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The present study investigated the surface properties and murine pre-osteoblast cell (MC3T3-E1) responses of phosphoric acid (H3PO4) treated commercially pure titanium. Titanium discs were treated with various concentration of H3PO4 (5%, 10%, and 20%; v/v) at 90 °C for 30 min. Surface properties were evaluated by profilometer, contact angle meter, and scanning electron microscopy (SEM) with energy dispersive X-rays. MC3T3-E1 attachment and spreading were evaluated by SEM and phalloidin immunohistochemistry staining. Surface roughness and wettability were not statistically difference among all experimental and control groups. Phosphate and oxygen were detected on H3PO4 treated surfaces. At 20 min, cell attachment was significantly higher in 10% and 20% H3PO4 treated groups compared to the control. Cells exhibited orientated-cytoskeleton fibers on 20% H3PO4 modified titanium surface. Though, there was no difference in cell spreading stage among all treatment groups. H3PO4 treatment on titanium may influence early cell response, particularly on attachment and spreading.


Thanaphum Osathanon, Chenphop Sawangmake, Nanticha Ruangchainicom, Pavitra Wutikornwipak, Panisa Kantukiti, Nunthawan Nowwarote, Prasit Pavasant. Surface properties and early murine pre-osteoblastic cell responses of phosphoric acid modified titanium surface. Journal of oral biology and craniofacial research. 2016 Jan-Apr;6(1):2-9

PMID: 26937362

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