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. 2020 Mar 6;10:4195. doi: 10.1038/s41598-020-60815-8

Table 3.

ICDAS-II Codes and Code Changes in Control and Test Groups at baseline and after 90, 180, and 360 days follow-up.

ICDAS-II Class and Class Change Control Group Test Group 1 Test Group 2
n(%) Missing (%)/ Filledb(%) n(%) Missing (%)/ Filledb(%) n(%) Missing (%)/ Filledb(%)
Baseline 30(100) 30(100) 30(100)
2 19(63.3) 19(63.3) 24(80)
3 11(37.7) 11(37.7) 6(20)
Day 90 29(96.7) 1(3.3) 29(96.7) 1(3.3) 30(100) 0
−1 0 1(3.3) 0
Unchanged 26(86.7) 28(93.3) 30(100)
+1 2(6.7) 0 0
+3 1(3.3) 0 0
Restored after visit 2(6.7) 0 0
Day 180 23(76.7) 7(23.3)/2(6.7) 28(93.3) 2(6.7)/0 28(93.3) 2(6.7)/0
−1 0 0 0
Unchanged 19(63.3) 28(93.3) 28(93.3)
+1 4(13.3) 0 0
Restored after visit 0 0 1(3.3)
Day 360 23(76.7) 7(23.3)/2(6.7) 27(90) 3(10)/0 27(90) 3(10)/1(3.3)
−1 0 2(6.7) 6 (20)
unchanged 16(53.3) 25(83.3) 21(70)
+1 7(23.3) 0 0
Restored after visit 4(13.3) 0 0
Total restored during trial 6(20.0) 0 1(3.3)
Control vs Test 1 Control vs Test 2 Test 1 vs Test 2
Odds’ Ratio (95 CI%)a 1.20 (1.05–1.37) 1.27 (1.10–1.47) 1.05 (0.96–1.15)
p-value 0.008 0.001 0.260

aTested effect: interaction of months and treatment group of GEE (general. Estimation Equation) adjusted for: ICDAS-II at Day 0, sex, age, plaque index at Day 0.

bMissing data due to restorations at a previous visit.