BioMed Research International / 2018 / Article / Tab 1

Research Article

Enamel Microcracks Induced by Simulated Occlusal Wear in Mature, Immature, and Deciduous Teeth

Table 1

The results obtained from the analysis of the microcrack parameters in each specimen. The total length of microcracks, count/number of microcracks, and depth of microcracks in the surfaces and subsurfaces of the study groups.

ParameterGroupsp value
MatureImmatureDeciduous

Number of surface microcracksMedian479
Range5107
Maximum71313
Minimum236
abb≤0.001

Total length of surface microcracks (mm)Median5.6410.8016.06
Range10.4415.8917.25
Maximum11.3718.1725.13
Minimum0.932.287.88
Rankabb≤0.001

Number of subsurface microcracksMedian236
Range765
Maximum769
Minimum004
Rankaab≤0.001

Total length of subsurface microcracks (mm)Median2.693.7712.15
Range6.209.9024.98
Maximum6.209.9029.94
Minimum0.000.004.96
Rankaab≤0.001

Depth of microcracks near wear area (µm)Median4.374.3814.99
Range17.0425.6824.43
Maximum17.9826.4928.42
Minimum0.940.813.99
Rankaab

Depth of microcracks far from wear area (µm)Median2.342.762.88
Range14.3315.015.12
Maximum14.8515.257.62
Minimum0.520.242.50
Rankaaa0.711 NS

indicates a statistically significant difference. lowercase letters in the columns indicate statistically significant intergroup differences in the same characteristics in rows. depth of surface microcracks shows the deepest microcrack measurement in relation to the position of the wear area.

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.