Fig. 6From: An application of the density standard and scaled–pixel–counting protocol to assess the radiodensity of equine incisor teeth affected by resorption and hypercementosis: preliminary advancement in dental radiographyComparison of normalized Hounsfield unit (nHU) and normalized pixel brightness (nPB) throughout ten steps of density standard (S1–S10). Similarity was tested using linear regressions and considered significant for p < 0.05. If the difference between slopes was not significant (p > 0.05), a single slope measurement was calculatedBack to article page