Table 3

Correlation coefficients for each of the analysis software metrics compared to photographic TF score (n = 553)
Software analysis metric Spearman’s rho
Convex hull software Existing technique
Area 0.66** 0.59**
ΔF 0.54** 0.30**
ΔQ 0.65** 0.56**

** Correlation is significant at the 0.01 level (2-tailed).

McGrady et al.

McGrady et al. BMC Oral Health 2012 12:33   doi:10.1186/1472-6831-12-33

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