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Table 1 Clinical crown height means ± SD for the subgroups

From: Quantitative measures of gingival recession and the influence of gender, race, and attrition

Tooth class Caucasian African-American Total (N = 120)
Male (N = 30) Female (N = 30) Male (N = 30) Female (N = 30)
Mean (mm) SD Mean (mm) SD Mean (mm) SD Mean (mm) SD Mean (mm) SD
U6 7.20 1.04 6.68 0.93 7.08 1.05 6.07 1.04 6.74 1.10
U5 7.60 0.93 7.21 1.07 7.18 0.87 6.64 0.82 7.16 0.98
U4 8.46 1.03 8.20 0.90 8.27 0.86 7.72 0.83 8.16 0.94
U3 10.49 1.15 9.80 1.00 10.22 1.05 9.50 1.02 10.00 1.11
U2 8.97 1.05 8.96 1.06 8.79 0.98 8.50 1.06 8.81 1.04
U1 10.49 1.22 9.96 0.81 10.60 0.98 10.02 1.23 10.27 1.10
L6 7.08 0.64 7.03 1.22 6.49 0.63 6.30 0.79 6.73 0.89
L5 7.54 1.01 7.54 0.89 7.41 0.90 7.09 0.78 7.40 0.91
L4 8.81 0.95 8.34 0.59 8.48 0.74 7.68 0.64 8.33 0.85
L3 10.40 1.15 9.71 1.14 10.00 1.20 9.03 1.25 9.78 1.27
L2 8.29 0.99 8.57 0.99 8.27 0.87 8.14 1.23 8.32 1.03
L1 8.15 1.17 8.33 0.99 8.24 0.91 8.13 1.33 8.21 1.10
  1. Reprinted with permission from Eltink et al. [17, 27]