Journal of Dental Hygiene Science : eISSN 2233-7679

Table 2

Change of Lightness Value (L) of Temporary Crown Resin according to Immersion in Different Staining Solution

Group Staining solution Experimental solution p-value* Post hoc test

Distilled watera Black coffeeb Red winec
I Base line 0.67±0.21 0.13±0.55 0.62±0.68 0.43
3 days 1.75±100 1.52±0.64 −1.50±1.87 0.04 a,b>c
7 days 0.82±1.27 −0.30±0.33 6.75±16.37 0.64
II Base line 0.93±0.81 −0.63±1.20 −1.55±0.30 0.05
3 days 2.63±0.96 0.40±1.04 −2.56±0.57 <0.001 a>b>c
7 days 4.17±1.89 0.70±1.48 54.25±3.66 <0.001 a,b<c
III Base line 3.07±0.31 3.37±0.28 3.12±0.80 0.29
3 days 4.53±0.60 4.22±0.69 −2.00±2.73 <0.001 a,b>c
7 days 3.13±1.11 3.87±1.04 45.25±17.46 <0.001 a,b<c
IV Base line 1.55±1.07 −0.08±0.40 0.50±0.35 0.07
3 days 1.63±2.25 2.72±1.31 0.60±1.54 0.39
7 days 2.00±1.30 1.78±1.64 −2.43±1.99 0.03 a,b>c

Values are presented as mean±standard deviation.

*p-value obtained from Kruskal–Wallis test.

Post hoc obtained from Mann–Whitney U-test.

J Dent Hyg Sci 2022;22:139-47 https://doi.org/10.17135/jdhs.2022.22.3.139
© 2022 J Dent Hyg Sci