Effect of acidic environment on color and translucency of different indirect restorative materials

BMC Oral Health

Table 2 Comparison of ΔRTP₀₀ between groups from 1st to 10th year using ANOVA and Post Hoc tests

Time Intervals	Group Z Mean ± SD	Group E Mean ± SD	Group C Mean ± SD	Group P Mean ± SD	F-test	P-value
Baseline	48.31 ± 0.02 ^A	48.31 ± 0.02 ^A	48.33 ± 0.03 ^A	48.31 ± 0.02 ^A	1.414	0.257
Amount of change	MD ± SE	MD ± SE	MD ± SE	MD ± SE
1st Year	0.02 ± 0.00 ^Cf	0.02 ± 0.00 ^Cg	0.49 ± 0.10 ^Bh	0.72 ± 0.15 ^Ah#	91.817	< 0.001**
2nd Year	0.02 ± 0.00 ^Cf	0.55 ± 0.06 ^Bh	0.62 ± 0.06 ^Bg#	0.98 ± 0.04 ^Ag#	306.069	< 0.001**
3rd Year	0.02 ± 0.00 ^Df	0.36 ± 0.18 ^Ci	1.31 ± 0.07 ^Bf#	2.82 ± 0.13 ^Af§	266.725	< 0.001**
4th year	0.02 ± 0.00 ^Cf	0.98 ± 0.04 ^Cg#	1.69 ± 0.12 ^Be#	4.02 ± 0.14 ^Ae§	2068.220	< 0.001**
5th year	0.03 ± 0.00 ^Df	1.13 ± 0.08 ^Cf#	2.84 ± 0.12 ^Bd§	4.60 ± 0.12 ^Ad§	2686.183	< 0.001**
6th year	0.72 ± 0.15 ^De#	1.29 ± 0.08 ^Ce#	4.04 ± 0.13 ^Bc§	4.80 ± 0.09 ^Ac§	1885.570	< 0.001**
7th year	0.98 ± 0.04 ^Dd#	1.67 ± 0.13 ^Cd#	4.62 ± 0.11 ^Bb§	6.05 ± 0.09 ^Ab§	3527.573	< 0.001**
8th year	1.13 ± 0.08 ^Dc#	2.82 ± 0.13 ^Cc§	4.82 ± 0.08 ^Ba§	6.18 ± 0.11 ^Ab§	2863.002	< 0.001**
9th year	1.29 ± 0.08 ^Db#	4.02 ± 0.14 ^Cb§	4.82 ± 0.08 ^Ba§	7.40 ± 0.10 ^Aa§	3659.323	< 0.001**
10th Year	1.67 ± 0.13 ^Da#	4.6 ± 0.12 ^Ca§	4.82 ± 0.08 ^Ba§	7.40 ± 0.10 ^Aa§	2851.144	< 0.001**
RM ANOVA	33.01	97.90	102.41	184.53
P-value	< 0.001**	< 0.001**	< 0.001**	< 0.001**

MD Mean Difference, SE Standard error, SD Standard deviation
Different capital letters indicate significant difference at (P ≤ 0.05) among means in the same row
Different small letters indicate significant difference at (P ≤ 0.05) among means in the same column
P-value > 0.05 is insignificant, **means P-value < 0.001 is highly significant
^#means exceeding TPT₀₀ (0.62)
^§means exceeding TAT₀₀ (2.62)

ISSN: 1472-6831