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Effect of etched microgrooves on hydrophilicity of titanium and osteoblast responses: A pilot study.

Park JA, Leesungbok R, Ahn SJ, Lee SW - J Adv Prosthodont (2010)

Bottom Line: Etched microgrooves significantly increased the hydrophilicity of Ti compared to the smooth Ti. 60 µm-wide etched microgrooves significantly enhanced cell proliferation, whereas the osteogenic activity showed statistically non-significant differences between groups.Result of the osteogenic activity significantly correlated with those of hydrophilicity and cell proliferation.However, statistically non-significant increase in the ALP activity suggests further investigation.

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics, Graduate School of Dentistry, Kyung Hee University, Seoul, Korea.

ABSTRACT

Purpose: The aim of this pilot study was to investigate the effect of etched microgrooves on the hydrophilicity of Ti and osteoblast responses.

Material and methods: Microgrooves were applied on Ti to have 15 and 60 µm width, and 3.5 and 10 µm depth by photolithography, respectively. Further acid etching was applied to create Ti surfaces with etched microgrooves. Both smooth- and acid-etched Ti were used as the controls. The hydrophilicity of Ti was analyzed by determining contact angles. Cell proliferation and osteogenic activity of MC3T3 mouse preosteoblasts were analyzed by bromodeoxyuridine assay and alkaline phosphatase (ALP) activity test, respectively. One-way ANOVA, Pearson's correlation analysis and multiple regression analysis were used for statistics.

Results: Etched microgrooves significantly increased the hydrophilicity of Ti compared to the smooth Ti. 60 µm-wide etched microgrooves significantly enhanced cell proliferation, whereas the osteogenic activity showed statistically non-significant differences between groups. Result of the osteogenic activity significantly correlated with those of hydrophilicity and cell proliferation. Hydrophilicity was determined to be an influential factor on osteogenic activity.

Conclusion: This study indicates that increase in hydrophilicity of Ti caused by etched microgrooves acts as an influential factor on osteogenic activity. However, statistically non-significant increase in the ALP activity suggests further investigation.

No MeSH data available.


Related in: MedlinePlus

Multiple-comparison result of the alkaline phosphatase activity test of MC3T3 mouse preosteoblasts on titanium substrata with various surface topographies after 1, 7 and 14 days of osteogenic culture. Statistical significances were tested among NE0, NE15/3.5, NE60/10, E0, E15/3.5, and E60/10 using one-way ANOVA (n = 3). The result showed no significant differences in the osteoblastic differentiation between and within all groups (P < .05).
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Figure 4: Multiple-comparison result of the alkaline phosphatase activity test of MC3T3 mouse preosteoblasts on titanium substrata with various surface topographies after 1, 7 and 14 days of osteogenic culture. Statistical significances were tested among NE0, NE15/3.5, NE60/10, E0, E15/3.5, and E60/10 using one-way ANOVA (n = 3). The result showed no significant differences in the osteoblastic differentiation between and within all groups (P < .05).

Mentions: In ANOVA, multiple comparisons of the MC3T3 cells' osteogenic activity data from the ALP activity test after 1, 7 and 14 days of osteogenic culture showed no significant differences in the mean ALP activity values (Fig. 4).


Effect of etched microgrooves on hydrophilicity of titanium and osteoblast responses: A pilot study.

Park JA, Leesungbok R, Ahn SJ, Lee SW - J Adv Prosthodont (2010)

Multiple-comparison result of the alkaline phosphatase activity test of MC3T3 mouse preosteoblasts on titanium substrata with various surface topographies after 1, 7 and 14 days of osteogenic culture. Statistical significances were tested among NE0, NE15/3.5, NE60/10, E0, E15/3.5, and E60/10 using one-way ANOVA (n = 3). The result showed no significant differences in the osteoblastic differentiation between and within all groups (P < .05).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2984515&req=5

Figure 4: Multiple-comparison result of the alkaline phosphatase activity test of MC3T3 mouse preosteoblasts on titanium substrata with various surface topographies after 1, 7 and 14 days of osteogenic culture. Statistical significances were tested among NE0, NE15/3.5, NE60/10, E0, E15/3.5, and E60/10 using one-way ANOVA (n = 3). The result showed no significant differences in the osteoblastic differentiation between and within all groups (P < .05).
Mentions: In ANOVA, multiple comparisons of the MC3T3 cells' osteogenic activity data from the ALP activity test after 1, 7 and 14 days of osteogenic culture showed no significant differences in the mean ALP activity values (Fig. 4).

Bottom Line: Etched microgrooves significantly increased the hydrophilicity of Ti compared to the smooth Ti. 60 µm-wide etched microgrooves significantly enhanced cell proliferation, whereas the osteogenic activity showed statistically non-significant differences between groups.Result of the osteogenic activity significantly correlated with those of hydrophilicity and cell proliferation.However, statistically non-significant increase in the ALP activity suggests further investigation.

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics, Graduate School of Dentistry, Kyung Hee University, Seoul, Korea.

ABSTRACT

Purpose: The aim of this pilot study was to investigate the effect of etched microgrooves on the hydrophilicity of Ti and osteoblast responses.

Material and methods: Microgrooves were applied on Ti to have 15 and 60 µm width, and 3.5 and 10 µm depth by photolithography, respectively. Further acid etching was applied to create Ti surfaces with etched microgrooves. Both smooth- and acid-etched Ti were used as the controls. The hydrophilicity of Ti was analyzed by determining contact angles. Cell proliferation and osteogenic activity of MC3T3 mouse preosteoblasts were analyzed by bromodeoxyuridine assay and alkaline phosphatase (ALP) activity test, respectively. One-way ANOVA, Pearson's correlation analysis and multiple regression analysis were used for statistics.

Results: Etched microgrooves significantly increased the hydrophilicity of Ti compared to the smooth Ti. 60 µm-wide etched microgrooves significantly enhanced cell proliferation, whereas the osteogenic activity showed statistically non-significant differences between groups. Result of the osteogenic activity significantly correlated with those of hydrophilicity and cell proliferation. Hydrophilicity was determined to be an influential factor on osteogenic activity.

Conclusion: This study indicates that increase in hydrophilicity of Ti caused by etched microgrooves acts as an influential factor on osteogenic activity. However, statistically non-significant increase in the ALP activity suggests further investigation.

No MeSH data available.


Related in: MedlinePlus