Table 3 Caries increment of LRB, HRB and HRI group at 6, 12 and 24 months

6 m

Increment dmfs/DMFS

LRB

0.05 (0.23)

< 0.001*

LRB

HRB

0.001*

HRB

2.52 (2.58)

LRB

HRI

0.002*

HRI

2.83 (3.27)

HRB

HRI

0.824

Increment dmft/DMFT

LRB

0.05 (0.23)

< 0.001*

LRB

HRB

< 0.001*

HRB

0.76 (0.94)

LRB

HRI

< 0.001*

HRI

0.93 (1.46)

HRB

HRI

0.893

12 m

Increment dmfs/DMFS

LRB

0.47 (1.17)

< 0.001*

LRB

HRB

< 0.001*

HRB

5.09 (4.96)

LRB

HRI

< 0.001*

HRI

4.45 (4.46)

HRB

HRI

0.818

Increment dmft/DMFT

LRB

0.26 (0.65)

0.005*

LRB

HRB

0.038*

HRB

1.03 (1.40)

LRB

HRI

0.011*

HRI

0.95 (1.18)

HRB

HRI

0.999

24 m

Increment dmfs/DMFS

LRB

0.95 (2.12)

< 0.001*

LRB

HRB

< 0.001*

HRB

6.75 (4.05)

LRB

HRI

< 0.001*

HRI

5.91 (4.79)

HRB

HRI

0.709

Increment dmft/DMFT

LRB

0.53 (1.12)

0.004*

LRB

HRB

0.008*

HRB

1.67 (1.53)

LRB

HRI

0.012*

HRI

1.57 (1.40)

HRB

HRI

0.960