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Table 2 Results of the statistical analysis of Flexural strength (MPa), Vickers hardness and ΔE00

From: Evaluation of mechanical properties and color stability of 3D-printed denture base materials following two surface treatments

Material

Surface treatment

ΔE00

VH

FS

MD (Min-Max)

MN ± SD

MD (Min-Max)

MN ± SD

MD (Min-Max)

MN ± SD

Nextdent(ND)

Polishing(P)

3.09 Ad (2.4–3.45)

3.06 ± 0.23

18.75Ab (17.33-20)

18.73 ± 0.7

110.04Ae (92.51–126)

108.18 ± 8.51

Glazing(G)

3.11 Ad (2.91–3.42)

3.12 ± 0.16

18.23Ab (16.43–29.17)

18.9 ± 2.74

117.13Aef (64.1-133.93)

111.29 ± 17.97

Powerresin(PR)

Polishing(P)

3.42 Aef (3.01–3.88)

3.4 ± 0.2

25.08Ad (22.23–27.1)

24.72 ± 1.45

74.68Ab (50.48–92.72)

73.72 ± 9.89

Glazing(G)

3.35 Ae (2.92–3.64)

3.31 ± 0.22

26.17Be (24.43–29.5)

26.53 ± 1.13

87.03Bcd (73.25-103.33)

86.84 ± 8.95

Senertek(ST)

Polishing(P)

3.62 Ag (3.4–3.88)

3.61 ± 0.1

16.03Aa (12.4-17.17)

15.96 ± 0.98

116.37Af (102.17-136.18)

116.54 ± 10.26

Glazing(G)

3.53 Afg (3.29–3.77)

3.53 ± 0.14

16.78Ba (15-19.53)

16.88 ± 1.06

132.4Bg (107.33-150.23)

132.87 ± 9.93

Formlabs(FL)

Polishing(P)

2.13 Ac (1.73–2.6)

2.1 ± 0.25

16.95Aa (15.6-18.83)

17.1 ± 0.88

93.16Ad (53.69-112.84)

90.76 ± 17.82

Glazing(G)

1.86 Bb (1.31–2.47)

1.91 ± 0.31

23.67Bd (16.77–32.23)

24.02 ± 4.16

41.89Ba (22.88–53.15)

40.36 ± 8.58

Heat cured(HC)

Polishing(P)

1.4a (0.9–1.78)

1.38 ± 0.23

20.25c (18.83–22.53)

20.33 ± 0.85

82.05c (74.6-85.44)

81.09 ± 3.29

  1. * MN ± SD: Mean ± Standard Deviation, MD (Min-Max): Median (Minimum-Maximum)
  2. ** ΔE00: Color change, VH: Vickers hardness, FS: Flexural strength
  3. † Different uppercase letters indicate significant differences among polishing techniques within each material
  4. ‡ Different lowercase letters indicate significant differences among each materials and polishing techniques