Table 2.
L values of Icon® resin infiltration | l values of Clinpro™ XT varnish | Intergroup comparison | Intragroup comparison | ||
---|---|---|---|---|---|
Icon® resin infiltration | Clinpro™ XT varnish | ||||
T0 | 73.60 ± 7.71 | 74.62 ± 7.33 | p = 0.295 | T0 vs T1, p = 0.000** | T0 vs T1, p = 0.000** |
T1 | 78.37 ± 5.94 | 78.93 ± 5.40 | p = 0.446 | T1 vs T2,p = 0.211 | T1 vs T2, p = 0.003** |
T2 | 80.08 ± 6.46 | 81.68 ± 5.55 | p = 0.041* | T2 vs T3, p = 0.168 | T2 vs T3, p = 0.069 |
T3 | 81.88 ± 6.27 | 83.69 ± 5.29 | p = 0.017* | T0 vs T3, p = 0.000** | T0 vs T3, p = 0.000** |
Adjacent sound enamel | 81.67 ± 4.69 | 82.73 ± 4.66 | p = 0.117 | T3 vs adjacent sound enamel, p = 0.999 | T3 vs adjacent sound enamel, p = 0.761 |
Statistical Tests: intergroup comparison—independent Student’s t test; intragroup comparison—one-way repeated measures ANOVA
L lightness, T0 before intervention, T1 immediate after intervention, T2 3 months, T3 6 months
*p < 0.05, **p < 0.01