The Effect of Desensitizing Toothpastes and Coffee Staining on the Optical Properties of Natural Teeth and Microhybrid Resin Composites: An In-Vitro Study

Table 4

Color differences of composites after brushing and staining with coffee.

	Group SF	Group SA	Group PcH	Group CPC	Group A	Group N	Group C
	1.6±0.2^a	1.2±0.2^b	1.3±0.1^b	0.8±0.1^c	0.7±0.1^c	0.6±0.1^c	1.1±0.1^bc
	3.1±0.2^ax	2.7±0.1^acdx	2.3±0.2^bcdx	2.8±0.2^acx	2.6±0.2^acdx	2.1±0.2^bdx	2.2±0.2^dx
	1.5 ± 0.5^a	1.3 ± 0.2^a	1.1 ± 0.4^abc	0.8 ± 0.1^b	1.0 ± 0.2^bc	0.9 ± 0.2^bc	0.4 ± 0.1^b
	3.1 ± 0.4^ax	2.9 ± 0.3^bx	1.9 ± 0.3^ax	3.0 ± 0.2^abx	2.6 ± 0.4	1.8 ± 0.3^bx	1.8 ± 0.2^bx
	0.6 ± 0.2^a	0.7 ± 0.2^a	0.3 ± 0.2^b	0.2 ± 0.1^b	0 ± 0.2^b	0 ± 0.3^b	0.1 ± 0.2^b
	1.1 ± 0.3^a	0.4 ± 0.4^bx	0.6 ± 0.3^bx	0.8 ± 0.3^abx	0.8 ± 0.3^abx	0.4 ± 0.2^bx	0.4 ± 0.2^bx
	1.8 ± 0.3^a	1.1 ± 0.5^bc	1.5 ± 0.4^ab	1 ± 0.2^c	0.4 ± 0.2^d	0.3 ± 0.2^d	0.3 ± 0.2^d
	3.3 ± 0.3^ax	3.1 ± 0.2^abx	2.9 ± 0.4^bx	3.1 ± 0.4^abx	3.2 ± 0.6^abx	2.7 ± 0.3^bx	2.8 ± 0.4^bx

Note. x = significant differences between the - , - , - , and - values (p < 0.05); same superscript letters in the same row indicate no significant differences between the groups (p > 0.05).