Biocompatibility enhancement of an inert ceramic using CO2 laser radiation

Liang Hao; Jonathan Lawrence

doi:10.1117/12.568680

13 January 2005 Biocompatibility enhancement of an inert ceramic using CO2 laser radiation

Liang Hao, Jonathan Lawrence

Proceedings Volume 5629, Lasers in Material Processing and Manufacturing II; (2005) https://doi.org/10.1117/12.568680
Event: Photonics Asia, 2004, Beijing, China

Abstract

Due to their attractive mechanical properties, bioinert ceramics are frequently used in the high load-bearing sites such as orthopaedic and dental implants, but they are chemically inert and do not naturally form a direct bond with bone and thus are lack of osseointegration. A CO₂ laser was used to modify the surface properties of bioinert zirconia with the aim to achieve osseointegration between the material and bone. Higher wettability characteristics generated by the CO₂ laser treatment was primarily due to the enhancement of the surface energy, particularly the polar component, determined by way of microstructural changes. An in vitro test using human fetal osteoblast cells (hFOB) revealed that osteoblast cells adhere better on the laser treated sample than the untreated sample. The change in the wettability characteristics could be the main mechanism governing the osteoblast cell adhesion on the YPSZ.

Citation Download Citation

Liang Hao and Jonathan Lawrence "Biocompatibility enhancement of an inert ceramic using CO2 laser radiation", Proc. SPIE 5629, Lasers in Material Processing and Manufacturing II, (13 January 2005); https://doi.org/10.1117/12.568680

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