Romanos George, Crespi Roberto, Barone Antonio, Covani Ugo
Department of Periodontology and Implant Dentistry, College of Dentistry, New York University, NY 10010, USA.
Int J Oral Maxillofac Implants. 2006 Mar-Apr;21(2):232-6.
Osteoblast attachment on titanium surfaces is necessary to achieve new bone formation and osseointegration. The purpose of this study was to examine osteoblast attachment on irradiated titanium disks.
Machined, hydroxyapatite (HA)-coated, sandblasted, and titanium plasma-sprayed (TPS) surfaces were irradiated with either a carbon dioxide (CO2) or an Er,Cr:YSGG laser. A control group of nonirradiated disks was also examined. Osteoblast cultures were cultivated on the titanium disks and examined with scanning electron microscopy.
The findings demonstrated that osteoblasts could be grown on all of the surfaces. Pseudopodia and a spread of cells that demonstrated maturation were observed on the lased irradiated titanium disks.
The data show that laser irradiation of titanium surfaces may promote osteoblast attachment and further bone formation.
成骨细胞附着于钛表面对于实现新骨形成和骨整合是必要的。本研究的目的是检测成骨细胞在辐照钛盘上的附着情况。
对机械加工、羟基磷灰石（HA）涂层、喷砂处理和钛等离子喷涂（TPS）表面的钛盘，分别用二氧化碳（CO2）激光或铒铬：钇-钪-镓-石榴石（Er,Cr:YSGG）激光进行辐照。还设置了一组未辐照钛盘的对照组。将成骨细胞培养在钛盘上，并用扫描电子显微镜进行观察。
研究结果表明，成骨细胞能够在所有表面上生长。在激光辐照的钛盘上观察到了伪足以及显示成熟的细胞铺展。
数据表明，对钛表面进行激光辐照可能会促进成骨细胞附着和进一步的骨形成。
