 95 DDA-coated group exhibited higher ALP, Runx2, osteocalcin, and osteonectin expression compared to the 80 DDA and control groups on days 7 and 14. : A high DDA of chitosan promotes biomineralization and osteoblast formation. Therefore, this combination of laser surface and chitosan can enhance future dental implant healing processes and osseointegration.
壳聚糖是一种很有前景的聚合物,已被用于牙科植入物涂层。然而,关于除商业纯钛以外的植入物表面涂层的研究有限。因此,本研究旨在阐明两种脱乙酰度(DDA)的壳聚糖材料作为激光表面微观形貌植入物涂层的效果。
63个Laser-Lok(LL)植入盘被分为三组(每组21个),其中两组分别用80或95 DDA的壳聚糖进行涂层。这些组分别归类为LL 95、LL 80或LL对照组。然后,使用hMSC-TERT 20细胞在培养7天和14天后评估壳聚糖材料的细胞形态、活力和成骨能力。采用双向方差分析,随后进行单向方差分析(ANOVA)和Tukey事后检验。
所有样品均具有生物相容性并允许细胞附着。然而,LL 95组的细胞铺展和附着明显增加。与对照组相比,壳聚糖涂层样品中成骨标志物的表达显著增加。在第7天和第14天,95 DDA涂层组与80 DDA组和对照组相比,碱性磷酸酶(ALP)、Runx2、骨钙素和骨连接蛋白的表达更高。
高脱乙酰度的壳聚糖可促进生物矿化和成骨细胞形成。因此,这种激光表面和壳聚糖的组合可以增强未来牙科植入物的愈合过程和骨整合。