Surface roughness and Streptococcus mutans adhesion on surface sealant agent coupled interim crown materials after dynamic loading

Table 3 Mean R_a0 and R_a1 values (μm), standard deviations (SD) and the statistical summaries of test groups

Interim Material	Surface Treatment	R_a0		R_a1		t-test** (P values)
Interim Material	Surface Treatment	Mean (SD)	Tamhane*	Mean (SD)	Tamhane*	t-test** (P values)
Tab	Con	1.66 (0.39)	Cb	1.83 (0.37)	Aa	0.433
	Ps	0.31 (0.26)	Aa	1.35 (0.58)	Aa	0.002
	Og	0.52 (0.08)	ABa	2.29 (1.00)	Aa	0.004
	Bc	0.53 (0.15)	Aa	1.60 (0.44)	Aa	0.001
Dnt	Con	1.08 (0.26)	Bb	3.18 (0.64)	Bb	0.001
	Ps	0.32 (0.11)	Aa	1.91 (0.86)	Aa	0.003
	Og	0.40 (0.14)	ABa	2.50 (0.53)	Aab	0.001
	Bc	0.56 (0.18)	Aa	1.95 (0.46)	Aa	0.001
Prt	Con	0.74 (0.18)	Ab	0.91 (0.13)	Aa	0.066
	Ps	0.22 (0.09)	Aa	1.41 (0.64)	Aab	0.003
	Og	0.68 (0.24)	Bb	1.34 (0.71)	Aab	0.049
	Bc	0.47 (0.12)	Aab	2.12 (0.99)	Ab	0.004
Tmp	Con	0.81 (0.14)	Ab	1.88 (1.01)	Aa	0.030
	Ps	0.51 (0.18)	Aab	2.09 (0.54)	Aa	0.001
	Og	0.22 (0.11)	Aa	1.91 (0.53)	Aa	0.001
	Bc	0.48 (0.19)	Aab	1.70 (0.88)	Aa	0.010

*Statistical comparisons between interim material/surface treatment groups were shown as letters and values having same letters are not significantly different for Tamhane test (p > 0.05). The capital letters indicates the comparisons between same surface treatment applied interim material groups and the small caps indicates the differences between surface treatment groups for the same interim material
**The pairwise comparisons of R_a0 and R_a1 values with independent sample t-test (P < 0.05 indicates statistical significance)

ISSN: 1472-6831