Table 2: Ranking of various combinations of materials and beverages

Rank (R-Mean)		Subgroups		Mean (change in microhardness)
1		Subgroup A (III)—conventional composite + Yakult		27.80
2		Subgroup A (II)—conventional composite + Pulpy		31.30
3		Subgroup A (IV)—conventional composite + Rasna		32.43
4		Subgroup B (III)—nanocomposite + Yakult		40.63
5		Subgroup A (I)—conventional composite + Coca-Cola		41.13
6		Subgroup B (IV)—nanocomposite + Rasna		64.40
7		Subgroup B (II)—nanocomposite + Pulpy		64.96
8		Subgroup B (I)—nanocomposite + Coca-Cola		69.67
9		Subgroup C (III)—compomer + Yakult		82.3
10		Subgroup D (III)—nano-ionomer + Yakult		85.7
11		Subgroup C (II)—compomer + Pulpy		90.7
12		Subgroup C (IV)—compomer + Rasna		92.33
13		Subgroup C (I)—compomer + Coca-Cola		94.37
14		Subgroup D (IV)—nano-ionomer + Rasna		95.2
15		Subgroup D (II)—nano-ionomer + Pulpy		96.33
16		Subgroup E (III)—enamel + Yakult		121.77
17		Subgroup D (I)—nano-ionomer + Coca-Cola		126.5
18		Subgroup E (IV)—enamel + Rasna		137.16
19		Subgroup E (II)—enamel + Pulpy Orange		154
20		Subgroup E (I)—enamel + Coca-Cola		176.72