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universidade de são paulo - Faculdade de Odontologia - Unesp

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84<br />

Table 2 – Means and standard <strong>de</strong>viations (SD) of contact angles (°) obtained<br />

immediately after plasma treatments and after 48 hours of immersion in water<br />

Time of measurement<br />

Immediately after plasma<br />

After 48 h in<br />

Groups<br />

Surfaces<br />

treatment<br />

water<br />

Control Smooth 58.15 (2.97) a 56.15 (2.62) a<br />

Roughened 59.75 (4.95) a 58.31 (4.83) a<br />

AAt/130 W Smooth 2.77 (3.08) a 58.97 (6.38) b<br />

Roughened 1.15 (1.65) a 57.38 (5.52) b<br />

Ar/50 W Smooth 41.77 (5.34) a 45.72 (7.26) b<br />

Roughened 38.46 (4.33) a 47.04 (6.81) b<br />

ArO 2 /70 W Smooth 24.21 (3.84) a 63.51 (6.11) b<br />

Roughened 26.27 (5.51) a 49.61 (7.57) c<br />

ArSF 6 /70 W Smooth 95.84 (5.88) a 63.52 (6.48) b<br />

Roughened 100.72 (7.44) a 55.44 (6.94) c<br />

Means followed by the same superscript lower case letters within the same group<br />

are not different at a level of p

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