Table 1 Raman band intensities (mean ± SD) of the remaining superficial and deep dentin after different caries removal techniques.

From: An in-vitro evaluation of residual dentin retained after using novel enzymatic-based chemomechanical caries removal agents

 

The superficial layer (50 µm)

The deeper layer(100 µm)

Sound references

Phosphate peak v1-PO43− (960 cm−1)

 H excavation

1730.7 (101.4)*aq

1840.9 (124.6)*as

2984.4 (163.6)

 R excavation

2568.2 (129.4)*b

2610.5 (114.6)*b

3091.3 (84.9)

 Brix

1708.9 (108.5)*cq

1726.0 (111.1)*cst

3027.6 (86.7)

 Br(F1)

1624.6 (102.9)*dq

1700.7 (94.1)*dst

3056.9 (105.2)

 BrCh (F2)

1528.7 (109.4)*r

1656.5 (125.1)*t

3034.0 (106.5)

 BrCHX (F3)

1534.2 (101.8)*r

1698.0 (94.3)*st

3044.9 (100.1)

Amide I (1650 cm−1)

 H excavation

24.0 (1.5)*u

21.5 (1.2)e

20.0 (1.9)e

 R excavation

19.5 (1.5)f

19.2 (1.4)f

18.3 (1.4)f

 Brix

20.9 (1.9)*pf

19.3 (1.2)pf

18.7 (2.3)f

 Br (F1)

24.4 (1.2)*u

22.3 (1.1)*e

18.6 (1.3)

 BrCh (F2)

27.4 (1.5)*v

24.2 (1.1)*g

20.9 (2.0)

 BrCHX (F3)

28.8 (1.7)*v

25.2 (2.3)*g

20.1 (1.2)

Amide III (1235 cm−1)

 H excavation

28.0 (1.2)*hw

26.2 (1.9)*hx

23.0 (1.5)

 R excavation

23.5 (1.9)*i

22.6 (1.3)ij

21.3 (1.5)j

 Brix

28.8 (1.6)*kw

28.4 (1.7)*kx

22.5 (1.8)

 Br (F1)

30.1 (2.3)*w

27.8 (2.3)*x

22.8 (1.2)

 BrCh (F2)

27.6 (1.0)*lw

26.2 (1.3)*lx

21.4 (1.3)

 BrCHX (F3)

28.7 (2.0)*mw

27.0 (1.4)*mx

23.8 (2.1)

C–H bond of pyrrolidine ring (1450 cm−1)

 H excavation

29.4 (1.4)*n

29.3 (2.1)*nz

22.1 (1.4)

 R excavation

25.3 (1.2)*o

25.6 (1.6)*o

21.6 (1.8)

 Brix

34.0 (2.2)*y

28.3 (3.1)*z

23.6 (1.3)

 Br (F1)

35.6 (2.8)*y

28.8 (3.0)*z

22.1 (1.1)

 BrCh (F2)

36.3 (2.3)*y

30.8 (1.6)*z

22.4 (1.4)

 BrCHX (F3)

38.7 (1.4)*

31.4 (1.6)*z

22.2 (1.5)

  1. H excavation: hand excavation, R excavation: Rotary excavation, Brix: Brix 3000, Br (F1): bromelain gel, BrCh (F2): bromelain-chloramine-T gel, BrCHX (F3): bromelain-chlorhexidine gel. (*): There are statistically significant differences between Raman peak intensities in the superficial and deep dentin layers from their sound dentin references. Similar letters indicate that there were statistically no significant differences between groups and layers within columns and rows. Multivariant ANOVA test and Tukey’s post-hoc tests (alpha level of 0.05).
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