Journal of Dental Hygiene Science : eISSN 2233-7679

Table 4

Comparison of the Mean L* Values ​​or Wine-Stained Tooth Specimens

Group n After 14 days of bleaching treatment After anti-pigmentation treatment After coloring treatment p-value
G1S+C* 6 - 71.42±1.94A 43.2±6.90B 0.002
G2B+S+C 5 72.33±1.07A 70.21±1.90B 41.4±5.60C <0.001
G3B+FV+S+C 4 72.53±1.72A 71.62±1.16A 39.3±7.70B <0.001
G4B+RI+S+C 7 71.84±0.64A 71.41±0.47A 39.4±10.40B <0.001
G5B+E+RI+S+C 7 72.50±1.20A 71.61±0.81A 30.7±10.00B <0.001
p-value†† 0.498 0.635 0.166

*In group 1, as a negative control group, whitening treatment was notperformed and only artificial saliva immersion and coloring treatment were performed.

p-value obtained by performing repeated measured ANOVA analysis.

††p-value obtained by performing Kruskal–Wallis H analysis.

A∼Crepresent the difference in L values after bleaching, treatment, and discoloration, respectively.

J Dent Hyg Sci 2022;22:156-63
© 2022 J Dent Hyg Sci