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Table 1 Means, standard deviations (SD) and standard errors (SE) of the recession measurements by individual examiners and methods, and for all methods and all examiners combined

From: The accuracy and reliability of digital measurements of gingival recession versus conventional methods

Examiner Method Recession Measurementa
Mean SD SE
A CP 2.23 1.38 0.14
CC 1.95 0.84 0.09
DP 2.19 0.8 0.08
DC 2.16 0.79 0.08
B CP 2.24 0.97 0.1
CC 2.06 0.86 0.09
DP 2.17 0.80 0.08
DC 2.17 0.77 0.08
C CP 2.14 1.12 0.11
CC 1.98 0.97 0.1
DP 2.16 0.85 0.08
DC 2.12 0.82 0.08
D CP 1.91 0.94 0.1
CC 1.64 0.74 0.07
DP 1.85 0.83 0.08
DC 1.77 0.65 0.07
CP all (N = 392) 2.11 1 0.05
CC all (N = 392) 1.91 0.87 0.04
DP all (N = 392) 2.09 0.83 0.04
DC all (N = 392) 2.06 0.78 0.04
A all (N = 392) 2.11 0.85 0.04
B all (N = 392) 2.16 0.85 0.04
C all (N = 392) 2.1 0.95 0.05
D all (N = 392) 1.79 0.8 0.04
  1. a: N = 98 unless stated otherwise. A, B, C, and D: the four examiners in the study. CP, conventional method using periodontal probe; CC, conventional method of taking measurements on cast model using caliper; DP, digital measurements of intraoral scans; and DC, digital measurements of digitized cast models